DAC1022资料
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g 25V VREF to Gnd Digital Input Voltage Range V a to Gnd b 100 mV to V a DC Voltage at Pin 1 or Pin 2 (Note 3) b 65 C to a 150 C Storage Temperature Range Lead Temperature (Soldering 10 sec ) Dual-In-Line Package (plastic) 260 C Dual-In-Line Package (ceramic) 300 C
C1996 National Semiconductor Corporation
TL H 5689
RRD-B30M96 Printed in U S A
http
www national com
元器件交易网
Absolute Maximum Ratings (Note 5)
General Description
The DAC1020 and the DAC1220 are respectively 10 and 12-bit binary multiplying digital-to-analog converters A deposited thin film R-2R resistor ladder divides the reference current and provides the circuit with excellent temperature tracking characteristics (0 0002% C linearity error temperature coefficient maximum) The circuit uses CMOS current switches and drive circuitry to achieve low power consumption (30 mW max) and low output leakages (200 nA max) The digital inputs are compatible with DTL TTL logic levels as well as full CMOS logic level swings This part combined with an external amplifier and voltage reference can be used as a standard D A converter however it is also very attractive for multiplying applications (such as digitally controlled gain blocks) since its linearity error is essentially independent of the voltage reference All inputs are protected from damage due to static discharge by diode clamps to V a and ground This part is available with 10-bit (0 05%) 9-bit (0 10%) and 8-bit (0 20%) non-linearity guaranteed over temperature (note 1 of electrical characteristics) The DAC1020 DAC1021 and DAC1022 are direct replacements for the 10bit resolution AD7520 and AD7530 and equivalent to the AD7533 family The DAC1220 and DAC1222 are direct replacements for the 12-bit resolution AD7521 and AD7531 family
Features
Y Y Y Y Y Y Y Y Y Y
Linearity specified with zero and full-scale adjust only Non-linearity guaranteed over temperature Integrated thin film on CMOS structure 10-bit or 12-bit resolution Low power dissipation 10 mW 15V typ Accepts variable or fixed reference b25VsVREFs25V 4-quadrant multiplying capability Interfaces directly with DTL TTL and CMOS Fast settling time 500 ns typ Low feedthrough error LSB 100 kHz typ
b 40 C to a 85 C b 40 C to 85 C
DAC1020LCV
DAC1020LIV
V20A
DAC1220LCJ DAC1222LCJ
AD7521LD AD7531LD AD7521JD AD7531JD J18A
Package Outline
Note Devices may be ordered by either part number
10-BIT D A CONVERTERS 0 C to 70 C AD7520LN AD7530LN AD7520KN AD7530KN AD7520JN AD7530JN N16A 12-BIT D A CONVERTERS 0 C to 70 C AD7521LN AD7531LN AD7521JN AD7531JN N18A
元器件交易网
DAC1020 DAC1021 DAC1022 10-Bit Binary Multiplying D A Converter DAC1220 DAC1222 12-Bit Binary Multiplying D A Converter
May 1996
DAC1020 DAC1021 DAC1022 10-Bit Binary Multiplying D A Converter DAC1220 DAC1222 12-Bit Binary Multiplying D A Converter
b 10V s VREF s a 10V (Notes 1 and 2) b 10V s VREF s a 10V (Notes 1 and 2)
10
10-Bit Parts 9-Bit Parts 8-Bit Parts Linearity Error Tempco Full-Scale Error Full-Scale Error Tempco Output Leakage Current IOUT 1 IOUT 2 Power Supply Sensitivity
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications V a to Gnd 17V
0 05 0 10 0 20 0 0002 03 10 0 001 03
0 05 0 10 0 20 0 0002 10 0 001
% FSR % FSR % FSR % FS C % FS % FS C
TMINkTAkTMAX (Note 2) TMINsTAsTMAX All Digital Inputs Low All Digital Inputs High All Digital Inputs High 14VsV a s16V (Note 2) (Figure 2) 10 RL e 100X from 0 to 99 95% FS All Digital Inputs Switched Simultaneously All Digital Inputs Low VREF e 20 Vp-p 100 kHz J Package (Note 4) N Package All Digital Inputs Low All Digital Inputs High All Digital Inputs Low All Digital Inputs High 0 005
a 85 a 70 a 70 a 70
C C C C
0 0 0
ESD Susceptibility (Note 4)
800V VREF e 10 000V TA e 25 C unless otherwise specified) DAC1020 DAC1021 DAC1022 Min Typ Max DAC1220 DAC1222 Min 12 Typ Max Bits Units
200 200 0 005
200 200
nA nA % FS V
VREF Input Resistance Full-Scale Current Settling Time
15
20
10
40 200 200 40 9 5
500 10 6 2 40 200 200 40 9 5
ns mVp-p mVp-p mVp-p pF pF pF pF
VREF Feedthrough
Output Capacitance IOUT 1 IOUT 2
http
www national com
2
元器件交易网
Electrical Characteristics
Parameter
Equivalent Circuit
Note Switches shown in digital high state
TL H 5689 – 1
Ordering Information
Temperature Range NonLinearity 0 05% 0 10% 0 20% Package Outline Temperature Range NonLinearity 0 05% 0 20% DAC1220LCN DAC1222LCN DAC1020LCN DAC1021LCN DAC1022LCN
Electrical Characteristics (V a e 15V
Parameter Conditions
Resolution Linearity Error TMINkTAkTMAX b 10V k VREF k a 10V (Note 1) End Point Adjustment Only (See Linearity Error in Definition of Terms) DAC1020 DAC1220 DAC1021 DAC1022 DAC1222
Operating Ratings
Min Temperature (TA) DAC1020LIV DAC1220LCJ DAC1222LCJ DAC1020LCN DAC1020LCV DAC1021LCN DAC1022LCN DAC1220LCN DAC1222LCN Max Units
b 40
(V a e 15V VREF e 10 000V TA e 25 C unless otherwise specified) (Continued) DAC1020 DAC1021 DAC1022 Min Typ Max 08 24 1
b 50
Conditions
DAC1220 DAC1222 Min Typ Max 08 24
C1996 National Semiconductor Corporation
TL H 5689
RRD-B30M96 Printed in U S A
http
www national com
元器件交易网
Absolute Maximum Ratings (Note 5)
General Description
The DAC1020 and the DAC1220 are respectively 10 and 12-bit binary multiplying digital-to-analog converters A deposited thin film R-2R resistor ladder divides the reference current and provides the circuit with excellent temperature tracking characteristics (0 0002% C linearity error temperature coefficient maximum) The circuit uses CMOS current switches and drive circuitry to achieve low power consumption (30 mW max) and low output leakages (200 nA max) The digital inputs are compatible with DTL TTL logic levels as well as full CMOS logic level swings This part combined with an external amplifier and voltage reference can be used as a standard D A converter however it is also very attractive for multiplying applications (such as digitally controlled gain blocks) since its linearity error is essentially independent of the voltage reference All inputs are protected from damage due to static discharge by diode clamps to V a and ground This part is available with 10-bit (0 05%) 9-bit (0 10%) and 8-bit (0 20%) non-linearity guaranteed over temperature (note 1 of electrical characteristics) The DAC1020 DAC1021 and DAC1022 are direct replacements for the 10bit resolution AD7520 and AD7530 and equivalent to the AD7533 family The DAC1220 and DAC1222 are direct replacements for the 12-bit resolution AD7521 and AD7531 family
Features
Y Y Y Y Y Y Y Y Y Y
Linearity specified with zero and full-scale adjust only Non-linearity guaranteed over temperature Integrated thin film on CMOS structure 10-bit or 12-bit resolution Low power dissipation 10 mW 15V typ Accepts variable or fixed reference b25VsVREFs25V 4-quadrant multiplying capability Interfaces directly with DTL TTL and CMOS Fast settling time 500 ns typ Low feedthrough error LSB 100 kHz typ
b 40 C to a 85 C b 40 C to 85 C
DAC1020LCV
DAC1020LIV
V20A
DAC1220LCJ DAC1222LCJ
AD7521LD AD7531LD AD7521JD AD7531JD J18A
Package Outline
Note Devices may be ordered by either part number
10-BIT D A CONVERTERS 0 C to 70 C AD7520LN AD7530LN AD7520KN AD7530KN AD7520JN AD7530JN N16A 12-BIT D A CONVERTERS 0 C to 70 C AD7521LN AD7531LN AD7521JN AD7531JN N18A
元器件交易网
DAC1020 DAC1021 DAC1022 10-Bit Binary Multiplying D A Converter DAC1220 DAC1222 12-Bit Binary Multiplying D A Converter
May 1996
DAC1020 DAC1021 DAC1022 10-Bit Binary Multiplying D A Converter DAC1220 DAC1222 12-Bit Binary Multiplying D A Converter
b 10V s VREF s a 10V (Notes 1 and 2) b 10V s VREF s a 10V (Notes 1 and 2)
10
10-Bit Parts 9-Bit Parts 8-Bit Parts Linearity Error Tempco Full-Scale Error Full-Scale Error Tempco Output Leakage Current IOUT 1 IOUT 2 Power Supply Sensitivity
If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications V a to Gnd 17V
0 05 0 10 0 20 0 0002 03 10 0 001 03
0 05 0 10 0 20 0 0002 10 0 001
% FSR % FSR % FSR % FS C % FS % FS C
TMINkTAkTMAX (Note 2) TMINsTAsTMAX All Digital Inputs Low All Digital Inputs High All Digital Inputs High 14VsV a s16V (Note 2) (Figure 2) 10 RL e 100X from 0 to 99 95% FS All Digital Inputs Switched Simultaneously All Digital Inputs Low VREF e 20 Vp-p 100 kHz J Package (Note 4) N Package All Digital Inputs Low All Digital Inputs High All Digital Inputs Low All Digital Inputs High 0 005
a 85 a 70 a 70 a 70
C C C C
0 0 0
ESD Susceptibility (Note 4)
800V VREF e 10 000V TA e 25 C unless otherwise specified) DAC1020 DAC1021 DAC1022 Min Typ Max DAC1220 DAC1222 Min 12 Typ Max Bits Units
200 200 0 005
200 200
nA nA % FS V
VREF Input Resistance Full-Scale Current Settling Time
15
20
10
40 200 200 40 9 5
500 10 6 2 40 200 200 40 9 5
ns mVp-p mVp-p mVp-p pF pF pF pF
VREF Feedthrough
Output Capacitance IOUT 1 IOUT 2
http
www national com
2
元器件交易网
Electrical Characteristics
Parameter
Equivalent Circuit
Note Switches shown in digital high state
TL H 5689 – 1
Ordering Information
Temperature Range NonLinearity 0 05% 0 10% 0 20% Package Outline Temperature Range NonLinearity 0 05% 0 20% DAC1220LCN DAC1222LCN DAC1020LCN DAC1021LCN DAC1022LCN
Electrical Characteristics (V a e 15V
Parameter Conditions
Resolution Linearity Error TMINkTAkTMAX b 10V k VREF k a 10V (Note 1) End Point Adjustment Only (See Linearity Error in Definition of Terms) DAC1020 DAC1220 DAC1021 DAC1022 DAC1222
Operating Ratings
Min Temperature (TA) DAC1020LIV DAC1220LCJ DAC1222LCJ DAC1020LCN DAC1020LCV DAC1021LCN DAC1022LCN DAC1220LCN DAC1222LCN Max Units
b 40
(V a e 15V VREF e 10 000V TA e 25 C unless otherwise specified) (Continued) DAC1020 DAC1021 DAC1022 Min Typ Max 08 24 1
b 50
Conditions
DAC1220 DAC1222 Min Typ Max 08 24