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Product details

Parameters

Sample rate (Max) (MSPS) 80 Resolution (Bits) 8 Number of input channels 1 Interface Parallel CMOS Analog input BW (MHz) 300 Features Low Power Rating Catalog Input range (Vp-p) 1, 2 Power consumption (Typ) (mW) 310 Architecture Pipeline SNR (dB) 49 ENOB (Bits) 7.8 SFDR (dB) 68 Operating temperature range (C) -40 to 85 Input buffer No open-in-new Find other High-speed ADCs (>10MSPS)

Package | Pins | Size

SSOP (DBQ) 20 52 mm² 8.65 x 6 open-in-new Find other High-speed ADCs (>10MSPS)

Features

  • HIGH SNR: 49dB
  • INTERNAL OR EXTERNAL REFERENCE OPTION
  • SINGLE-ENDED OR DIFFERENTIAL ANALOG INPUT
  • PROGRAMMABLE INPUT RANGE: 1Vp-p /2Vp-p
  • LOW POWER: 275mW
  • LOW DNL: 0.35LSB
  • SINGLE +5V SUPPLY OPERATION
  • SSOP-20 PACKAGE
  • APPLICATIONS
    • MEDICAL IMAGING
    • VIDEO DIGITIZING
    • COMPUTER SCANNERS
    • COMMUNICATIONS
    • DISK-DRIVE CONTROL
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Description

The ADS831 is a pipeline, CMOS Analog-to-Digital (A/D) converter that operates from a single +5V power supply. This converter provides excellent performance with a single-ended 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. The ADS831 employs digital error correction techniques to provide excellent differential linearity for demanding imaging applications. Its low distortion and high SNR give the extra margin needed for medical imaging, communications, video, and test instrumentation.

The ADS831 is specified at a maximum sampling frequency of 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 compatible with the 8-bit, 60MHz ADS830.

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Technical documentation

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Type Title Date
* Datasheet ADS831: SpeedPlus? 8-Bit, 80MHz Sampling Analog-To-Digital Converter datasheet (Rev. A) Feb. 23, 2001
Application notes Driving High-Speed ADCs: Circuit Topologies and System-Level Parameters (Rev. A) Sep. 10, 2010
Application notes Smart Selection of ADC/DAC Enables Better Design of Software-Defined Radio Apr. 28, 2009
Application notes CDCE62005 as Clock Solution for High-Speed ADCs Sep. 04, 2008
Application notes CDCE72010 as a Clocking Solution for High-Speed Analog-to-Digital Converters Jun. 08, 2008
Application notes Phase Noise Performance and Jitter Cleaning Ability of CDCE72010 Jun. 02, 2008

Design & development

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Design tools & simulation

CALCULATION TOOLS Download
Jitter and SNR Calculator for ADCs
JITTER-SNR-CALC JITTER-SNR-CALC can be used for calculating theoretical Signal to Noise (SNR) performance of ADCs based on input frequency and clock jitter.

CAD/CAE symbols

Package Pins Download
SSOP (DBQ) 20 View options

Ordering & quality

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