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ADS8691 - SAR ADC

General Description

The ADS8691, ADS8695, and ADS8699 belong to a family of integrated data acquisition system based on a successive approximation (SAR) analog-to-digital converter (ADC).

Key Features

  • 18-bit ADC with integrated analog front-end.
  • High speed:.
  • ADS8691: 1 MSPS.
  • ADS8695: 500 kSPS.
  • ADS8699: 100 kSPS.
  • Software programmable input ranges:.
  • Bipolar ranges: ±12.288 V, ±10.24 V, ±6.144 V, ±5.12 V, and ±2.56 V.
  • Unipolar ranges: 0 V.
  • 12.288 V, 0 V.
  • 10.24 V, 0 V.
  • 6.144 V, and 0 V.
  • 5.12 V.
  • 5-V analog supply: 1.65-V to 5-V I/O supply.
  • Constant resistive input impedance ≥ 1 M.

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Other Datasheets by Texas Instruments

Part Number Description
ADS8694 SAR ADC
ADS8695 SAR ADC
ADS8698 SAR ADC
ADS8699 SAR ADC
ADS8634 SAR Analog-to-Digital Converter

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
www.ti.com ADS8691, ADS8695, ADS8699 SBAS777B – DECAEMDBSE8R629011,6A– DRESV8IS6E9D5,MAARDCSH82609291 SBAS777B – DECEMBER 2016 – REVISED MARCH 2021 ADS869x 18-Bit, High-Speed, Single-Supply, SAR ADC Data Acquisition System With Programmable, Bipolar Input Ranges 1 Features • 18-bit ADC with integrated analog front-end • High speed: – ADS8691: 1 MSPS – ADS8695: 500 kSPS – ADS8699: 100 kSPS • Software programmable input ranges: – Bipolar ranges: ±12.288 V, ±10.24 V, ±6.144 V, ±5.12 V, and ±2.56 V – Unipolar ranges: 0 V–12.288 V, 0 V–10.24 V, 0 V–6.144 V, and 0 V–5.12 V • 5-V analog supply: 1.65-V to 5-V I/O supply • Constant resistive input impedance ≥ 1 MΩ • Input overvoltage protection: up to ±20 V • On-chip, 4.096-V reference with low drift • Excellent performance: – DNL: ±0.