ADS830中文资料

Referred to Full Scale
Referred to Full Scale
NTSC, PAL NTSC, PAL Input Tied to Common-Mode
DIGITAL INPUTS
Logic Family Convert Command High Level Input Current(5) (VIN = 5V) Low Level Input Current (VIN = 0V) High Level Input Voltage
ADS830E
PARAMETER
DIFFERENTIAL ANALOG INPUT q PROGRAMMABLE INPUT RANGE:
1Vp-p /2Vp-p q LOW POWER: 170mW q LOW DNL: 0.2LSB q SINGLE +5V SUPPLY OPERATION q 20-PIN SSOP PACKAGE
100 10 +2.4 +1.0 5
CMOS/TTL Compatible Straight Offset Binary
+0.1 +0.2 +4.9 +4.8 +0.1 +2.8 5
–2.5 –2.5
REFB + 0.8 1.25
±0.25 ±53 ±0.3 ±75 58 ±10 ±10 3.0
2.0
2Vp-p 1Vp-p 2Vp-p
–3dBFS
CONVERSION CHARACTERISTICS Sample Rate Data Latency
DYNAMIC CHARACTERISTICS Differential Linearity Error (Largest Code Error)
f = 1MHz f = 10MHz No Missing Codes Integral Nonlinearity Error, f = 1MHz Spurious Free Dynamic Range(1) f = 1MHz (–1dB input) f = 10MHz (–1dB input) Two-Tone Intermodulation Distortion(3) f = 9.5MHz and 9.9MHz (–7dB each tone) Signal-to-Noise Ratio (SNR) f = 1MHz f = 10MHz Signal-to-(Noise + Distortion) (SINAD) f = 1MHz f = 10MHz Effective Number of Bits(4), f = 1MHz Differential Gain Error Differential Phase Error Output Noise Aperture Delay Time Aperture Jitter Overvoltage Recovery Time Full-Scale Step Acquisition Time
©1998 Burr-Brown Corporation
PDS-1429B
Printed in U.S.A. October, 1998
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SPECIFICATIONS
At TA = full specified temperature range, single-ended input range = 1.5V to 3.5V, sampling rate = 60MHz, and external reference, unless otherwise noted.
External REFT Voltage Range
External REFB Voltage Range
Reference Input Resistance
REFT to REFB
8 Guaranteed –40 to +85
1.5
3.5
2

3
2.5
2
3
1
1.25 || 5
300
10k
60M
4
Bits °C
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®
ADS830 ¤
ADS830
TM 8-Bit, 60MHz Sampling ANALOG-TO-DIGITAL CONVERTER
FEATURES
q HIGH SNR: 49.5dB q INTERNAL /EXTERNAL REFERENCE
OPTION q SINGLE-ENDED OR
Low Level Input Voltage
Input Capacitance
Start Conversion
DIGITAL OUTPUTS
Logic Family
Logic Coding
Low Output Voltage (IOL = 50µA) Low Output Voltage, (IOL = 1.6mA) High Output Voltage, (IOH = 50µA) High Output Voltage, (IOH = 0.5mA) Low Output Voltage, (IOL = 50µA) High Output Voltage, (IOH = 50µA) Output Capacitance
APPLICATIONS
q MEDICAL IMAGING q VIDEO DIGITIZING q COMMUNICATIONS q DISK-DRIVE CONTROL
DESCRIPTION
The ADS830 is a pipeline, CMOS analog-to-digital converter that operates from a single +5V power supply. This converter provides excellent performance with a singleended input and can be operated with a differential input for added spurious performance. This high performance converter includes an 8-bit quantizer, high bandwidth track/hold, and a high accuracy internal reference. It also allows for the user to disable the internal reference and utilize external references. This external reference option provides excellent gain and offset matching when used in multi-channel applications or in applications where DC full scale range adjustment is required.
%FS ppm/°C
dB mV mV V V kΩ
®
ADS830
2
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SPECIFICATIONS
At TA = full specified temperature range, single-ended input range = 1.5V to 3.5V, sampling rate = 60MHz, and external reference, unless otherwise noted.
+VS ADS830
CLK
Timing Circuitry
VDRV
VIN
IN
T/H
IN
(Opt)
8-Bit Pipelined A/D Core
Error Correction
Logic
D0
3-State Outputs
•••
D7
Internal Reference
Optional External Int/Ext Reference
VDRV = 5V VDRV = 3V
ACCURACY (External Reference, 2Vp-p, Unless Otherwise Noted)
Zero Error (Referred to –FS)
at 25°C
Zero Error Drift (Referred to –FS)
Gain Error(6)
V V V V µA MΩ || pF MHz
Samples/s Clk Cyc
±0.1
±1.0
±0.2
Guaranteed
±0.3
±1.5
67
54
65
–60
49.5
47
49.5
48
45
48
7.7
0.2
0.2
0.2
3
1.2
2
2.5
CMOS/TTL Compatible Rising Edge of Convert Clock
at 25°C
Gain Error Drift(6)
Power Supply Rejection of Gain Internal REFT Tolerance
∆ VS = ±5% Deviation from Ideal 3.0V
Internal REFB Tolerance
Deviation from Ideal 2.0V
ADS830E
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RESOLUTION