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ADS8661 - SAR ADC

General Description

The ADS8661 and ADS8665 belong to a family of integrated data acquisition system based on a successive approximation (SAR) analog-to-digital converter (ADC).

Key Features

  • 12-bit ADC with integrated analog front-end.
  • High speed:.
  • ADS8661: 1.25 MSPS.
  • ADS8665: 500 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 overvol.

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Other Datasheets by Texas Instruments

Part Number Description
ADS8664 SAR ADC
ADS8665 SAR ADC
ADS8668 SAR ADC
ADS8634 SAR Analog-to-Digital Converter
ADS8638 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.

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www.ti.com ADS8661, ADS8665 SBAS780B – DECEMBER 2016A– DRESV8IS6E6D1,MAARDCSH82606251 SBAS780B – DECEMBER 2016 – REVISED MARCH 2021 ADS866x 12-Bit, High-Speed, Single-Supply, SAR ADC Data Acquisition System With Programmable, Bipolar Input Ranges 1 Features • 12-bit ADC with integrated analog front-end • High speed: – ADS8661: 1.25 MSPS – ADS8665: 500 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: ±0.1 LSB; INL: ±0.