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ADS7865 Datasheet Analog-to-Digital Converter

Manufacturer: Texas Instruments

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General Description

The ADS7865 is a dual, 12-bit, 2MSPS analog-todigital converter (ADC) with four fully differential or six pseudo-differential input channels grouped into two pairs for high-speed, simultaneous signal acquisition.

Inputs to the sample-and-hold (S/H) amplifiers are fully differential and are maintained differentially to the input of the ADC.

This architecture provides excellent common-mode rejection of 72dB at 100kHz, which is a critical performance characteristic in noisy environments.

Overview

ADS7865 www.ti.com SBAS441C – OCTOBER 2008 – REVISED APRIL 2012 Dual, 12-Bit, 3+3 or 2+2 Channel, Simultaneous Sampling Analog-to-Digital Converter Check for Samples:.

Key Features

  • 1.
  • 2 Six Pseudo- or Four Fully Differential Inputs.
  • SNR: 71.7dB, THD:.
  • 87dB.
  • Programmable Channel Sequencer.
  • Programmable and Buffered Internal 2.5V Reference.
  • Flexible Power-Down Features.
  • Variable Power-Supply Ranges: 2.7V to 5.5V.
  • Low-Power Operation: 44mW Maximum at 5V.
  • Operating Temperature Range:.
  • 40°C to +125°C.
  • Pin-Compatible Upgrade for the ADS7862.

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