Texas Instruments ADS831 User's Manual
Summary
This datasheet from Texas Instruments covers the ADS831 8-bit 80 MHz sampling analog-to-digital converter featuring a pipelined CMOS architecture operating from a single 5 V supply with only 275 mW power consumption. The device achieves a signal-to-noise ratio of 49 dB with 0.35 LSB differential nonlinearity, and supports both internal and external reference options with programmable 1 V peak-to-peak or 2 V peak-to-peak input ranges for single-ended or differential analog inputs. Packaged in an
Page 1 Text Content
ADS831
ADS831
SBAS087A – MAY 2001
8-Bit, 80MHz Sampling TM
ANALOG-TO-DIGITAL CONVERTER
FEATURES DESCRIPTION HIGH SNR: 49d B The ADS831 is a pipeline, CMOS Analog-to-Digital (A/D) con-
INTERNAL OR EXTERNAL REFERENCE verter that operates from a single +5V power supply. This con- verter provides excellent performance with a single-ended input
OPTION
and can be operated with a differential input
SINGLE-ENDED OR
for added spurious performance. This high performance converter
DIFFERENTIAL ANALOG INPUT
includes an 8-bit quantizer, high bandwidth
PROGRAMMABLE INPUT RANGE: track/hold, and a high accuracy internal reference. It also allows for 1Vp-p /2Vp-p the user to disable the internal reference and utilize external
references. This external reference option provides excellent gain
LOW POWER: 275m W
and offset matching when used in multi-channel applications or in
LOW DNL: 0.35LSB
applications where DC full scale range adjustment is required.
SINGLE +5V SUPPLY OPERATION
The ADS831 employs digital error correction techniques to pro-
SSOP-20 PACKAGE vide excellent differential linearity for demanding imaging appli-
cations. Its low distortion and high SNR give the extra margin needed for medical imaging, communications, video, and test
APPLICATIONS
instrumentation.
MEDICAL IMAGING
The ADS831 is specified at a maximum sampling frequency of VIDEO DIGITIZING 80MHz and a single-ended input range of 1.5V to 3.5V. The ADS831 is available in an SSOP-20 package and is pin-for-pin
COMPUTER SCANNERS
compatible with the 8-bit, 60MHz ADS830.
COMMUNICATIONS DISK-DRIVE CONTROL
+VS CLK VDRV
ADS831
Timing Circuitry
INVIN 8-Bit Error D0
3-State ••
Pipelined Correction
Outputs T/H
IN A/D Core Logic D7
(Opt)
Internal Reference
Int/Ext
Optional External Reference
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Copyright © 1998, Texas Instruments Incorporated Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
www.ti.com
Page Summary Contents For Texas Instruments ADS831 User's Manual
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 13 |
| File Size | 234.96 KB |
| Published | June 20, 2026 |
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Frequently Asked Questions
What power supply voltage does the ADS831 require?
The device operates from a single +5V power supply.
Does this converter support both single-ended and differential inputs?
Yes, it supports both single-ended or optional differential analog input options.
Is the ADS831 compatible with older models like the ADS830?
The ADS831 is pin-for-pin compatible with the 8-bit, 60MHz ADS830.
What are the electrostatic discharge (ESD) limitations for this IC?
Logic Input and Analog Input must be handled between –0.3V to (+V + 0.3V) depending on the specific terminals.