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ADS8665 - SAR ADC

Download the ADS8665 datasheet PDF. This datasheet also covers the ADS8661 variant, as both devices belong to the same sar adc family and are provided as variant models within a single manufacturer datasheet.

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.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (ADS8661-etcTI.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Texas Instruments

Part Number Description
ADS8661 SAR ADC
ADS8664 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.

View original datasheet text
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.