MAX4583ESE中文资料

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max3243e 原理设计

max3243e 原理设计
MAX3243E是一款串行通信接口集成电路，其原理设计旨在提供高性能和稳定的数据传输功能。

该芯片具有多个功能模块，包括收发器、控制逻辑和电压调节器等，为各种通信系统提供了可靠的接口。

MAX3243E的设计理念是通过巧妙地结合不同的电路模块，以实现高速、低功耗和稳定的数据传输。

首先，收发器模块负责将电平信号转换为串行数据，并通过传输线路发送出去。

同时，控制逻辑模块负责处理数据的发送和接收，确保数据的准确传输和解码。

此外，电压调节器模块可提供稳定的电源电压，以保证整个系统的正常运行。

MAX3243E的设计原理充分考虑了通信系统的稳定性和可靠性。

该芯片内部采用了先进的电路设计和制造技术，以确保高质量的信号传输和抗干扰能力。

此外，MAX3243E还具有多种保护功能，如过电流保护和过温保护等，可有效保护系统免受外部干扰和损坏。

MAX3243E的应用非常广泛，可用于各种串行通信系统，如计算机、工控设备和通信设备等。

其高性能和稳定的数据传输特性使其成为数据通信领域的重要组成部分。

通过使用MAX3243E，用户可以实现快速、可靠的数据传输，提高系统的性能和效率。

MAX3243E是一款基于先进电路设计原理的串行通信接口集成电路。

其高性能和稳定的数据传输功能使其在各种通信系统中得到广泛应
用。

通过MAX3243E的设计，用户可以实现高质量的数据传输，提高系统的可靠性和效率。

该芯片的设计理念以人类的视角出发，注重用户体验和系统稳定性，以满足现代通信系统对高性能和可靠性的需求。

max3485esa中文资料

General Description The MAX3483, MAX3485, MAX3486, MAX3488,MAX3490, and MAX3491 are 3.3V , low-power transceivers forRS-485 and RS-422 communication. Each part containsone driver and one receiver. The MAX3483 and MAX3488feature slew-rate-limited drivers that minimize EMI andreduce reflections caused by improperly terminatedcables, allowing error-free data transmission at data ratesup to 250kbps. The partially slew-rate-limited MAX3486transmits up to 2.5Mbps. The MAX3485, MAX3490, andMAX3491 transmit at up to 10Mbps.Drivers are short-circuit current-limited and are protectedagainst excessive power dissipation by thermal shutdowncircuitry that places the driver outputs into a high-imped-ance state. The receiver input has a fail-safe feature thatguarantees a logic-high output if both inputs are opencircuit.The MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, andMAX3486 are designed for half-duplex communication.Applications ●Low-Power RS-485/RS-422 Transceivers ●Telecommunications ●Transceivers for EMI-Sensitive Applications ●Industrial-Control Local Area NetworksFeatures●Operate from a Single 3.3V Supply—No Charge Pump!●Interoperable with +5V Logic ●8ns Max Skew (MAX3485/MAX3490/MAX3491)●Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)●2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)●-7V to +12V Common-Mode Input Voltage Range ●Allows up to 32 Transceivers on the Bus ●Full-Duplex and Half-Duplex Versions Available ●Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)●Current-Limiting and Thermal Shutdown for Driver Overload Protection 19-0333; Rev 1; 5/19Ordering Information continued at end of data sheet.*Contact factory for for dice specifications.PARTTEMP . RANGE PIN-PACKAGE MAX3483CPA0°C to +70°C 8 Plastic DIP MAX3483CSA0°C to +70°C 8 SO MAX3483C/D0°C to +70°C Dice*MAX3483EPA-40°C to +85°C 8 Plastic DIP MAX3483ESA-40°C to +85°C 8 SO MAX3485CPA0°C to +70°C 8 Plastic DIP MAX3485CSA0°C to +70°C 8 SO MAX3485C/D0°C to +70°C Dice*MAX3485EPA-40°C to +85°C 8 Plastic DIP MAX3485ESA -40°C to +85°C 8 SO PARTNUMBERGUARANTEED DATA RATE (Mbps)SUPPLY VOLTAGE (V)HALF/FULL DUPLEX SLEW-RATE LIMITED DRIVER/RECEIVER ENABLE SHUTDOWN CURRENT (nA)PIN COUNT MAX34830.25 3.0 to 3.6Half Yes Yes 28MAX348510Half No No 28MAX34862.5Half Yes Yes 28MAX34880.25Half Yes Yes —8MAX349010Half No No —8MAX349110Half No Yes 214MAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX3491Selection TableOrdering Information找电子元器件上宇航军工Figure 1. MAX3483/MAX3485/MAX3486 Pin Configuration and Typical Operating Circuit Figure 2. MAX3488/MAX3490 Pin Configuration and Typical Operating Circuit Figure 3. MAX3491 Pin Configuration and Typical Operating CircuitMAX3486/MAX3488/MAX3490/MAX3491True RS-485/RS-422 TransceiversFigure 22. MAX3488/MAX3490/MAX3491 Full-Duplex RS-485 NetworkFigure 23. Line Repeater for MAX3488/MAX3490/MAX3491MAX3486/MAX3488/MAX3490/MAX3491True RS-485/RS-422 Transceivers。

MAX3095ESE+中文资料

________________________Applications
Telecommunications Equipment Rugged RS-422/RS-485/RS-423 Bus Receiver Receivers for ESD-Sensitive Applications Level Translators
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
________________Functional Diagram
VCC
Байду номын сангаасG G A1
MAX3095 MAX3096
Y1
Pin Configuration
TOP VIEW
B1 1 A1 2 Y2 Y1 3 G 4 Y3 Y2 5 A2 6 Y4 B2 7 GND 8 16 VCC 15 B4 14 A4
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at .

MAX1483ESA+中文资料

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at .
元器件交易网
µMAX is a registered trademark of Maxim Integrated products, Inc.
________________________________________________________________ Maxim Integrated Products 1
元器件交易网
19-0367; Rev 1; 5/06
MAX1482/MAX1483
20µA, 1⁄8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers
_______________General Description
The MAX1482 and MAX1483 are low-power transceivers for RS-485 and RS-422 communication. Both feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables. Data rates are guaranteed up to 250kbps. The MAX1482/MAX1483 draw only 20µA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1µA. Both parts operate from a single +5V supply. Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit. The MAX1482 is full duplex and the MAX1483 is half duplex. Both parts have a 1⁄8-unit-load input impedance that guarantees up to 256 transceivers on the bus.

公司(普飞诺)新推IC及替换型号

二：开关式降压IC可以应用于：蓄电池供电玩具，工业控制器，仪器仪表，医疗设备，安防，电动车控制器，LED照明灯，家用电器控制板，办公设备等。
三：通信IC可以应用于：工业控制板，电源检测系统，安防设备，门禁系统，楼层烟雾报警系统，电脑，打印机等。
替换型号 78M05 78M06 78M08 78M09 78M12
公司新推IC及替换型号
一：线性稳压器序号型号 1： P78M05 2： P78M06 3： P78M08 4： P78M09 5： P78M12 特点：应用简单，转换效率低，成本低规格 TO252封装，稳压输出固定+5V TO252封装，稳压输出固定+6V TO252封装，稳压输出固定+8V TO252封装，稳压输出固定+9V TO252封装，稳压输出固定+12V
二：开关式降压IC 序号型号规格 1： P2575s-3.3 SOT263封装，固定输出+3.3V 2： P2575T-3.3 TO220封装，固定输出+3.3V 3： P2575S-5.0 SOT263封装，固定输出+5V 4： P2575T-5.0 TO220封装，固定输出+5V 5： P2575S-12 SOT263封装，固定输出+12V 6： P2575T-12 TO220封装，固定输出+12V 7： P2575S-ADJ SOT263封装，输出可调 8： P2575T-ADJ TO220封装，输出可调 9： P2576S-3.3 SOT263封装，固定输出+3.3V 10： P2576T-3.3 TO220封装，固定输出+3.3V 11： P2576S-5.0 SOT263封装，固定输出+5V 12： P2576T-5.O TO220封装，固定输出+5V 13： P2576S-12 SOT263封装，固定输出+12V 14： P2576T-12 TO220封装，固定输出+12V 15： P2576S-ADJ SOT263封装，输出可调 16： P2576T-ADJ TO220封装，输出可调 17： P2596S-3.3 SOT263封装，固定输出+3.3V 18： P2596T-3.3 TO220封装，固定输出+3.3V 19： P2596S-5.0 SOT263封装，固定输出+5V 20： P2596T-5.0 TO220封装，固定输出+5V 21： P2596S-12 SOT263封装，固定输出+12V 22： P2596T-12 TO220封装，固定输出+12V 23： P2596T-ADJ TO220封装，输出可调 24： P2596S-ADJ SOT263封装，输出可调特点：开关式降压IC，转换效率高，2575输出1A，2576/2596系列最大可输出3A，如2575/2576尾缀带有 HV输入可高达DC60V。默认输入40V。2596与2576两点不同1：开关频率2596为150K，2576为52K。2：259 最大输入为40V。三：通信IC 序号型号 1： PFN485CSA 2： PFN485ESA 3： PFN232CSE 4： PFN232ESE

max485esa中文资料

General DescriptionThe MAX481, MAX483, MAX485, MAX487–MAX491, andMAX1487 are low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and onereceiver. The MAX483, MAX487, MAX488, and MAX489feature reduced slew-rate drivers that minimize E MI andreduce reflections caused by improperly terminated cables,thus allowing error-free data transmission up to 250kbps.The driver slew rates of the MAX481, MAX485, MAX490,MAX491, and MAX1487 are not limited, allowing them totransmit up to 2.5Mbps.These transceivers draw between 120µA and 500µA ofsupply current when unloaded or fully loaded with disableddrivers. Additionally, the MAX481, MAX483, and MAX487have a low-current shutdown mode in which they consumeonly 0.1µA. All parts operate from a single 5V supply.Drivers are short-circuit current limited and are protectedagainst excessive power dissipation by thermal shutdowncircuitry that places the driver outputs into a high-imped-ance state. The receiver input has a fail-safe feature thatguarantees a logic-high output if the input is open circuit.The MAX487 and MAX1487 feature quarter-unit-loadreceiver input impedance, allowing up to 128 MAX487/MAX1487 transceivers on the bus. Full-duplex communi-cations are obtained using the MAX488–MAX491, whilethe MAX481, MAX483, MAX485, MAX487, and MAX1487are designed for half-duplex applications.________________________Applications Low-Power RS-485 Transceivers Low-Power RS-422 Transceivers Level Translators Transceivers for EMI-Sensitive Applications Industrial-Control Local Area Networks__Next Generation Device Features o For Fault-Tolerant Applications MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4Unit Load, +3.3V, RS-485 Transceiver MAX3440E–MAX3444E: ±15kV ESD-Protected,±60V Fault-Protected, 10Mbps, Fail-Safe, RS-485/J1708 Transceivers o For Space-Constrained Applications MAX3460–MAX3464: +5V, Fail-Safe, 20Mbps,Profibus RS-485/RS-422 Transceivers MAX3362: +3.3V, High-Speed, RS-485/RS-422Transceiver in a SOT23 Package MAX3280E–MAX3284E: ±15kV ESD-Protected,52Mbps, +3V to +5.5V, SOT23, RS-485/RS-422,True Fail-Safe Receivers MAX3293/MAX3294/MAX3295: 20Mbps, +3.3V,SOT23, RS-485/RS-422 Transmitters o For Multiple Transceiver Applications MAX3030E–MAX3033E: ±15kV ESD-Protected,+3.3V, Quad RS-422 Transmitters o For Fail-Safe Applications MAX3080–MAX3089: Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422Transceiverso For Low-Voltage ApplicationsMAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E: +3.3V Powered, ±15kVESD-Protected, 12Mbps, Slew-Rate-Limited,True RS-485/RS-422 Transceivers For pricing, delivery, and ordering information, please contact Maxim Direct at1-888-629-4642, or visit Maxim Integrated’s website at .______________________________________________________________Selection Table19-0122; Rev 10; 9/14PARTNUMBERHALF/FULL DUPLEX DATA RATE (Mbps) SLEW-RATE LIMITED LOW-POWER SHUTDOWN RECEIVER/DRIVER ENABLE QUIESCENT CURRENT (μA) NUMBER OF RECEIVERS ON BUS PIN COUNT MAX481Half 2.5No Yes Yes 300328MAX483Half 0.25Yes Yes Yes 120328MAX485Half 2.5No No Yes 300328MAX487Half 0.25Yes Yes Yes 1201288MAX488Full 0.25Yes No No 120328MAX489Full 0.25Yes No Yes 1203214MAX490Full 2.5No No No 300328MAX491Full 2.5No No Yes 3003214MAX1487 Half 2.5No No Yes 2301288Ordering Information appears at end of data sheet.找电子元器件上宇航军工MAX481/MAX483/MAX485/MAX487–MAX491/MAX1487Low-Power, Slew-Rate-LimitedRS-485/RS-422 TransceiversPackage Information For the latest package outline information and land patterns, go to . Note that a “+”, “#”, or “-”in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.16Low-Power, Slew-Rate-Limited RS-485/RS-422 TransceiversMAX481/MAX483/MAX485/MAX487–MAX491/MAX1487Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-100017©2014 Maxim Integrated Products, Inc.Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.。

MAX4513CSE+T中文资料

General DescriptionThe MAX4511/MAX4512/MAX4513 are quad, single-pole/single-throw (SPST), fault-protected analog switch-es. They are pin-compatible with the industry-standard nonprotected DG201/DG202/DG213. These new switch-es feature fault-protected inputs and Rail-to-Rail ®signal handling capability. The normally open (NO_) and normally closed (NC_) terminals are protected from overvoltage faults up to 36V during power-up or power-down. During a fault condition, the NO_ or NC_terminal becomes an open circuit and only nanoamperes of leakage current flow from the source, but the switch output (COM_) furnishes up to 10mA of the appropriate polarity supply voltage to the load. This ensures unam-biguous rail-to-rail outputs when a fault begins and ends.On-resistance is 175Ωmax and is matched between switches to 10Ωmax. The off-leakage current is only 0.5nA at +25°C and 10nA at +85°C.The MAX4511 has four normally closed switches. The MAX4512 has four normally open switches. The MAX4513 has two normally closed and two normally open switches.These CMOS switches can operate with dual power supplies ranging from ±4.5V to ±18V or a single supply between +9V and +36V.All digital inputs have +0.8V and +2.4V logic thresh-olds, ensuring both TTL- and CMOS-logic compatibility when using ±15V or a single +12V supply.ApplicationsFeatureso ±40V Fault Protection with Power Off±36V Fault Protection with ±15V Supplies o All Switches Off with Power Off o Rail-to-Rail Signal Handlingo Output Clamped to Appropriate Supply Voltage During Fault Condition; No Transition Glitch o 175Ωmax Signal Paths with ±15V Supplies o No Power-Supply Sequencing Required o ±4.5V to ±18V Dual Supplies +9V to +36V Single Supply o Low Power Consumption, <2mWo Four Separately Controlled SPST Switches o Pin-Compatible with Industry-StandardDG411/DG412/DG413, DG201/DG202/DG213o TTL- and CMOS-Compatible Logic Inputs with Single +9V to +15V or ±15V SuppliesFor free samples & the latest literature: , or phone 1-800-998-8800.For small orders, phone 408-737-7600 ext. 3468.MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches________________________________________________________________Maxim Integrated Products119-4760; Rev 1; 8/02Ordering Information continued at end of data sheet.*Contact factory for dice specifications.Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.Ordering InformationPin Configurations/Functional Diagrams/Truth TablesATE Equipment Data Acquisition Industrial and Process-Control SystemsAvionicsRedundant/Backup SystemsM A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +15V, V- = -15V, GND = 0V, T A =T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Note 1:COM_ and IN_ pins are not fault protected. Signals on COM_ or IN_ exceeding V+ or V- are clamped by internal diodes.Limit forward diode current to maximum current rating.Note 2:NC_ and NO_ pins are fault protected. Signals on NC_ or NO_ exceeding -36V to +36V may damage the device. Theselimits apply with power applied to V+ or V-, or ±40V with V+ = V- = 0.(Voltages Referenced to GND)V+........................................................................-0.3V to +44.0V V-.........................................................................-44.0V to +0.3V V+ to V-................................................................-0.3V to +44.0V COM_, IN_ (Note 1)..............................(V- - 0.3V) to (V+ + 0.3V)NC_, NO_ (Note 2)..................................(V+ - 36V) to (V- + 36V)NC_, NO_ to COM_.................................................-36V to +36V Continuous Current into Any Terminal..............................±30mA Peak Current into Any Terminal(pulsed at 1ms, 10% duty cycle)...................................±50mAContinuous Power Dissipation (T A = +70°C) (Note 2)Plastic DIP (derate 10.53mW/°C above +70°C)...........842mW Narrow SO (derate 8.70mW/°C above +70°C).............696mW TSSOP (derate 9.4mW/°C above +70°C)..................754.7mW CERDIP (derate 10.00mW/°C above +70°C)................800mW Operating Temperature RangesMAX451_C_ E......................................................0°C to +70°C MAX451_E_ E...................................................-40°C to +85°C MAX451_MJE .................................................-55°C to +125°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CMAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)(V+ = +15V, V- = -15V, GND = 0V, T A =T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)(V+ = +15V, V- = -15V, GND = 0V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches_______________________________________________________________________________________5ELECTRICAL CHARACTERISTICS—Single +12V Supply(V+ = +10.8V to +13.2V, V- = 0, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 6_______________________________________________________________________________________Note 1:COM_ and IN_ pins are not fault protected. Signals on COM_ or IN_ exceeding V+ or V- are clamped by internal diodes.Limit forward diode current to maximum current rating.Note 2:NC_ and NO_ pins are fault protected. Signals on NC_ or NO_ exceeding -36V to +36V may damage the device. These limits apply with power applied to V+ or V-, or ±40V with V+ = V- = 0.Note 3:The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.Note 4:∆R ON = ∆R ON(MAX)- ∆R ON(MIN).Note 5:Leakage parameters are 100% tested at maximum rated hot temperature and guaranteed by correlation at T A = +25°C.Note 6:Guaranteed by design.Note 7:Off isolation = 20 log10 [ V COM_/ (V NC_or V NO_) ], V COM_= output, V NC_or V NO_= input to off switch.Note 8:Between any two switches.Note 9:Leakage testing for single-supply operation is guaranteed by testing with dual supplies.ELECTRICAL CHARACTERISTICS—Single +12V Supply (continued)(V+ = +10.8V to +13.2V, V- = 0, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches_______________________________________________________________________________________7__________________________________________Typical Operating Characteristics(T A = +25°C, unless otherwise noted.)010050250200150300350-20-50-15-105101520SWITCH ON-RESISTANCE vs. V COM (DUAL SUPPLIES)V COM (V)S W I T C H O N -R E S I S T A N C E (Ω)80602040160140100120180200-15-50-1051015SWITCH ON-RESISTANCE vs. V COM AND TEMPERATURE (DUAL SUPPLIES)V COM (V)S W I T C H O N -R E S I S T A N C E (Ω)100010051015202530SWITCH ON-RESISTANCE vs. V COM (SINGLE SUPPLY)V COM (V)S W I T C H O N -R E S I S I T A N C E (Ω)050200150100300350250400046281012SWITCH ON-RESISTANCE vs. V COM AND TEMPERATURE (SINGLE SUPPLY)V COM (V)S W I T C H O N -R E S I S T A N C E (Ω)0300200100700800600500400900100005101520ON AND OFF TIMES vs. SUPPLY VOLTAGESUPPLY VOLTAGE (±V)t O N , t O F F (n s )1p10p100p1n10n 100n-50-25255075100125150I D(ON), I S(OFF), AND I D(OFF) LEAKAGES vs. TEMPERATURETEMPERATURE (°C)L E A K A G E (A )02810641214-15-10-5051015CHARGE INJECTION vs. V COM (DUAL SUPPLIES)V COM (V)Q (p C )010*******500400600-5025-255075100125ON AND OFF TIMES vs. TEMPERATURETEMPERATURE (°C)t O N , t O F F (n s )100300200500400600-50025-255075100125POWER-SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (µA )M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 8_______________________________________________________________________________________00.51.51.02.52.03.001015520253035LOGIC-LEVEL THRESHOLD vs. V+M A X 4511-10V+ (V)L O G I C -L E V E L T H R E S H O L D (V )Typical Operating Characteristics (continued)(T A = +25°C, unless otherwise noted.)0-10-20-1200.010.11101001000FREQUENCY RESPONSE-90-100-110FREQUENCY (MHz)L O S S (d B )P H A S E (D E G R E E S )-70-80-50-60-30-4012010080-120-60-80-100-20-402006040Pin Description*As long as the voltage on NO_ or NC_ does not exceed V+ or V-, NO_ (or NC_) and COM_ pins are identical and interchange-able. Either may be considered as an input or output; signals pass equally well in either direction.Detailed DescriptionOverview of Traditional Fault-Protected SwitchesThe MAX4511/MAX4512/MAX4513 are fault-protected CMOS analog switches with unusual operation and construction. Traditional fault-protected switches are constructed by three series FETs. This produces good off characteristics, but fairly high on-resistance when the signals are within about 3V of each supply rail. As the voltage on one side of the switch approaches with-in about 3V of either supply rail (a fault condition), the switch impedance becomes higher, limiting the output signal range (on the protected side of the switch) to approximately 3V less than the appropriate polarity supply voltage.During a fault condition, the output current that flows from the protected side of the switch into its load comes from the fault source on the other side of the switch. I f the switch is open or the load is extremely high impedance, the input current will be very low. I f the switch is on and the load is low impedance,enough current will flow from the source to maintain the load voltage at 3V less than the supply.MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches_______________________________________________________________________________________9Overview of MAX4511/MAX4512/MAX4513The MAX4511/MAX4512/MAX4513 differ considerably from traditional fault-protection switches, with several advantages. First, they are constructed with two paral-lel FETs, allowing very low on-resistance when the switch is on. Second, they allow signals on the NC_ or NO_ pins that are within or slightly beyond the supply rails to be passed through the switch to the COM termi-nal, allowing rail-to-rail signal operation. Third, when a signal on NC_ or NO_ exceeds the supply rails by about 50mV (a fault condition), the voltage on COM_ is limited to the appropriate polarity supply voltage.Operation is identical for both fault polarities. The fault-protection extends to ±36V from GND.During a fault condition, the NO_ or NC_ input pin becomes high impedance regardless of the switch state or load resistance. If the switch is on, the COM_output current is furnished from the V+ or V- pin by “booster” FETs connected to each supply pin. These FETs can typically source or sink up to 10mA.When power is removed, the fault protection is still in effect. In this case, the NO_ or NC_ terminals are a vir-tual open circuit. The fault can be up to ±40V.The COM_ pins are not fault protected; they act as nor-mal CMOS switch pins. If a voltage source is connect-ed to any COM_ pin, it should be limited to the supply voltages. Exceeding the supply voltage will cause high currents to flow through the ESD protection diodes,possibly damaging the device (see Absolute Maximum Ratings ).Pin CompatibilityThese switches have identical pinouts to common non-fault-protected CMOS switches. Care should be exer-cised in considering them for direct replacements in existing printed circuit boards, however, since only the NO_ and NC_ pins of each switch are fault protected.Internal ConstructionInternal construction is shown in Figure 1, with the ana-log signal paths shown in bold. A single normally openFigure 1. Block DiagramM A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 10______________________________________________________________________________________(NO) switch is shown; the normally closed (NC) config-uration is identical except the logic-level translator becomes an inverter. The analog switch is formed by the parallel combination of N-channel FET N1 and P-channel FET P1, which are driven on and off simultane-ously according to the input fault condition and the logic-level state.Normal OperationTwo comparators continuously compare the voltage on the NO_ (or NC_) pin with V+ and V-. When the signal on NO_ or NC_ is between V+ and V- the switch acts normally, with FETs N1 and P1 turning on and off in response to I N_ signals. The parallel combination of N1 and P1 forms a low-value resistor between NO_ (or NC_) and COM_ so that signals pass equally well in either direction.Positive Fault ConditionWhen the signal on NO_ (or NC_) exceeds V+ by about 50mV, the high-fault comparator output is high, turning off FETs N1 and P1. This makes the NO_ (or NC_) pin high impedance regardless of the switch state. I f the switch state is “off”, all FETs are turned off and both NO_ (or NC_) and COM_ are high impedance. I f the switch state is “on”, FET P2 is turned on, sourcing cur-rent from V+ to COM_.Negative Fault ConditionWhen the signal on NO_ (or NC_) exceeds V- by about 50mV, the low-fault comparator output is high, turning off FETs N1 and P1. This makes the NO_ (or NC_) pin high impedance regardless of the switch state. I f the switch state is “off,” all FETs are turned off and both NO_ (or NC_) and COM_ are high impedance. I f the switch state is “on,” FET N2 is turned on, sinking cur-rent from COM_ to V-.Transient Fault Response and RecoveryWhen a fast rise-time and fall-time transient on I N_exceeds V+ or V-, the output (COM_) follows the input (I N_) to the supply rail with only a few nanoseconds delay. This delay is due to the switch on-resistance and circuit capacitance to ground. When the input transient returns to within the supply rails, however, there is a longer output recovery time delay. For positive faults, the recovery time is typically 3.5µs. For negative faults, the recovery time is typically 1.3µs. These values depend on the COM_ output resistance and capacitance, and are not production tested or guaranteed. The delays are not dependent on the fault amplitude. Higher COM_ output resistance and capacitance increase recovery times.COM_ and IN_ PinsFETs N2 and P2 can source about ±10mA from V+ or V-to the COM_ pin in the fault condition. Ensure that if the COM_ pin is connected to a low-resistance load, the absolute maximum current rating of 30mA is never exceeded, both in normal and fault conditions.The GND, COM_, and IN_ pins do not have fault protec-tion. Reverse ESD-protection diodes are internally con-nected between GND, COM_, IN_ and both V+ and V-. If a signal on GND, COM_, or I N_ exceeds V+ or V- by more than 300mV, one of these diodes will conduct heavily. During normal operation these reverse-biased ESD diodes leak a few nanoamps of current to V+ and V-.Fault-Protection Voltage and Power OffThe maximum fault voltage on the NC_ or NO_ pins is ±36V with power applied and ±40V with power off.Failure ModesThe MAX4511/MAX4512/MAX4513 are not lightning arrestors or surge protectors.Exceeding the fault-protection voltage limits on NO_ or NC_, even for very short periods, can cause the device to fail. The failure modes may not be obvious, and fail-ure in one switch may or may not affect other switches in the same package.GroundThere is no connection between the analog signal paths and GND. The analog signal paths consist of an N-channel and P-channel MOSFET with their sources and drains paralleled and their gates driven out of phase to V+ and V- by the logic-level translators.V+ and GND power the internal logic and logic-level translators and set the input logic thresholds. The logic-level translators convert the logic levels to switched V+and V- signals to drive the gates of the analog switch-es. This drive signal is the only connection between the power supplies and the analog signals. GND, IN_, and COM_ have ESD-protection diodes to V+ and V-.IN_ Logic-Level ThresholdsThe logic-level thresholds are CMOS and TTL compati-ble when V+ is +15V. As V+ is raised the threshold increases slightly, and when V+ reaches 25V the level threshold is about 2.8V—above the TTL output high level minimum of 2.4V, but still compatible with CMOS outputs (see Typical Operating Characteristics ).Increasing V- has no effect on the logic-level thresholds,but it does increase the gate-drive voltage to the signal FETs, reducing their on-resistance.MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches______________________________________________________________________________________11Bipolar SuppliesThe MAX4511/MAX4512/MAX4513 operate with bipolar supplies between ±4.5V and ±18V. The V+ and V- sup-plies need not be symmetrical, but their difference can not exceed the absolute maximum rating of 44V.Single SupplyThe MAX4511/MAX4512/MAX4513 operate from a sin-gle supply between +9V and +36V when V- is connect-ed to GND.High-Frequency PerformanceIn 50Ωsystems, signal response is reasonably flat up to 50MHz (see Typical Operating Characteristics ). Above20MHz, the on-response has several minor peaks that are highly layout dependent. The problem with high-fre-quency operation is not turning the switch on, but turn-ing it off. The off-state switch acts like a capacitor and passes higher frequencies with less attenuation. At 10MHz, off isolation is about -42dB in 50Ωsystems,becoming worse (approximately 20dB per decade) as frequency increases. Higher circuit impedances also make off isolation worse. Adjacent channel attenuation is about 3dB above that of a bare IC socket and is due entirely to capacitive coupling.Figure 2. Switch Turn-On/Turn-Off TimesTest Circuits/Timing DiagramsFigure 3. MAX4513 Break-Before-Make IntervalM A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 12______________________________________________________________________________________Figure 4. Charge InjectionFigure 5. COM_, NO_, NC_ CapacitanceTest Circuits/Timing Diagrams (continued)MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches______________________________________________________________________________________13Figure 6. Frequency Response, Off Isolation, and CrosstalkTest Circuits/Timing Diagrams (continued)Pin Configurations/Functional Diagrams/Truth Tables (continued)M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 14______________________________________________________________________________________V-GNDNC4COM4IN4IN3COM30.086"(2.261mm)MAX4511NO1NO2COM1IN1IN2COM2COM4NO4IN4IN3NO3COM30.086"(2.261mm)MAX4512Ordering Information (continued)Chip TopographiesV-GNDCOM4NO4IN4IN3NC3COM3MAX45130.086"(2.261mm)TRANSISTOR COUNT: 139SUBSTRATE CONNECTED TO:V+*Contact factory for dice specifications.MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches______________________________________________________________________________________15Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)M A X 4511/M A X 4512/M A X 4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog Switches 16______________________________________________________________________________________Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages.)MAX4511/MAX4512/MAX4513Quad, Rail-to-Rail, Fault-Protected,SPST Analog SwitchesMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600______________________17©2002 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

MAX3483ESA+中文资料

(MAX3483/MAX3488) o 2nA Low-Current Shutdown Mode
(MAX3483/MAX3485/MAX3486/MAX3491) o -7V to +12V Common-Mode Input Voltage Range o Allows up to 32 Transceivers on the Bus o Full-Duplex and Half-Duplex Versions Available o Industry Standard 75176 Pinout
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) ...............................................................7V Control Input Voltage (RE, DE) ...................................-0.3V to 7V Driver Input Voltage (DI) .............................................-0.3V to 7V Driver Output Voltage (A, B, Y, Z)..........................-7.5V to 12.5V Receiver Input Voltage (A, B) ................................-7.5V to 12.5V Receiver Output Voltage (RO)....................-0.3V to (VCC + 0.3V) Continuous Power Dissipation (TA = +70°C)

MEMORY存储芯片MAX4053ESE+T中文规格书

Figure 8. Driver Propagation TimesFigure 9. Driver Enable and Disable Times (t PZH , t PSH , t PHZ )Figure 10. Driver Enable and Disable Times (t PZL , t PSL , t PLZ )MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 TransceiversDriver Output ProtectionExcessive output current and power dissipation caused by faults or by bus contention are prevented by two mechanisms. A foldback current limit on the output stage provides immediate protection against short circuits over the whole common-mode voltage range (see Typical Operating Characteristics ). In addition, a thermal shut-down circuit forces the driver outputs into a high-imped-ance state if the die temperature rises excessively.Propagation DelayFigures 15–18 show the typical propagation delays. Skew time is simply the difference between the low-to-high and high-to-low propagation delay. Small driver/receiver skew times help maintain a symmetrical mark-space ratio (50% duty cycle).The receiver skew time, |tPRLH - t PRHL |, is under 10ns 20ns for the MAX3483E/MAX3488E). The driver skew times are 8ns for the MAX3485E/MAX3490E/MAX3491E, 12ns for the MAX3486E, and typically under 50ns for the MAX3483E/MAX3488E.Line Length vs. Data RateThe RS-485/RS-422 standard covers line lengths up to 4000 feet. For line lengths greater than 4000 feet, see Figure 21 for an example of a line repeater.Figures 19 and 20 show the system differential voltage for parts driving 4000 feet of 26AWG twisted-pair wire at 125kHz into 120Ω loads.For faster data rate transmission, please consult the factory.±15kV ESD Protection As with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostatic discharges encountered during handling and assembly. The driver outputs and receiver inputs of the MAX3483E family of devices have extra protection against static electricity. Maxim’s engineers have developed state-of-the-art structures to protect these pins against ESD of ±15kV without damage. The ESD structures withstand high ESD in all states: normal operation, shutdown, and powered down. After an ESD event, Maxim’s E versions keep working without latchup or damage.ESD protection can be tested in various ways; the trans-mitter outputs and receiver inputs of this product family are characterized for protection to the following limits:1)±15kV using the Human Body Model 2)±8kV using the Contact-Discharge method specified in IEC 1000-4-23)±15kV using IEC 1000-4-2’s Air-Gap method.ESD Test Conditions ESD performance depends on a variety of conditions. Contact Maxim for a reliability report that documents test setup, test methodology, and test results.Human Body Model Figure 22a shows the Human Body Model and Figure 22b shows the current waveform it generates when dis-charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest, which is then discharged into the test device through a 1.5kΩ resistor.IEC 1000-4-2The IEC 1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifi-cally refer to integrated circuits. The MAX3483E family of devices helps you design equipment that meets Level 4 (the highest level) of IEC 1000-4-2, without the need for additional ESD-protection components.The major difference between tests done using the Human Body Model and IEC 1000-4-2 is higher peak cur-rent in IEC 1000-4-2, because series resistance is lower in the IEC 1000-4-2 model. Hence, the ESD withstand voltage measured to IEC 1000-4-2 is generally lower than that measured using the Human Body Model. Figure 23a shows the IEC 1000-4-2 model, and Figure 23b shows the current waveform for the ±8kV IEC 1000-4-2, Level 4ESD contact-discharge test. test.Figure 21. Line Repeater for MAX3488E/MAX3490E/MAX3491EMAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers。

MAX4638EUE中文资料

General DescriptionThe MAX4638/MAX4639 are single 8:1 and dual 4:1CMOS analog multiplexers/demultiplexers (muxes/demuxes). Each mux operates from a single +1.8V to +5V supply or dual ±2.5V supplies. These devices fea-ture 3.5Ωon-resistance (R ON ) when powered with a single +5V supply and have -75dB of off-isolation and -85dB crosstalk from the output to each off channel.The switching times are 18ns t ON and 7ns t OFF . They feature a -3dB 85MHz bandwidth and a guaranteed 0.25nA leakage current at +25°C.A +1.8V to +5.5V operating range makes the MAX4638/MAX4639 ideal for battery-powered, portable instru-ments. All channels guarantee break-before-make switching. These parts feature bidirectional operation and can handle Rail-to-Rail ®analog signals. All control inputs are TTL/CMOS-logic compatible. Decoding is in standard BCD format, and an enable input is provided to simplify cascading of devices. These devices are avail-able in small 16-pin QFN, TSSOP and SOIC packages,as well as a 20-pin QFN package.ApplicationsAutomatic Test EquipmentLow-Voltage Data-Acquisition Systems Audio and Video Signal Routing Medical Equipment Battery-Powered Equipment Relay ReplacementFeatureso Guaranteed R ON3.5Ω(+5V or ±2.5V Supplies)6Ω(+3V Supply)o Guaranteed 0.4ΩR ON Match Between Channels o Guaranteed 1ΩR ON Flatness Over Signal Range o Guaranteed Low Leakage Currents0.25nA at +25°Co Switching Times: t ON =18ns, t OFF = 7ns o +1.8V to +5.5V Single-Supply Operation ±2.5V Dual-Supply Operation o Rail-to-Rail Signal Handling o TTL/CMOS-Logic Compatible o Crosstalk: -80dB (1MHz)o Off-Isolation: -60dB (10MHz)MAX4638/MAX46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers________________________________________________________________Maxim Integrated Products 119-1782; Rev 1; 3/02Ordering InformationRail-to-Rail is a Registered Trademark of Nippon Motorola, Ltd.Pin Configurations/Functional DiagramsFor pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .Ordering Information continued at end of data sheet.M A X 4638/M A X 46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog MultiplexersABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS—+5V Single Supply(V+ = +5V ±10%, V- = 0, V IH = +2.4V, V IL = +0.8V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.(Voltages Referenced to GND)V+ to V- .................................................................................+6V V+, A_, EN ...............................................................-0.3V to +6V V- ............................................................................+0.3V to -6V NO_, COM_ (Note1)....................................-0.3V to (V+ + 0.3V)Continuous Current A_, EN .............................................±30mA Continuous Current NO_, COM_ ..................................±100mA Peak Current (NO_, COM_)(pulsed at 1ms, 10% duty cycle) ..............................±200mAContinuous Power Dissipation (T A = +70°C)16-Pin QFN (derate 18.5mW/°C above +70°C)........1481mW 16-Pin TSSOP (derate 5.7mW/°C above +70°C)........457mW 16-Pin SO (derate 8.70mW/°C above +70°C) ............696mW 20-Pin QFN (derate 20mW/°C above +70°C)..........1600mW Operating Temperature RangeMAX463_E_ E ...............................................-40°C to +85°C Junction Temperature......................................................+150°C Storage Temperature Range ...........................-65°C to +150°C Lead Temperature (soldering, 10s) ...............................+300°CNote 1:Signals on COM_, NO_ exceeding V+ or V- are clamped by internal diodes. A_ and EN are clamped only to V- and canexceed V+ up to their maximum ratings. Limit forward-diode current to maximum current rating.MAX4638/MAX46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS —+5V Single Supply (continued)(V+ = +5V ±10%, V- = 0, V IH = +2.4V, V IL = +0.8V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)M A X 4638/M A X 46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS —+3.0V Single Supply(V+ = +2.7V to +3.3V, V- = 0, V IH = +2.0V, V IL = +0.4V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V+ = +3V and T A = +25°C.)MAX4638/MAX46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog MultiplexersELECTRICAL CHARACTERISTICS —+3.0V Single Supply (continued)(V+ = +2.7V to +3.3V, V- = 0, V IH = +2.0V, V IL = +0.4V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V+ = +3V and T A = +25°C.)ELECTRICAL CHARACTERISTICS —±2.5V Dual Supplies(V+ = +2.5 ±10%, V- = -2.5V ±10%, V IH = +2.0V, V IL = +0.4V, T A =T MIN to T MAX , unless otherwise noted. Typical values are at V±= ±2.5V and T A = +25°C.)M A X 4638/M A X 46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog MultiplexersELECTRICAL CHARACTERISTICS —±2.5V Dual Supplies (continued)(V+ = +2.5 ±10%, V- = -2.5V ±10%, V IH = +2.0V, V IL = +0.4V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V±= ±2.5V and T A = +25°C.)Note 3:∆R ON = R ON(MAX)- R ON(MIN).Note 4:Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over thespecified analog signal ranges.Note 5:Guaranteed by design.Note 6:Off-Isolation = 20log 10(V COM_/ V NO_), V COM_= output, V NO_= input to off switch.Note 7:Between any two switches.Note 8:∆R ON matching specifications for QFN packaged parts are guaranteed by design.6______________________________________________________________________________________MAX4638/MAX46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers_______________________________________________________________________________________705101520252.0 2.51.0 1.50.53.0 3.54.0 4.55.0ON-RESISTANCE vs. V COMV COM (V)R O N (Ω)01.00.51.53.03.52.52.04.001.0 1.52.0 2.50.53.0 3.54.0 4.55.0ON-RESISTANCE vs. V COM ANDTEMPERATUREV COM (V)R 0N (Ω)2143560 1.0 1.50.5 2.0 2.5 3.0ON-RESISTANCE vs. V COM ANDTEMPERATUREV COM (V)R O N (Ω)60100801401201801602001.0 3.02.0 4.0 5.01.5 3.52.5 4.5 5.5 6.0SUPPLY CURRENT vs. SUPPLY VOLTAGEM A X 4638 t o c 04SUPPLY VOLTAGE (V)S U P P L Y C U R RE N T (p A )6428101214161820-2.5-0.51.5 3.5CHARGE INJECTION vs. V COMV COM (V)C H A R G E (p C )5.51010.10.010.001-4010-15356085SUPPLY CURRENT vs. TEMPERATUREM A X 463 t o c 06TEMPERATURE (°C)S U P P L Y C U R R E N T (n A )0.60.81.01.21.41.61.81.82.82.33.33.84.34.85.3LOGIC LEVEL THRESHOLD vs.SUPPLY VOLTAGE AND TEMPERATURESUPPLY VOLTAGE (V)L O G I C V O L T A G E (V )0105252015403530451.53.03.52.02.54.04.55.05.5ENABLE TURN-ON/TURN-OFF TIMEvs. SUPPLY VOLTAGESUPPLY VOLTAGE (V)T I M E (n s)246810121416-40-1510356085ENABLE TURN-ON/TURN-OFF TIMEvs. TEMPERATURETEMPERATURE (°C)T I M E (n s )Typical Operating Characteristics(V+ = +5V, V- = 0, T A = +25°C, unless otherwise noted.)M A X 4638/M A X 46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers -120-80-100-40-600-200.0110.1101001000FREQUENCY RESPONSEFREQUENCY (MHz)R E S P O N S E (d B )0.010.00110.1100101000-40-2020408060ON/OFF-LEAKAGE CURRENTvs. TEMPERATURETEMPERATURE (°C)L E A K A G E C U R R E N T (p A)0.020.060.040.080.10TOTAL HARMONIC DISTORTIONvs. FREQUENCYFREQUENCY (kHz)T H D (%)0.0110.110100Pin DescriptionTypical Operating Characteristics (continued)(V+ = +5V, V- = 0, T A = +25°C, unless otherwise noted.)MAX4638/MAX46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers_______________________________________________________________________________________9Detailed DescriptionThe MAX4638/MAX4639 are low-voltage, CMOS analog muxes. The MAX4638 is an 8:1 mux that switches one of eight inputs (NO1–NO8) to a common output (COM)as determined by the 3-bit binary inputs A0, A1, and A2. The MAX4639 is a 4:1 dual mux that switches one of four differential inputs to a common differential out-put as determined by the 2-bit binary inputs A0 and A1.Both the MAX4638/MAX4639 have an EN input that can be used to enable or disable the device. When dis-abled, all channels are switched off. See Truth Tables.Applications InformationOvervoltage ProtectionProper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maxi-mum ratings because stresses beyond the listed rat-ings can cause permanent damage to the devices.Always sequence V+ on first, then V-, followed by the logic inputs. I f power-supply sequencing is not possi-ble, add two small-signal diodes (D1, D2) in series with the supply pins for overvoltage protection (Figure 1).Adding diodes reduces the analog signal range to one diode drop below V+ and one diode drop above V-, but does not affect the devices ’ low switch resistance.Device operation is unchanged, and the difference between V+ and V- should not exceed 6V. These pro-tection diodes are not recommended when using a sin-gle supply. For single-supply operation, V- should be connected to GND as close to the device as possible.MAX4638 (Single 8-to-1 Mux)MAX4639 (Dual 4-to-1 Mux)Truth TablesOrdering Information (continued)M A X 4638/M A X 46393.5Ω, Single 8:1 and Dual 4:1, Low-Voltage Analog Multiplexers 10______________________________________________________________________________________Test Circuits/Timing DiagramsMAX4638/MAX4639Low-Voltage Analog Multiplexers______________________________________________________________________________________11Figure 5. Charge InjectionTest Circuits/Timing Diagrams (continued)M A X 4638/M A X 4639Low-Voltage Analog Multiplexers 12______________________________________________________________________________________Figure 7. CrosstalkFigure 8. Channel OFF/ON CapacitanceTest Circuits/Timing Diagrams (continued)Chip InformationTRANSISTOR COUNT: 632Figure 6. Off-Isolation/On-Channel BandwidthMAX4638/MAX4639Low-Voltage Analog Multiplexers______________________________________________________________________________________13Pin Configurations (continued)M A X 4638/M A X 4639Low-Voltage Analog Multiplexers 14______________________________________________________________________________________Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)MAX4638/MAX4639Low-Voltage Analog MultiplexersMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600_____________________15©2002 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

MAX3483EESA-T中文资料

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
元器件交易网
3.3V-Powered, ±15kV ESD-Protected, 12Mbps and Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
Ordering Information
PART TEMP. RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C PIN-PACKAGE 8 SO 8 Plastic DIP 8 SO 8 Plastic DIP 8 SO 8 Plastic DIP 8 SO 8 Plastic DIP MAX3483ECSA MAX3483ECPA MAX3483EESA MAX3483EEPA MAX3485ECSA MAX3485ECPA MAX3485EESA MAX3485EEPA

MAX4583ASE中文资料

For pricing delivery, and ordering information please contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at .________________General DescriptionThe MAX4581/MAX4582/MAX4583 are low-voltage,CMOS analog ICs configured as an 8-channel multiplexer (MAX4581), two 4-channel multiplexers (MAX4582), and three single-pole/double-throw (SPDT) switches (MAX4583).These CMOS devices can operate continuously with ±2V to ±6V dual power supplies or a +2V to +12V sin-gle supply. Each switch can handle rail-to-rail analog signals. The off-leakage current is only 1nA at +25°C or 5nA at +85°C.All digital inputs have 0.8V to 2.4V logic thresholds,ensuring TTL/CMOS-logic compatibility when using a single +5V or dual ±5V supplies.________________________ApplicationsBattery-Operated Equipment Audio and Video Signal Routing Low-Voltage Data-Acquisition Systems Communications Circuits Automotive____________________________Featureso Offered in Automotive Temperature Range (-40°C to +125°C)o Guaranteed On-Resistance80Ωwith ±5V Supplies150Ωwith Single +5V Supplyo Guaranteed On-Resistance Match Between Channelso Guaranteed Low Off-Leakage Current 1nA at +25°Co Guaranteed Low On-Leakage Current 1nA at +25°Co +2V to +12V Single-Supply Operation ±2V to ±6V Dual-Supply Operation o TTL/CMOS-Logic Compatible o Low Distortion: < 0.02% (600Ω)o Low Crosstalk: < -96dB (50Ω, MAX4582)o High Off-Isolation: < -74dB (50Ω)MAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches________________________________________________________________Maxim Integrated Products 1____________________________________Pin Configurations/Functional Diagrams19-1328; Rev 5; 6/07Ordering Information continued at end of data sheet.M A X 4581/M A X 4582/M A X 4583Low-Voltage, CMOS Analog Multiplexers/Switches 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS —Dual Supplies(V CC = 4.5V to 5.5V, V EE = -4.5V to -5.5V, V _H = 2.4V, V _L = 0.8V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Voltages Referenced to V EEV CC .........................................................................-0.3V to 13V Voltage into Any Terminal (Note 1)...(V EE - 0.3V) to (V CC + 0.3V)Continuous Current into Any Terminal..............................±20mA Peak Current, X_, Y_, Z_(pulsed at 1ms, 10% duty cycle)...................................±40mA ESD per Method 3015.7..................................................>2000V Continuous Power Dissipation (T A = +70°C)16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....842mW 16-Pin Narrow SO (derate 8.70mW/°C above +70°C).....696mW16-Pin QSOP (derate 8.3mW/°C above +70°C)...............667mW 16-Pin TSSOP (derate 6.7mW/°C above +70°C).............457mW 16-Pin QFN (derate 18.5mW/°C above +70°C).............1481mW Operating Temperature RangesMAX458_C_ .........................................................0°C to +70°C MAX458_E_ ......................................................-40°C to +85°C MAX458_A_.....................................................-40°C to +125°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CNote 1:Voltages exceeding V CC or V EE on any signal terminal are clamped by internal diodes. Limit forward-diode current to maxi-mum current rating.MAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS —Dual Supplies (continued)(V CC = 4.5V to 5.5V, V EE = -4.5V to -5.5V, V _H = 2.4V, V _L = 0.8V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)M A X 4581/M A X 4582/M A X 4583Low-Voltage, CMOS Analog Multiplexers/Switches 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS —Single +5V Supply(V CC = 4.5V to 5.5V, V EE = 0V, V _H = 2.4V, V _L = 0.8V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)MAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches_______________________________________________________________________________________5ELECTRICAL CHARACTERISTICS —Single +3V Supply(V= 2.7V to 3.6V, V = 0V, V = 2.0V, V = 0.5V, T = T to T , unless otherwise noted. Typical values are at T = +25°C.)Note 2:The algebraic convention is used in this data sheet; the most negative value is shown in the minimum column.Note 3:∆R ON = R ON(MAX)- R ON(MIN).Note 4:Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specifiedanalog signal ranges; i.e., V X_, V Y_, V Z_= 3V to 0 and 0 to -3V.Note 5:Leakage parameters are 100% tested at maximum-rated hot operating temperature, and guaranteed by correlation at T A = +25°C.Note 6:Guaranteed by design, not production tested.M A X 4581/M A X 4582/M A X 4583Low-Voltage, CMOS Analog Multiplexers/Switches 6_______________________________________________________________________________________100010-51234-4-3-2-15ON-RESISTANCE vs. V X , V Y , V Z(DUAL SUPPLIES)V X , V Y , V Z (V)R O N (Ω)1005352515455565-5-1-2-4-312345ON-RESISTANCEvs. V X, V Y , V Z AND TEMPERATURE(DUAL SUPPLIES)V X , V Y , V Z (V)R O N (Ω)10,0001010234567891ON-RESISTANCE vs. V X , V Y , V Z(SINGLE SUPPLY)1001000V X , V Y , V Z (V)R O N (Ω)10705030901101302.01.50.5 1.0 2.53.0 3.54.0 4.55.0ON-RESISTANCEvs. V X , V Y , V Z AND TEMPERATURE(SINGLE SUPPLY)V X , V Y , V Z (V)R O N (Ω)0.01OFF-LEAKAGE vs. TEMPERATURE100TEMPERATURE (°C)O F F L E A K A G E (n A )10.110-5012525-25075501001ON-LEAKAGE vs. TEMPERATURE10,000100,000TEMPERATURE (°C)O N L E A K A G E (p A )100101000-5012525-2507550100-2.5-1.5-2.0-1.00.51.00-0.51.5CHARGE INJECTION vs. V X , V Y , V ZV X , V Y , V Z (V)Q (p C )Typical Operating Characteristics(V CC = 5V, V EE = -5V, GND = 0V, T A = +25°C, unless otherwise noted.)MAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches_______________________________________________________________________________________70.01SUPPLY CURRENT vs. TEMPERATURE100TEMPERATURE (°C)I C C , I E E (n A )1010.1-5012525-25075501000-120-110-1000.1101001 FREQUENCY RESPONSE-90-80FREQUENCY (MHz)L O S S (d B )PHASE (DEGREES)-60-50-70-30-20-10-401000.01101k 10k100100kTOTAL HARMONIC DISTORTIONvs. FREQUENCY0.1FREQUENCY (Hz)T H D (%)110110-110-210-310-410-510-610-710-810-910-1010-110231465789111012V CC CURRENT vs. LOGIC LEVEL(V A , V B , V C , V ENABLE )V A , V B , V C , V ENABLEI C C (A )01.00.52.01.52.53.00234157689101112LOGIC-LEVEL THRESHOLD vs. V CCM A X 4581t o c 12V CC (V)V A , V B , V C , V E N A B L E (V )Typical Operating Characteristics (continued)(V CC = 5V, V EE = -5V, GND = 0V, T A = +25°C, unless otherwise noted.)M A X 4581/M A X 4582/M A X 4583Low-Voltage, CMOS Analog Multiplexers/Switches 8_________________________________________________________________________________________________Applications InformationPower-Supply ConsiderationsOverviewThe MAX4581/MAX4582/MAX4583 construction is typi-cal of most CMOS analog switches. They have threesupply pins: V CC , V EE , and GND. V CC and V EE are used to drive the internal CMOS switches and set the limits of the analog voltage on any switch. Reverse ESD-protection diodes are internally connected between each analog-signal pin and both V CC and V EE . If any analog signal exceeds V CC or V EE , one of these diodesPin Descriptionin both directions.MAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches_______________________________________________________________________________________9Table 1. Truth Table/Switch ProgrammingX = Don’t care*C not present on MAX4582.Note:Input and output pins are identical and interchangeable. Either may be considered an input or output; signals pass equallywell in either direction.will conduct. During normal operation, these and other reverse-biased ESD diodes leak, forming the only cur-rent drawn from V CC or V EE .Virtually all the analog leakage current comes from the ESD diodes. Although the ESD diodes on a given sig-nal pin are identical and therefore fairly well balanced,they are reverse biased differently. Each is biased by either V CC or V EE and the analog signal. This means their leakages will vary as the signal varies. The differ-ence in the two diode leakages to the V CC and V EE pins constitutes the analog-signal-path leakage current.All analog leakage current flows between each pin and one of the supply terminals, not to the other switch ter-minal. This is why both sides of a given switch canshow leakage currents of either the same or opposite polarity.There is no connection between the analog-signal paths and GND.V CC and G ND power the internal logic and logic-level translators, and set the input logic limits. The logic-level translators convert the logic levels into switched V CC and V EE signals to drive the gates of the analog sig-nals. This drive signal is the only connection between the logic supplies and signals and the analog supplies.V CC and V EE have ESD-protection diodes to GND.The logic-level thresholds are TTL/CMOS compatible when V CC is +5V. As V CC rises, the threshold increasesM A X 4581/M A X 4582/M A X 4583slightly, so when V CC reaches +12V the threshold is about 3.1V (above the TTL-guaranteed high-level mini-mum of 2.8V, but still compatible with CMOS outputs).Bipolar SuppliesThese devices operate with bipolar supplies between ±2V and ±5V. The V CC and V EE supplies need not be symmetrical, but their sum cannot exceed the +13V absolute maximum ratingSingle SupplyThese devices operate from a single supply between +2V and +12V when V EE is connected to G ND. All of the bipolar precautions must be observed. At room temperature, they actually “work ” with a single supply near or below +1.7V, although as supply voltage decreases, switch on-resistance and switching times become very high.Overvoltage ProtectionProper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maxi-mum ratings because stresses beyond the listed rat-ings can cause permanent damage to the devices.Always sequence V CC on first, then V EE , followed by the logic inputs and analog signals. If power-supply sequencing is not possible, add two small signal diodes (D1, D2) in series with the supply pins for overvoltage protection (Figure 1).Adding diodes reduces the analog-signal range to one diode drop below V CC and one diode drop above V EE ,but does not affect the devices ’ low switch resistance and low leakage characteristics. Device operation is unchanged, and the difference between V CC and V EE should not exceed 13V. These protection diodes are not recommended when using a single supply if signal levels must extend to ground.High-Frequency PerformanceIn 50Ωsystems, signal response is reasonably flat up to 50MHz (see Typical Operating Characteristics ).Above 20MHz, the on response has several minor peaks which are highly layout dependent. The problem is not turning the switch on, but turning it off. The off-state switch acts like a capacitor and passes higher frequencies with less attenuation. At 10MHz, off isola-tion is about -50dB in 50Ωsystems, becoming worse (approximately 20dB per decade) as frequency in-creases. Higher circuit impedances also degrade off isolation. Adjacent channel attenuation is about 3dB above that of a bare IC socket and is entirely due to capacitive coupling.Pin NomenclatureThe MAX4581/MAX4582/MAX4583 are pin-compatible with the industry-standard 74HC4051/74HC4052/74HC4053 and the MAX4051/MAX4052/MAX4053.They function identically and have identical logic dia-grams, although these parts differ electrically.The pin designations and logic diagrams in this data sheet conform to the original 1972 specifications pub-lished by RCA for the CD4051/CD4052/CD4053. These designations differ from the standard Maxim switch and mux designations as found all other Maxim data sheets (including the MAX4051/MAX4052/MAX4053) and may cause confusion. Designers who feel more comfortable with Maxim ’s standard designations are advised that the pin designations and logic diagrams on the MAX4051/MAX4052/MAX4053 data sheet may be freely applied to the MAX4581/MAX4582/MAX4583.Low-Voltage, CMOS Analog Multiplexers/Switches 10______________________________________________________________________________________Figure 1. Overvoltage Protection Using External Blocking DiodesMAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches______________________________________________________________________________________11Figure 2. Address Transition Times______________________________________________Test Circuits/Timing DiagramsM A X 4581/M A X 4582/M A X 4583Low-Voltage, CMOS Analog Multiplexers/Switches 12______________________________________________________________________________________Figure 3. Inhibit Switching Times_________________________________Test Circuits/Timing Diagrams (continued)MAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches______________________________________________________________________________________13Figure 4. Break-Before-Make IntervalFigure 5. Charge Injection_________________________________Test Circuits/Timing Diagrams (continued)M A X 4581/M A X 4582/M A X 4583Low-Voltage, CMOS Analog Multiplexers/Switches14______________________________________________________________________________________Figure 6. Off Isolation, On Loss, and CrosstalkFigure 7. Capacitance _________________________________Test Circuits/Timing Diagrams (continued)MAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches______________________________________________________________________________________15*Contact factory for availability.**EP = Exposed pad.Pin Configurations/Functional Diagrams (continued)____Chip Topographies (continued)TRANSISTOR COUNT: 219SUBSTRATE CONNECTED TO V+.Z1Z0EnableN.C.XV EEGND C BX1X0A0.053"(1.35mm)0.069"(1.75mm)MAX4583N.C. = NO CONNECTIONM A X 4581/M A X 4582/M A X 4583Low-Voltage, CMOS Analog Multiplexers/Switches 16________________________________________________________________________________________________________________________________________________Chip TopographiesTRANSISTOR COUNT: 219SUBSTRATE CONNECTED TO V+.V EEGND C B0.053"(1.35mm)MAX4581TRANSISTOR COUNT: 219SUBSTRATE CONNECTED TO V+.V EEGND B N.C.0.053"(1.35mm)MAX4582MAX4581/MAX4582/MAX4583Low-Voltage, CMOS AnalogMultiplexers/Switches______________________________________________________________________________________17Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)M A X 4581/M A X 4582/M A X 4583Low-Voltage, CMOS Analog Multiplexers/Switches Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.18____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2007 Maxim Integrated Productsis a registered trademark of Maxim Integrated Products, Inc.Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages.)Revision HistoryPages changed at Rev 5: 1, 8, 15, 16, 18。

max3485中文资料

MAX3483，MAX3485，MAX3486，MAX3488，MAX3490以及MAX3491是用于RS-485与RS-422通信的3.3V，低功耗收发器，每个器件中都具有一个驱动器和一个接收器。

MAX3483和MAX3488具有限摆率驱动器，可以减小EMI，并降低由不恰当的终端匹配电缆引起的反射，实现最高250kbps的无差错数据传输。

MAX3486的驱动器摆率部分受限，可以实现最高2.5Mbps的传输速率。

MAX3485，MAX3490和MAX3491则可以实现最高10Mbps 的传输速率。

驱动器具有短路电流限制，并可以通过热关断电路将驱动器输出置为高阻状态，防止过度的功率损耗。

接收器输入具有失效保护特性，当输入开路时，可以确保逻辑高电平输出。

特性●半双工●速率：10Mbps●限摆率：NO●接收允许控制：YES●关断电流：2nA●引脚数：8参数暂无MAX3485的参数信息引脚图与功能MAX3485ESA品牌厂家：Maxim Integrated（美信），MAX3485ESA 渠道分销商：2家，现货库存数量：1542 PCS，MAX3485ESA价格参考：¥8.121元。

Maxim Integrated（美信）MAX3485ESA参数（SOIC 8Pin 3V 10Mbps，封装：SOIC），MAX3485ESA中文资料和引脚图及功能表说明书PDF下载（17页，409KB），您可以在MAX3485ESA接口芯片规格书Datesheet数据手册中，查到MAX3485ESA引脚图及功能的应用电路图电压和使用方法，MAX3485ESA典型电路教程。

MAX3485ESA可以用什么代替？代换型号如：MAX3485CSA+T、MAX3485CSA替代换，MAX3485ESA芯片系列中文手册中包含MAX3485ESA各引脚定义说明介绍及MAX3485ESA引脚功能图解，用户中文手册MAX3485ESA芯片手册PDF下载（17页，409KB）。

MAX803SEXR中文资料

MAX803SEXRRev. ARELIABILITY REPORTFORMAX803SEXRPLASTIC ENCAPSULATED DEVICESAugust 3, 2006MAXIM INTEGRATED PRODUCTS120 SAN GABRIEL DR.SUNNYVALE, CA 94086byWrittenPedicordJimQualityAssuranceManager, Reliability LabConclusionThe MAX803 successfully meets the quality and reliability standards required of all Maxim products. In addition, Maxim’s continuous reliability monitoring program ensures that all outgoing product will continue to meet Maxim’s quality and reliability standards.Table of ContentsI. ........Device Description V. ........Quality Assurance InformationII. ........Manufacturing Information VI. .......Reliability EvaluationIII. .......Packaging Information IV. .......Die Information.....AttachmentsI. Device DescriptionA. GeneralThe MAX803 is a microprocessor (µP) supervisory circuit used to monitor the power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating externalcomponents and adjustments when used with +5V, +3.3V, +3.0V, or +2.5V powered circuits.This circuit performs a single function: it asserts a reset signal whenever the V CC supply voltage declines below a preset threshold, keeping it asserted for at least 140ms after V CC has risen above the reset threshold. Reset thresholds suitable for operation with a variety of supply voltages are available.The MAX803 has an open-drain output stage. The MAX803's open-drain RESET-bar output requiresa pull-up resistor that can be connected to a voltage higher than V CC. The MAX803 has an active-low RESET-bar output. The reset comparator is designed to ignore fast transients on V CC, and the outputs are guaranteed to be in the correct logic state for V CC down to 1V.Low supply current makes the MAX803 ideal for use in portable equipment. The MAX803 isavailable in a 3-pin SC70 package.B. Absolute Maximum RatingsItem RatingTerminal Voltage (with respect to GND)VCC -0.3V to +6.0VRESET, RESET (push-pull) -0.3V to (VCC + 0.3V)to-0.3V+6.0VRESETdrain)(open20mAVCCInputCurrent,Output Current, RESET, RESET 20mAVCC 100V/µsRateRise,ofContinuous Power Dissipation (TA = +70°C)3-Pin SC70 (derate 2.17mW/°C above +70°C) 174mW3-Pin SOT23 (derate 4mW/°C above +70°C) 320mWOperating Temperature Range+125°Cto-40°C3-PinSC70+105°Cto3-Pin-40°CSOT23Storage Temperature Range -65°C to +150°CLead Temperature (soldering, 10s) +300°CII. Manufacturing InformationA. Description/Function: 3-Pin Microprocessor Reset CircuitsB. Process: B8 (Standard 0.8 micron silicon gate CMOS)C. Number of Device Transistors: 380D. Fabrication Location: California, USAE. Assembly Location: MalaysiaF. Date of Initial Production: January, 2000III. Packaging InformationSC70-3A. Package Type: 3-PinB. Lead Frame: Alloy 42C. Lead Finish: Solder Plate or 100% Matte TinD. Die Attach: Nonconductive EpoxyE. Bondwire: Gold (1 mil dia.)F. Mold Material: Epoxy with silica fillerG. Assembly Diagram: # 05-1601-0082H. Flammability Rating: Class UL94-V0I. Classification of Moisture Sensitivityper JEDEC standard J-STD-020-C: Level 1IV. Die InformationA. Dimensions: 30 x 30 milsPassivation: Si3N4/SiO2 (Silicon nitride/ Silicon dioxide)B.C. Interconnect: Aluminum/Si (Si = 1%)D. Backside Metallization: NoneE. Minimum Metal Width: 0.8 microns (as drawn)F. Minimum Metal Spacing: 0.8 microns (as drawn)G. Bondpad Dimensions: 5 mil. Sq.H. Isolation Dielectric: SiO2I. Die Separation Method: Wafer SawV. Quality Assurance InformationA. Quality Assurance Contacts: Jim Pedicord (Manager, Reliability Operations)Bryan Preeshl (Managing Director of QA)B. Outgoing Inspection Level: 0.1% for all electrical parameters guaranteed by the Datasheet.0.1% For all Visual Defects.C. Observed Outgoing Defect Rate: < 50 ppmD. Sampling Plan: Mil-Std-105DVI. Reliability EvaluationA. Accelerated Life TestThe results of the 135°C biased (static) life test are shown in Table 1. Using these results, the Failure Rate (λ) is calculated as follows:λ = 1 = 1.83 (Chi square value for MTTF upper limit)MTTFλ = 6.87 x 10-9λ = 6.87 F.I.T. (60% confidence level @ 25°C)This low failure rate represents data collected from Maxim’s reliability monitor program. In addition to routine production Burn-In, Maxim pulls a sample from every fabrication process three times per week and subjects it to an extended Burn-In prior to shipment to ensure its reliability. The reliability control level for each lot to be shipped as standard product is 59 F.I.T. at a 60% confidence level, which equates to 3 failures in an 80 piece sample. Attached Burn-In Schematic (Spec. #06-5033) shows the static Burn-In circuit. Maxim performs failure analysis on any lot that exceeds this reliability control level. Maxim also performs quarterly 1000 hour life test monitors. This data is published in the Product Reliability Report (RR-1N). Current monitor data for the B8/S8 Process results in a FIT rate of 0.17 @ 25°C and 2.92 @ 55°C (eV = 0.8, UCL = 60%).B. Moisture Resistance TestsMaxim pulls pressure pot samples from every assembly process three times per week. Each lot sample must meet an LTPD = 20 or less before shipment as standard product. Additionally, the industry standard 85°C/85%RH testing is done per generic device/package family once a quarter.C. E.S.D. and Latch-Up TestingThe MS42 die type has been found to have all pins able to withstand a transient pulse of ±2500V, per Mil-Std-883 Method 3015 (reference attached ESD Test Circuit). Latch-Up testing has shown that this device withstands a current of ±250mA.Table 1Reliability Evaluation Test ResultsMAX803S EXRTEST ITEM TEST CONDITION FAILURE SAMPLE NUMBER OFSIZEFAILURES IDENTIFICATION PACKAGEStatic Life Test (Note 1)160DCParametersTa = 135°CBiased & functionalityTime = 192 hrs.Moisture Testing (Note 2)77SC70ParametersPressure Pot Ta = 121°CDCP = 15 psi. & functionality100%RH=Time = 168hrs.77ParametersTa85°C DC85/85=85% &functionality=RHBiased1000hrs.=TimeMechanical Stress (Note 2)77 0ParametersTemperature -65°C/150°CDCfunctionalityCycles&1000Cycle1010MethodNote 1: Life Test Data may represent plastic DIP qualification lots.Note 2: Generic Package/Process dataAttachment #1TABLE II. Pin combination to be tested. 1/ 2/1/ Table II is restated in narrative form in 3.4 below. 2/ No connects are not to be tested. 3/ Repeat pin combination I for each named Power supply and for ground (e.g., where V PS1 is V DD , V CC , V SS , V BB , GND, +V S, -V S , V REF , etc). 3.4 Pin combinations to be tested. a.Each pin individually connected to terminal A with respect to the device ground pin(s) connected to terminal B. All pins except the one being tested and the ground pin(s) shall be open. b. Each pin individually connected to terminal A with respect to each different set of a combination of all named power supply pins (e.g., V SS1, or V SS2 or V SS3 or V CC1, or V CC2) connected to terminal B. All pins except the one being tested and the power supply pin or set of pins shall be open.c.Each input and each output individually connected to terminal A with respect to a combination of all the other input and output pins connected to terminal B. All pins except the input or output pin being tested and the combination of all the other input and output pins shall be open.Terminal A (Each pin individually connected to terminal A with the other floating) Terminal B (The common combination of all like-named pins connected to terminal B) 1. All pins except V PS1 3/ All V PS1 pins 2. All input and output pinsAll other input-output pinsMil Std 883DMethod 3015.7Notice 8 TERMINAL BTERMINAL APROBE (NOTE 6) R = 1.5k ΩC = 100pf。

MAX4582LETE中文资料

General DescriptionThe MAX4581L/MAX4582L/MAX4583L are low-voltage,CMOS analog ICs configured as an 8-channel multi-plexer (MAX4581L), two 4-channel multiplexers (MAX4582L), and three single-pole/double-throw (SPDT) switches (MAX4583L).These CMOS devices operate with a +2V to +12V sin-gle supply. Each switch can handle rail-to-rail analog signals. Off-leakage current is only 2nA at +25°C.All digital inputs have 0.8V to 2.0V logic thresholds to ensure TTL/CMOS-logic compatibility when using a +12V supply.ApplicationsAudio and Video Signal Routing Data-Acquisition Systems Communications Circuits Automotive DSL ModemFeatures♦+3V Logic-Compatible Inputs (V IH = 2.0V, V IL = 0.8V)♦Guaranteed On-Resistance: 80Ωwith +12V Supply ♦Guaranteed 4ΩOn-Resistance Match Between Channels♦Guaranteed Low Off-Leakage Current: 2nA at +25°C ♦Guaranteed Low On-Leakage Current: 2nA at +25°C♦+2V to +12V Supply Operation ♦TTL/CMOS-Logic Compatible♦Low Crosstalk: -96dB (MAX4582L)♦High Off-Isolation: -90dB♦Tiny 4mm ×4mm Thin QFN Package ♦Pin Compatible with Industry-Standard 74HC4051/74HC4052/74HC4053 and MAX4051/MAX4052/MAX4053MAX4581L/MAX4582L/MAX4583LLow-Voltage, CMOS AnalogMultiplexers/Switches________________________________________________________________Maxim Integrated Products 1Pin Configurations/Functional DiagramsOrdering Information19-2941; Rev 1; 6/07For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at .Ordering Information continued at end of data sheet.*EP = Exposed pad.M A X 4581L /M A X 4582L /M A X 4583LLow-Voltage, CMOS Analog Multiplexers/Switches 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V CC = +12V ±5%, V_H = 2.0V, V_L = 0.8V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.) (Notes 2, 3)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Note 1:Voltages exceeding V CC or GND on any signal terminal are clamped by internal diodes. Limit forward-diode current to max-imum current rating.(All Voltages Referenced to GND, Unless Otherwise Noted.)V CC .........................................................................-0.3V to +13V Voltage At Any Pin (Note 1)...........(GND - 0.3V) to (V CC + 0.3V)Continuous Current into Any Terminal..............................±20mA Peak Current X_, Y_ or Z_(pulsed at 1ms, 10% duty cycle)..................................±40mA ESD per Method 3015.7..................................................>2000VContinuous Power Dissipation (T A = +70°C)16-Pin Narrow SO (derate 8.7mW/°C above +70°C)...696mW 16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW 16-Pin Thin QFN (derate 16.9mW/°C above +70°C).1349mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range.............................-65°C to +150°C Junction Temperature......................................................+150°C Lead Temperature (soldering, 10s).................................+300°CELECTRICAL CHARACTERISTICS (continued)MAX4581L/MAX4582L/MAX4583L Low-Voltage, CMOS Analog Multiplexers/Switches(V CC= +12V ±5%, V_H= 2.0V, V_L= 0.8V, T A= T MIN to T MAX, unless otherwise noted. Typical values are at T A = +25°C.) (Notes 2, 3)1009070608000678910111234512ON-RESISTANCE vs. V COMM A X 4581L /2L /3L t o c 01V COM (V)O N -R E S I S T A N C E (Ω)50403020101009070608000678910111234512ON-RESISTANCE vs. V COMV COM (V)O N -R E S I S T A N C E (Ω)50403020101001010.0001-403550658095110-25-10520125OFF-LEAKAGE CURRENT vs. TEMPERATURETEMPERATURE (°C)O F F -L E A K A G E C UR R E N T (n A )0.10.010.001Typical Operating Characteristics(V CC = 12V, V EN = GND, T A = +25°C, unless otherwise noted.)M A X 4581L /M A X 4582L /M A X 4583LLow-Voltage, CMOS Analog Multiplexers/Switches 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS (continued)(V = +12V ±5%, V_= 2.0V, V_= 0.8V, T = T to T , unless otherwise noted. Typical values are at T = +25°C.) (Notes 2, 3)Note 3:The algebraic convention used in this data sheet is where the most negative value is the minimum column.Note 4:ΔR ON = R ON(MAX)- R ON(MIN).Note 5:Flatness is defined as the difference between the maximum and minimum value of on-resistance as measured over the specified analog signal ranges.Note 6:Leakage parameters are 100% tested at the maximum-rated hot operating temperature and guaranteed by design at T A =+25°C.Note 7:Guaranteed by design, not production tested.MAX4581L/MAX4582L/MAX4583LLow-Voltage, CMOS AnalogMultiplexers/Switches_______________________________________________________________________________________51001010.001-403550658095110-25-10520125ON-LEAKAGE CURRENT vs. TEMPERATUREM A X 4581L /2L /3L t o c 04TEMPERATURE (°C)O N -L E A K A G E C U R R E N T (n A )0.10.010214389765100234516789101112CHARGE INJECTION vs. V COMM A X 4581L /2L /3L t o c 05V COM (V)C H A R G E I N J E C T I O N (p C )1000100100.01-403550658095110-25-10520125SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (n A )10.10.10.0001101k 10k100100kTOTAL HARMONIC DISTORTIONvs. FREQUENCY0.001FREQUENCY (Hz)T O T A L H A R M O N I C D I S T O R T I O N (%)0.01FREQUENCY RESPONSEFREQUENCY (MHz)0.0011101000.010.11000G A I N (d B )30-130-110-90-70-50-3010-10P H A S E (D E G R E E S )90-150-120-90-60-3006030SUPPLY CURRENT vs. LOGIC-LEVEL VOLTAGELOGIC-LEVEL VOLTAGE (V)0678910111234512S U P P L Y C U R R E N T (μA )10,0000.00010.0010.010.11101000100M A X 4581L /2L /3L t o c 0900.60.20.41.41.21.00.81.81.62.00234157689101112LOGIC-LEVEL THRESHOLD vs. SUPPLY VOLTAGEM A X 4581L /2L /3L t o c 10SUPPLY VOLTAGE (V)L O G I C -L E V E L T H R E S H O L D (V )Typical Operating Characteristics (continued)(V CC = 12V, V EN = GND, T A = +25°C, unless otherwise noted.)M A X 4581L /M A X 4582L /M A X 4583LLow-Voltage, CMOS Analog Multiplexers/Switches 6_______________________________________________________________________________________in both directions.Detailed Description The MAX4581L/MAX4582L/MAX4583L are low-voltage, CMOS analog ICs that operate from a single supply of +2V to +12V. The MAX4581L is configured as an 8-channel multiplexer, the MAX4582L as two 4-channel multiplexers, and the MAX4583L as three single-pole/double-throw (SPDT) switches. These devices can handle rail-to-rail analog signals with only 2nA of off-leakage current at +25°C.The MAX4581L/MAX4582L/MAX4583L are TTL/CMOS-logic compatible with 0.8V to 2.0V logic thresholds for all digital inputs when operating from a +12V supply.Applications InformationPower-Supply Considerations The MAX4581L/MAX4582L/MAX4583Ls’ construction is typical of most CMOS analog switches. The supply input, V CC, is used to power the internal CMOS switch-es and sets the limit of the analog voltage on any switch. Reverse ESD protection diodes are internally connected between each analog signal pin and both V CC and G ND. If any analog signal exceeds V CC or goes below G ND, one of these diodes conducts. During normal operation, these reverse-biased ESD diodes leak, causing the only current drawn from V CC or GND. Virtually all the analog leakage current comes from the ESD diodes. Although the ESD diodes on a given signal pin are identical, and therefore fairly well balanced, they are reverse biased differently by either V CC or G ND and the analog signal. This means that leakage varies as the analog signal varies. The differ-ence in the two diodes’ leakage to V CC and GND con-stitutes the analog signal-path leakage current. Because there is no connection between the analog signal paths and GND, all analog leakage current flows between each pin and one of the supply terminals, not to the other switch terminal. Because of this, both sides of a given switch can show leakage currents of either the same or opposite polarity.V CC and GND power the internal logic and logic-level translators, and set both the input and output logic lim-its. The logic-level translators convert the logic levels into switched V CC and GND signals to drive the gates of the analog switches. This drive signal is the only connection between the logic supplies (and signals) and the analog supplies. The logic-level thresholds are TTL/CMOS compatible when V CC is +12V.Overvoltage Protection Proper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maxi-mum ratings because stresses beyond the listed rat-ings can cause permanent damage to the devices. Always sequence V CC first, followed by the logic inputs and analog signals.Pin Nomenclature The MAX4581L/MAX4582L/MAX4583L are pin compati-ble with the industry-standard 74HC4051/74HC4052/ 74HC4053 and the MAX4051/MAX4052/MAX4053.*C not present on MAX4582L.Note:Input and output pins are identical and interchangeable. Either may be considered an input or output; signals pass equally well in either direction.MAX4581L/MAX4582L/MAX4583L Low-Voltage, CMOS Analog Multiplexers/Switches _______________________________________________________________________________________7M A X 4581L /M A X 4582L /M A X 4583LLow-Voltage, CMOS Analog Multiplexers/Switches 8_______________________________________________________________________________________Test Circuits/Timing DiagramsFigure 1. Enable Switching TimesMAX4581L/MAX4582L/MAX4583L Low-Voltage, CMOS Analog Multiplexers/Switches Figure 2. Address Transition Time_______________________________________________________________________________________9M A X 4581L /M A X 4582L /M A X 4583LLow-Voltage, CMOS Analog Multiplexers/Switches 10______________________________________________________________________________________Figure 3. Break-Before-Make IntervalFigure 4. Charge InjectionMAX4581L/MAX4582L/MAX4583L Low-Voltage, CMOS Analog Multiplexers/SwitchesFigure 5. NO/COM CapacitanceFigure 6. Off-Isolation, On-Loss, and Crosstalk______________________________________________________________________________________11M A X 4581L /M A X 4582L /M A X 4583LLow-Voltage, CMOS Analog Multiplexers/Switches 12______________________________________________________________________________________Ordering Information (continued)Pin Configurations/Functional Diagrams (continued)Chip InformationTRANSISTOR COUNT: 219PROCESS: CMOS*EP = Exposed pad.____________________Revision HistoryPages changed at Rev 1: 1, 6, 12, 16Package InformationMAX4581L/MAX4582L/MAX4583L Low-Voltage, CMOS Analog Multiplexers/Switches (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline informationgo to /packages.)M A X 4581L /M A X 4582L /M A X 4583LLow-Voltage, CMOS Analog Multiplexers/Switches 14______________________________________________________________________________________Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to /packages .)Package Information (continued)MAX4581L/MAX4582L/MAX4583L Low-Voltage, CMOS Analog Multiplexers/Switches (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline informationgo to /packages.)M A X 4581L /M A X 4582L /M A X 4583LLow-Voltage, CMOS Analog Multiplexers/Switches Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.16____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2007 Maxim Integrated Productsis a registered trademark of Maxim Integrated Products.Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to /packages .)。

MAX4665ESE中文资料

PBX, PABX Systems Audio-Signal Routing Avionics
MAX4664CPE MAX4664ESE MAX4664EPE
0°C to +70°C -40°C to +85°C -40°C to +85°C
16 Plastic DIP 16 Narrow SO 16 Plastic DIP
SO/DIP
MAX4665
LOGIC
SWITCH
0
OFF
1
ON
SWITCHES SHOWN FOR LOGIC “0” INPUT
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.
IN1 1 COM1 2
NO1 3 V- 4
MAX4664/MAX4665/MAX4666
5Ω, Quad, SPST, CMOS Analog Switches
ABSOLUTE MAXIMUM RATINGS
V+ to GND ..............................................................-0.3V to +44V V- to GND ..............................................................+0.3V to -44V V+ to V-...................................................................-0.3V to +44V VL to GND ........................................(GND - 0.3V) to (V+ + 0.3V) All Other Pins to DGND (Note 1) ......... (V- - 0.3V) to (V+ + 0.3V) Continuous Current (COM_, NO_, NC_) ........................±100mA Peak Current (COM_, NO_, NC_)

max3485中文资料

max3485eesa + T概述Max3485eesa + T是3.3V电源±15kV ESD保护，真正的RS485 / RS422收发器，采用8引脚nsoic封装。

该低功耗收发器包含一个驱动器和一个接收器。

max3485e传输速率高达15Mbps。

它具有增强的静电保护。

所有发送器输出和接收器输入均具有±15kV保护，并通过IEC 1000-4-2气隙放电；±8Kv保护是通过IEC 1000-4-2接触放电，±15kV保护是通过人体模型。

驱动器受到短路电流的限制，并通过将驱动器输出置于高阻抗状态的热关断电路来防止过多的功耗。

接收器输入具有故障安全功能，如果两个输入均打开，则提供逻辑高电平输出。

Max3485e适用于EMI敏感应用，集成服务，数字网络和数据包交换电源电压范围：3V至3.6V工作温度范围-40°C至85°C半双工通讯该操作由单个+ 3.3V电源供电，无电荷泵兼容+ 5V逻辑2Na小电流关闭模式共模输入电压范围：-7V至+ 12V工业标准75176引脚输出驱动器/接收器启用功能工业控制LAN，ISDN，低功耗RS-485 / RS-422收发器;分组交换;电信;用于EMI敏感应用的收发器Max3483，max3485，max3486，max3488，max3490和max3491是用于RS-485和RS-422通信的3.3V低功耗收发器，每个收发器都有一个驱动器和一个接收器。

Max3483和max3488具有有限速率驱动器，可以降低EMI并减少由于端子匹配电缆不合适而引起的反射，从而实现高达250kbps的无错误数据传输。

由于其有限的摆幅速率，Max3486可以实现最大2.5mbps 的传输速率。

Max3485，max3490和max3491可以实现高达10Mbps的传输速率。

驱动器具有短路电流限制，并且可以通过热关断电路将驱动器的输出设置为高阻状态，以防止过多的功率损耗。

MAX3443EASA+中文资料

General DescriptionThe MAX3440E–MAX3444E fault-protected RS-485 and J1708 transceivers feature ±60V protection from signal faults on communication bus lines. Each device contains one differential line driver with three-state output and one differential line receiver with three-state input. The 1/4-unit-load receiver input impedance allows up to 128 trans-ceivers on a single bus. The devices operate from a 5V supply at data rates of up to 10Mbps. True fail-safe inputs guarantee a logic-high receiver output when the receiver inputs are open, shorted, or connected to an idle data line.Hot-swap circuitry eliminates false transitions on the data bus during circuit initialization or connection to a live backplane. Short-circuit current-limiting and ther-mal shutdown circuitry protect the driver against exces-sive power dissipation, and on-chip ±15kV ESD protection eliminates costly external protection devices.The MAX3440E–MAX3444E are available in 8-pin SO and PDIP packages and are specified over industrial and automotive temperature ranges.ApplicationsRS-422/RS-485 Communications Truck and Trailer Applications Industrial NetworksTelecommunications Systems Automotive Applications Features♦±15kV ESD Protection ♦±60V Fault Protection♦Guaranteed 10Mbps Data Rate (MAX3441E/MAX3443E)♦Hot Swappable for Telecom Applications ♦True Fail-Safe Receiver Inputs♦Enhanced Slew-Rate-Limiting Facilitates Error-Free Data Transmission(MAX3440E/MAX3442E/MAX3444E)♦Allow Up to 128 Transceivers on the Bus ♦-7V to +12V Common-Mode Input Range♦Automotive Temperature Range (-40°C to +125°C)♦Industry-Standard PinoutMAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers________________________________________________________________Maxim Integrated Products 1Pin Configurations and Typical Operating CircuitsOrdering Information19-2666; Rev 1; 12/05For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,or visit Maxim’s website at .Ordering Information continued at end of data sheet.M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Voltages Referenced to GNDV CC ........................................................................................+7V FAULT, DE/RE, RE , DE, DE , DI, TXD..........-0.3V to (V CC + 0.3V)A, B (Note 1)........................................................................±60V RO..............................................................-0.3V to (V CC + 0.3V)Short-Circuit Duration (RO, A, B)...............................Continuous Continuous Power Dissipation (T A = +70°C)8-Pin SO (derate 5.9mW/°C above +70°C)..................471mW 8-Pin PDIP (derate 9.09mW/°C above +70°C).............727mWOperating Temperature RangesMAX344_EE_ _...............................................-40°C to +85°C MAX344_EA_ _.............................................-40°C to +125°C Storage Temperature Range.............................-65°C to +150°C Junction Temperature......................................................+150°C Lead Temperature (soldering, 10s).................................+300°CDC ELECTRICAL CHARACTERISTICSNote 1:A, B must be terminated with 54Ωor 100Ωto guarantee ±60V fault protection.MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 TransceiversDC ELECTRICAL CHARACTERISTICS (continued)(V = +4.75V to +5.25V, T = T to T , unless otherwise noted. Typical values are at V = +5V and T = +25°C.)M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 4_______________________________________________________________________________________SWITCHING CHARACTERISTICS (MAX3440E/MAX3442E/MAX3444E)MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers_______________________________________________________________________________________5SWITCHING CHARACTERISTICS (MAX3441E/MAX3443E)(V CC = +4.75V to +5.25V, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5V and T A = +25°C.)Note 3:The short-circuit output current applies to peak current just before foldback current limiting; the short-circuit foldback outputcurrent applies during current limiting to allow a recovery from bus contention.M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 6_______________________________________________________________________________________RECEIVER OUTPUT CURRENT vs. OUTPUT LOW VOLTAGEM A X 3443E t o c 04OUTPUT LOW VOLTAGE (V)R E C E I V E R O U T P U T C U R R E N T (m A )5.04.50.5 1.0 1.5 2.5 3.0 3.52.0 4.051015202530354000RECEIVER OUTPUT CURRENT vs. OUTPUT HIGH VOLTAGEM A X 3443E t o c 05OUTPUT HIGH VOLTAGE (V)R E C E I V E R O U T P U T C U R R E N T (m A )5.04.50.5 1.0 1.5 2.5 3.0 3.52.0 4.051015202530354000RECEIVER OUTPUT VOLTAGEvs. TEMPERATURETEMPERATURE (°C)R E C E I V E R O U T P U T V O L T A G E (V )110956580-105203550-250.51.01.52.02.53.03.54.04.55.0-40125DRIVER OUTPUT CURRENTvs. DIFFERENTIAL OUTPUT VOLTAGEDIFFERENTIAL OUTPUT VOLTAGE (V A - V B ) (V)D R I VE R O U T P U T C U R R E N T (m A )0.51.0 1.52.53.0 3.52.010203040506070800DIFFERENTIAL OUTPUT VOLTAGEvs. TEMPERATURETEMPERATURE (°C)D I F FE R E N T I A L O U T P U T V O L T A G E (V )110956580-105203550-250.51.01.52.02.53.03.50-40125Typical Operating Characteristics(V CC = +5V, T A = +25°C, unless otherwise noted.)NO-LOAD SUPPLY CURRENTvs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (m A )1109580655035205-10-251234560-40125NO-LOAD SUPPLY CURRENTvs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (m A )1109580655035205-10-2548121620240-40125SHUTDOWN SUPPLY CURRENTvs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (μA )1109580655035205-10-250.11100.01-40125A, B CURRENTvs. A, B VOLTAGE (TO GROUND)A, B VOLTAGE (V)A ,BC U R R E N T (μA )40306050-50-40-30-10010-2020-800-400-1600-2000-12000400800120016002000-60MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 TransceiversOD OCFigure 3. Driver Propagation TimesTest Circuits and WaveformsM A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 8_______________________________________________________________________________________Figure 7. Receiver Propagation DelayFigure 5. Driver Enable and Disable TimesMAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers_______________________________________________________________________________________9Note 4:The input pulse is supplied by a generator with the following characteristics: f = 5MHz, 50% duty cycle; tr ≤6ns; Z 0= 50Ω.Note 5:C L includes probe and stray capacitance.M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 10______________________________________________________________________________________MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers______________________________________________________________________________________11Table 5. MAX3440E/MAX3441E (RS-485/RS-422)Detailed DescriptionThe MAX3440E–MAX3444E fault-protected transceivers for RS-485/RS-422 and J1708 communication contain one driver and one receiver. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted, or when they are connected to a terminated transmission line with all drivers disabled (see the True Fail-Safe section). All devices have a hot-swap input structure that prevents disturbances on the differential signal lines when a circuit board is plugged into a hot back-plane (see the Hot-Swap Capability section). The MAX3440E/MAX3442E/MAX3444E feature a reduced slew-rate driver that minimizes EMI and reduces reflec-tions caused by improperly terminated cables, allowing error-free data transmission up to 250kbps (see the Reduced EMI and Reflections section). The MAX3441E/MAX3443E drivers are not slew-rate limited, allowing transmit speeds up to 10Mbps.DriverThe driver accepts a single-ended, logic-level input (DI) and transfers it to a differential, RS-485/RS-422level output (A and B). Deasserting the driver enable places the driver outputs (A and B) into a high-imped-ance state.ReceiverThe receiver accepts a differential, RS-485/RS-422level input (A and B), and transfers it to a single-ended,logic-level output (RO). Deasserting the receiver enable places the receiver inputs (A and B) into a high-imped-ance state (see Tables 1–7).Low-Power Shutdown(MAX3442E/MAX3443E/MAX3444E)The MAX3442E/MAX3443E/MAX3444E offer a low-power shutdown mode. Force DE low and RE high to shut down the MAX3442E/MAX3443E. Force DE and RE high to shut down the MAX3444E. A time delay of 50ns prevents the device from accidentally entering shutdown due to logic skews when switching between transmit and receive modes. Holding DE low and RE high for at least 800ns guarantees that the MAX3442E/MAX3443E enter shutdown. In shutdown, the devices consume a maxi-mum 20µA supply current.±60V Fault ProtectionThe driver outputs/receiver inputs of RS-485 devices in industrial network applications often experience voltage faults resulting from shorts to the power grid that exceed the -7V to +12V range specified in the EIA/TIA-485 standard. In these applications, ordinary RS-485devices (typical absolute maximum -8V to +12.5V)require costly external protection devices. To reduce system complexity and eliminate this need for external protection, the driver outputs/receiver inputs of the MAX3440E–MAX3444E withstand voltage faults up to ±60V with respect to ground without damage.Protection is guaranteed regardless whether the device is active, shut down, or without power.True Fail-SafeThe MAX3440E–MAX3444E use a -50mV to -200mV differential input threshold to ensure true fail-safe receiver inputs. This threshold guarantees the receiver outputs a logic high for shorted, open, or idle data lines. The -50mV to -200mV threshold complies with the ±200mV threshold EIA/TIA-485 standard.M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 12______________________________________________________________________________________±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against ESD encountered during handling and assembly. The MAX3440E–MAX3444E receiver inputs/driver outputs (A, B) have extra protection against static electricity found in normal operation. Maxim’s engineers have developed state-of-the-art structures to protect these pins against ±15kV ESD without damage. After an ESD event, the MAX3440E–MAX3444E continue working without latchup.ESD protection can be tested in several ways. The receiver inputs are characterized for protection to ±15kV using the Human Body Model.ESD Test ConditionsESD performance depends on a number of conditions.Contact Maxim for a reliability report that documents test setup, methodology, and results.Human Body ModelFigure 9a shows the Human Body Model, and Figure 9b shows the current waveform it generates when dis-charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of inter-est, which is then discharged into the device through a 1.5k Ωresistor.Driver Output ProtectionTwo mechanisms prevent excessive output current and power dissipation caused by faults or bus contention.The first, a foldback current limit on the driver output stage, provides immediate protection against short cir-cuits over the whole common-mode voltage range. The second, a thermal shutdown circuit, forces the driver out-puts into a high-impedance state if the die temperature exceeds +160°C. Normal operation resumes when the die temperature cools to +140°C, resulting in a pulsed output during continuous short-circuit conditions.MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers______________________________________________________________________________________13Figure 9a. Human Body ESD Test ModelM A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 14______________________________________________________________________________________Hot-Swap CapabilityHot-Swap InputsInserting circuit boards into a hot, or powered, back-plane may cause voltage transients on DE, DE/RE, RE ,and receiver inputs A and B that can lead to data errors.For example, upon initial circuit board insertion, the processor undergoes a power-up sequence. During this period, the high-impedance state of the output drivers makes them unable to drive the MAX3440E–MAX3444E enable inputs to a defined logic level. Meanwhile, leak-age currents of up to 10µA from the high-impedance out-put, or capacitively coupled noise from V CC or G ND,could cause an input to drift to an incorrect logic state.To prevent such a condition from occurring, the MAX3440E–MAX3443E feature hot-swap input circuitry on DE, DE/RE, and RE to guard against unwanted dri-ver activation during hot-swap situations. The MAX3444E has hot-swap input circuitry only on RE .When V CC rises, an internal pulldown (or pullup for RE )circuit holds DE low for at least 10µs, and until the cur-rent into DE exceeds 200µA. After the initial power-up sequence, the pulldown circuit becomes transparent,resetting the hot-swap tolerable input.Hot-Swap Input CircuitryAt the driver-enable input (DE), there are two NMOS devices, M1 and M2 (Figure 10). When V CC ramps from zero, an internal 15µs timer turns on M2 and sets the SR latch, which also turns on M1. Transistors M2, a 2mA current sink, and M1, a 100µA current sink, pull DE to GND through a 5.6k Ωresistor. M2 pulls DE to the disabled state against an external parasitic capaci-tance up to 100pF that may drive DE high. After 15µs,the timer deactivates M2 while M1 remains on, holding DE low against three-state leakage currents that may drive DE high. M1 remains on until an external current source overcomes the required input current. At this time, the SR latch resets M1 and turns off. When M1turns off, DE reverts to a standard, high-impedance CMOS input. Whenever V CC drops below 1V, the input is reset.A complementary circuit for RE uses two PMOS devices to pull RE to V CC .__________Applications Information128 Transceivers on the BusThe MAX3440E–MAX3444E transceivers 1/4-unit-load receiver input impedance (48k Ω) allows up to 128transceivers connected in parallel on one communica-tion line. Connect any combination of these devices,and/or other RS-485 devices, for a maximum of 32-unit loads to the line.Reduced EMI and ReflectionsThe MAX3440E/MAX3442E/MAX3444E are slew-rate limited, minimizing EMI and reducing reflections caused by improperly terminated cables. Figure 11shows the driver output waveform and its Fourier analy-sis of a 125kHz signal transmitted by a MAX3443E.High-frequency harmonic components with large ampli-tudes are evident.Figure 12 shows the same signal displayed for a MAX3442E transmitting under the same conditions.Figure 12’s high-frequency harmonic components are much lower in amplitude, compared with Figure 11’s,and the potential for EMI is significantly reduced.Figure 10. Simplified Structure of the Driver Enable Pin (DE)In general, a transmitter’s rise time relates directly to the length of an unterminated stub, which can be dri-ven with only minor waveform reflections. The following equation expresses this relationship conservatively:Length = t RISE / (10 x 1.5ns/ft)where t RISE is the transmitter’s rise time.For example, the MAX3442E’s rise time is typically 800ns, which results in excellent waveforms with a stub length up to 53ft. A system can work well with longer unterminated stubs, even with severe reflections, if the waveform settles out before the UART samples them.RS-485 ApplicationsThe MAX3440E–MAX3443E transceivers provide bidi-rectional data communications on multipoint bus trans-mission lines. Figures 13 and 14show a typical network applications circuit. The RS-485 standard covers line lengths up to 4000ft. To minimize reflections and reduce data errors, terminate the signal line at both ends in its characteristic impedance, and keep stub lengths off the main line as short as possible.J1708 ApplicationsThe MAX3444E is designed for J1708 applications. To configure the MAX3444E, connect DE and RE to G ND.Connect the signal to be transmitted to TXD. Terminate the bus with the load circuit as shown in Figure 15. The drivers used by SAE J1708 are used in a dominant-mode application. DE is active low; a high input on DE places the outputs in high impedance. When the driver is disabled (TXD high or DE high), the bus is pulled high by external bias resistors R1 and R2. Therefore, a logic level high is encoded as recessive. When all transceivers are idle in this configuration, all receivers output logic high because of the pullup resistor on A and pulldown resistor on B. R1 and R2 provide the bias for the recessive state.C1 and C2 combine to form a 6MHz lowpass filter, effec-tive for reducing FM interference. R2, C1, R4, and C2combine to form a 1.6MHz lowpass filter, effective for reducing AM interference. Because the bus is untermi-nated, at high frequencies, R3 and R4 perform a pseudotermination. This makes the implementation more flexible, as no specific termination nodes are required at the ends of the bus.MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers______________________________________________________________________________________155.00MHz 500kHz/div 020dB/div Figure 11. Driver Output Waveform and FFT Plot of MAX3443E Transmitting a 125kHz Signal 5.00MHz500kHz/div 020dB/divFigure 12. Driver Output Waveform and FFT Plot of MAX3442E Transmitting a 125kHz SignalM A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 16______________________________________________________________________________________Figure 13. MAX3440E/MAX3441E Typical RS-485 NetworkFigure 14. MAX3442E/MAX3443E Typical RS-485 NetworkMAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 TransceiversFigure 15. J1708 Application CircuitChip InformationTRANSISTOR COUNT: 310PROCESS: BiCMOSPin Configurations and Typical Operating Circuits (continued)M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers 18______________________________________________________________________________________Ordering Information (continued)MAX3440E–MAX3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers______________________________________________________________________________________19Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)M A X 3440E –M A X 3444E±15kV ESD-Protected, ±60V Fault-Protected,10Mbps, Fail-Safe RS-485/J1708 Transceivers Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. N o circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.20____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2005 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)____________________Revision HistoryPages changed at Rev 1: 1, 6, 11。

MAX3243EEWI中文资料

AutoShutdown is a trademark of Maxim Integrated Products. †Covered by U.S. Patent numbers 4,636,930; 4,679,134; 4,777,577; 4,797,899; 4,809,152; 4,897,774; 4,999,761; 5,649,210; and other patents pending.
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: , or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468.
Selector Guide
NO. OF VCC RANGE DRIVERS/ (V) RECEIVERS 1/1 2/2 3/5 3.0 to 5.5 3.0 to 5.5 3.0 to 5.5 AUTOSHUTDOWN
Pin Configurations appear at end of data sheet. Typical Operating Circuits appear at end of data sheet.
VCC to GND ..............................................................-0.3V to +6V V+ to GND (Note 1) ..................................................-0.3V to +7V V- to GND (Note 1) ...................................................+0.3V to -7V V+ + |V-| (Note 1) .................................................................+13V Input Voltages T_IN, EN, FORCEON, FORCEOFF to GND ............-0.3V to +6V R_IN to GND ......................................................................±25V Output Voltages T_OUT to GND................................................................±13.2V R_OUT, R2OUTB, INVALID to GND .........-0.3V to (VCC + 0.3V) Short-Circuit Duration T_OUT to GND .........................................................Continuous Continuous Power Dissipation (TA = +70°C) 16-Pin SSOP (derate 7.14mW/°C above +70°C) ...........571mW 20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)....889mW 20-Pin SSOP (derate 8.00mW/°C above +70°C) ...........640mW 28-Pin Wide SO (derate 12.50mW/°C above +70°C)............1W 28-Pin SSOP (derate 9.52mW/°C above +70°C)............762mW Operating Temperature Ranges MAX32_ _EC_ _ ....................................................0°C to +70°C MAX32_ _EE_ _..................................................-40°C to +85°C Storage Temperature Range .............................-65°C to +160°C Lead Temperature (soldering, 10sec) .............................+300°C

INTERSIL EL4583 数据手册

®EL4583Sync Separator, 50% Slice, S-H, Filter,H OUTThe EL4583 extracts timing from video sync in NTSC, PAL, and SECAM systems, and non standard formats, or from computer graphics operating at higher scan rates. Timing adjustment is via an external resistor. Input without valid vertical interval (no serration pulses) produces a default vertical output.Outputs are: composite sync, vertical sync, filter, burst/back porch, horizontal, no signal detect, level, and odd/even output (in interlaced scan formats only).The EL4583 sync slice level is set to the mid-point between sync tip and the blanking level. This 50% point is determined by two internal sample and hold circuits that track sync tip and back porch levels. It provides hum and noise rejection and compensates for input levels of 0.5V to 2.0V P-P.A built in filter attenuates the chroma signal to prevent color burst from disturbing the 50% sync slice. Cut off frequency is set by a resistor to ground from the Filter Cut Off pin. Additionally, the filter can be by-passed and video signal fed directly to the Video Input.The level output pin provides a signal with twice the sync amplitude which may be used to control an external AGC function. A TTL/CMOS compatible No Signal Detect Output flags a loss or reduction in input signal level. A resistor sets the Set Detect Level.The EL4583 is manufactured using Intersil’s high performance analog CMOS process.Features•NTSC, PAL, and SECAM sync separation•Single supply, +5V operation•Precision 50% slicing•Built-in programmable color burst filter•Decodes non-standard vertical•Horizontal sync output•Sync. pulse amplitude output•Same socket can be used for 8 Ld EL4581•Low-power CMOS•Detects loss of signal•Resistor programmable scan rate•Few external components•Available in 16 Ld PDIP and 16 Ld SO (0.150”) packages •Pb-free plus anneal available (RoHS compliant) Applications•Video special effects•Video test equipment•Video distribution•Multimedia•Displays•Imaging•Video data capture•Video triggersPinoutOrdering InformationPART NUMBERPARTMARKINGTAPE &REEL PACKAGEPKG.DWG. #EL4583CN EL4583CN-16 Ld PDIP MDP0031 EL4583CS EL4583CS-16 Ld SO (0.150”)MDP0027 EL4583CS-T7EL4583CS7”16 Ld SO (0.150”)MDP0027 EL4583CS-T13EL4583CS13”16 Ld SO (0.150”)MDP0027EL4583CSZ (Note)EL4583CSZ-16 Ld SO (0.150”)(Pb-free)MDP0027EL4583CSZ-T7 (Note)EL4583CSZ7”16 Ld SO (0.150”)(Pb-free)MDP0027EL4583CSZ-T13 (Note)EL4583CSZ13”16 Ld SO (0.150”)(Pb-free)MDP0027NOTE:Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements ofIPC/JEDEC J STD-020.12341615141356712111089FILTER CUT OFFSET DETECT LEVELCOMPOSITE SYNC OUTFILTER INPUTVERTICAL SYNC OUTDIGITAL GNDFILTER OUTPUTCOMPOSITE VIDEO INPUTANALOG GNDHORIZONTAL SYNC OUTVDDODD/EVEN OUTPUTRSET*BURST/BACK PORCH OUTPUTNO SIGNAL DETECT OUTPUTLEVEL OUTPUTEL4583(16 LD SO, PDIP)TOP VIEW*NOTE: R SET must be a 1% registerAbsolute Maximum Ratings (T A = 25°C)V CC Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7V Storage Temperature. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pin Voltages. . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to V CC +0.5V Operating Temperature Range . . . . . . . . . . . . . . . . .-40°C to +85°C Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Curves Die Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .150°CCAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.IMPORTANT NOTE:All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests are at the specified temperature and are pulsed tests, therefore: T J = T C = T ADC Electrical Specifications V DD = 5V, T A = 25°C, R SET = 681kΩ, R F = 22kΩ, R LV = 82kΩPARAMETER DESCRIPTION MIN TYP MAX UNITI DD V DD = 5V (Note 1) 2.54mA Clamp Voltage Pins 4, 8, unloaded 1.3 1.55 1.8V Discharge Current Pins 4, 8, with signal (V IN = 2V)3612µA Discharge Current Pins 4, 8, no signal (Note 2)10µA Clamp Charge Current Pins 4, 8, V IN=1V234mA Ref. Voltage V REF Pin 12, V DD = 5V (Note 3) 1.5 1.752V Filter Reference Voltage, VRF Pin 10.350.50.65V Level Reference Current Pin 2 (Note 4) 1.5 2.5 3.5µAV OL Output Low Voltage I OL = 1.6mA350800mVV OH Output High Voltage I OH = -40µA4VI OH = -1.6mA 2.44V NOTES:1.No video signal, outputs unloaded.2.At loss of signal (pin 10 high) the pull down current source switches to a value of 10µA.3.Tested for V DD 5V ±5%.4.Current sourced from pin 2 is V REF/R SET.Dynamic Specifications R F = 22kΩ, R SET = 681kΩ, V DD = 5V, Video Input = 1V P-P, T A = 25°C, C L = 15pF, I OH = -1.6mA, I OL=1.6mA PARAMETER DESCRIPTION MIN TYP MAX UNIT Horizontal Pulse Width, Pin 15, t H(Note 1) 3.85 6.2µs Vertical Sync Width, Pin 5, t VS(Note 2)195µs Burst/Back Porch Width, Pin 11, t B(Note 1) 2.7 3.7 4.7µs Filter Attenuation F IN = 3.6MHz (Note 3)12dB Comp. Sync Prop. Delay, t CS V IN (Pin 4) - comp sync250400ns Input Dynamic Range p-p NTSC signal0.42V Slice Level Input voltage = 1V P-P405060%V SLICE/V BLANK405060Level Out, Pin 9Input voltage = 1V P-P, pin 4500600700mV Vertical Sync Default Time, t VSD(Note 4)273657µs Loss of Signal Time-Out Pin 10400600800µs Burst/Back Porch Delay, t BD(See Figure 4)250400ns NOTES:1.Width is a function of R SET.2.C/S, vertical, back porch and H are all active low, V OH = 0.8V; vertical is 3H lines wide of NTSC signal.3.Attenuation is a function of R F. See filter typical characteristics.4.Vertical pulse width in absence of serrations on input signal.Pin DescriptionsPINNUMBER PIN NAME PIN FUNCTION1Filter Cut-Off A resistor R F connected between this input and ground determines the input filter characteristic. Increasing R F increases the filter 3.58MHz color burst attenuation. See the typical performance characteristics.2Set DetectLevel A resistor R LV connected between pin 2 and ground determines the value of the minimum signal which triggers the loss of signal output on pin 10. The relationship is V P MIN = 0.75RLV/R SET, where V P MIN is the minimum detected sync pulse amplitude applied to pin 4. See the typical performance characteristics.3CompositeSync OutputThis output replicates all the sync inputs on the input video.4Filter Input The filter is a 3 pole active filter with a gain of 2, designed to produce a constant phase delay of nominally 260ns with signal amplitude. Resistor RF on pin 1 controls the filter cut-off. An internal clamp sets the minimum voltage on pin4 at 1.55V when the input becomes low impedance. Above the clamp voltage, an input current of 1µA charges theinput coupling capacitor. With loss of signal, the current source switches to a value of 10µA, for faster signal recovery.5Vertical SyncOutput The vertical sync output is synchronous with the first serration pulse rising edge in the vertical interval of the input signal and ends on the trailing edge of the first equalizing Output pulse after the vertical interval. It will therefore be slightly more than 3H lines wide.6DigitalGroundThis is the ground return for digital buffer outputs.7Filter Output Output of the active 3 pole filter which has its input on pin 4. It is recommended to ac couple the output to pin 8. 8Video Input This input can be directly driven by the signal if it is desired to bypass the filter, for example, in the case of strong clean signals. This input is 6dB less sensitive than the filter input.9Level Output This pin provides an analog voltage which is nominally equal to twice the sync pulse amplitude of the video input signal applied to pin 4. It therefore provides an indication of signal strength.10No SignalDetectOutput This is a digital output which goes high when either a) loss of input signal or b) the input signal level falls below a predetermined amplitude as set by R LV on pin 2. There will be several horizontal lines delay before the output is initiated.11Burst/BackPorch Output The start of back porch output is triggered on the trailing edge of normal H sync, and on the rising edge of serration pulses in the vertical interval. The pulse is timed out internally to produce a one-shot output. The pulse width is a function of R SET. This output can be used for d.c. restore functions where the back porch level is a known reference.12R SET The current through the resistor R SET determines the timing of the functions within the I.C. These functions include the sampling of the sync pulse 50% point, back porch output and the 2H eliminator. For faster scan rates, the resistorneeds to be reduced inversely. For NTSC 15.7kHz scan rate R SET is 681k 1%. R SET must be a 1% resistor.13Odd/EvenOutput Odd-even output is low for even field and high for odd field. The operation of this circuit has been improved for rejecting spurious noise pulses such as those present in VCR signals.14V DD 5V The internal circuits are designed to have a high immunity to supply variations, although as with most I.C.s a 0.1µF decoupling capacitor is advisable.15HorizontalSync Output This output produces only true H pulses of nominal width 5µs. The leading edge is triggered from the leading edge of the input H sync, with the same prop. delay as the composite sync. The half line pulses present in the input signal during vertical blanking are eliminated with an internal 2H eliminator circuit.16AnalogGroundThis is the ground return for the signal paths in the chips, R SET, R F and R LV.Typical Performance CurvesR SET vsHorizontal Frequency Back Porch ClampOn Time vs R SETVertical Default DelayTime vs R SETFilter 3dB B W vs R F Level Out (Pin 9) vsSync. Tip Amplitude Minimum Signal Detect vs R LVFilter Attenuation vs R F @f = 3.58MHzNote 1: For R LV < 1000kΩ, no signal detect output (pin 10) will default high at minimum signal sensitivity specification, or at complete loss of signal.Typical Performance Curves (Continued)Package Power Dissipation vs Ambient TemperatureJEDEC JESD51-3 Low Effective Thermal Conductivity Test Board1.81.61.41.210.80.60.40.200255075100125150Ambient Temperature (°C)P o w e r D i s s i p a t i o n (W )851.54WPDIP16θJA =81°C/W1.136WSO16 (0.150”)θJA =110°C/W21.81.61.41.210.80.40.20P o w e r D i s s i p a t i o n (W )0.60255075100125150Ambient Temperature (°C)Package Power Dissipation vs Ambient TemperatureJEDEC JESD51-7 High Effective Thermal Conductivity Test Board1.786W 1.563WSO16 (0.150”)θJA =80°C/WPDIP16θJA =70°C/WTiming DiagramNOTES:b. The composite sync output reproduces all the video input sync pulses, with a propagation delay.c. Vertical sync leading edge is coincident with the first vertical serration pulse leading edge, with a propagation delay.d. Odd-even output is low for even field, and high for odd field.e. Back porch goes low for a fixed pulse width on the trailing edge of video input sync pulses. Note that for serration pulses duringvertical, the back porch starts on the rising edge of the serration pulse (with propagation delay).f. Horizontal sync output produces the true “H” pulses of nominal width of 5µs. It has the same delay as the composite sync.FIGURE 1.FIGURE 2.FIGURE 3.Description of OperationA simplified block schematic is shown in Figure 1. The following description is intended to provide the user with sufficient information to understand the effects of theexternal components and signal conditions on the outputs of the integrated circuit.The video signal is AC coupled to pin 4 via the capacitor C 1, nominally 0.1µF. The clamp circuit A1 will prevent the input signal on pin 4 going more negative than 1.5V, the value of reference voltage V R1. Thus the sync tip, the most negative part of the video waveform, will be clamped at 1.5V. The current source I 1, nominally 6µA, charges the coupling capacitor during the remaining portion of the H line,approximately 58µs for a 15.75kHz timebase. From I • t = C • V, the video time-constant can be calculated. It is important to note that the charge taken from the capacitor during videomust be replaced during the sync tip time, which is much shorter, (ratio of x 12.5). The corresponding current torestore the charge during sync will therefore be an order of magnitude higher, and any resistance in series with C I will cause sync tip crushing. For this reason, the internal series resistance has been minimized and external high resistance values in series with the input coupling capacitor should be avoided. The user can exercise some control over the value of the input time constant by introducing an external pull-up resistance from pin 4 to the 5V supply. The maximumvoltage across the resistance will be V DD less 1.5V, for black level. For a net discharge current greater than zero, the resistance should be greater than 450k. This will have the effect of increasing the time constant and reducing the degree of picture tilt. The current source I 1 directly tracks reference current I TR and thus increases with scan rate adjustment, as explained later.FIGURE 4.STANDARD (NTSC INPUT) H. SYNC DETAILAll Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems.Intersil Corporation’s quality certifications can be viewed at /design/qualityIntersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.For information regarding Intersil Corporation and its products, see The signal is processed through an active 3 pole filter (F1) designed for minimum ripple with constant phase delay. The filter attenuates the color burst by 12dB and eliminates fast transient spikes without sync crushing. An external filter is not necessary. The filter also amplifies the video signal by 6dB to improve the detection accuracy. The filter cut-off frequency is controlled by an external resistor from pin 1 to ground.Internal reference voltages (block V REF ) with high immunity to supply voltage variation are derived on the chip.Reference V R4 with op-amp A2 forces pin 12 to a reference voltage of 1.7V nominal. Consequently, it can be seen that the external resistance R SET will determine the value of the reference current I TR . The internal resistance R3 is only about 6k Ω, much less than R SET . All the internal timing functions on the chip are referenced to I TR and have excellent supply voltage rejection.To improve noise immunity, the output of the 3 pole filter is brought out to pin 7. It is recommended to AC couple the output to pin 8, the video input pin. In case of strong clean video signal, the video input pin, pin 8, can be driven by the signal directly.Comparator C2 on the input to the sample and hold block (S/H) compares the leading and trailing edges of the sync. pulse with a threshold voltage V R2 which is referenced at a fixed level above the clamp voltage V R1. The output of C2 initiates the timing one-shots for gating the sample and hold circuits. The sample of the sync tip is delayed by 0.8µs to enable the actual sample of 2µs to be taken on the optimum section of the sync. pulse tip. The acquisition time of the circuit is about three horizontal lines. The double poly CMOS technology enables long time constants to be achieved with small high quality on-chip capacitors. The back porch voltage is similarly derived from the trailing edge of sync, which also serves to cut off the tip sample if the gate time exceeds the tip period. Note that the sample and hold gating times will track R SET through I OT .The 50% level of the sync tip is derived through the resistor divider R1 and R2, from the sample and held voltages V TIP and V BP and applied to the plus input of comparator C1. This comparator has built in hysteresis to avoid falsetriggering. The output of C2 is a digital 5V signal which feeds the C/S output buffer B1, the vertical, back porch and odd/even functions.The vertical circuit senses C/S edges and initiates an integrator which is reset by the shorter horizontal sync pulses but times out with the longer vertical sync. pulsewidths. The internal timing circuits are referenced to I OT and V R3, the time-out period being inversely proportional to the timing current. The vertical output pulse is started on the first serration pulse in the vertical interval and is then self-timed out. In the absence of a serration pulse, an internal timer will default the start of vertical.The horizontal circuit senses C/S edges and produces the true horizontal pulses of nominal width 5µs. The leading edge is triggered from the leading edge of the input H sync, with the same prop. delay as composite sync. The half line pulses present in the input signal during vertical blanking are removed with an internal 2H eliminator circuit. The 2Heliminator initiates a time out period after a horizontal pulse is generated. The time out period is a function of I OT which is set by R SET .The back porch is triggered from the sync tip trailing edge and initiates a one-shot pulse. The period of this pulse is again a function of I OT and will therefore track the scan rate set by RESET.The odd/even circuit (O/E) tracks the relationship of the horizontal pulses to the leading edge of the vertical output and will switch on every field at the start of vertical. Pin 13 is high during an odd field.Loss of video signal can be detected by monitoring the No Signal Detect Output pin 10. The VTIP voltage held by the sample and hold is compared with a voltage level set by R LV on pin 2. Pin 10 output goes high when the VTIP falls below R LV set value.VTIP voltage is also passed through an amplifier with gain of 2 and buffed to pin 9. This provides an indication of signal strength. This signal (Level Output) can be used for AGC applications.Block Diagram* NOTE: R SET must be a 1% resistor.FIGURE 5.STANDARD (NTSC INPUT) H. SYNC DETAIL。