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ADS1231 - 24-Bit Analog-to-Digital Converter

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General Description

The ADS1231 is a precision, 24-bit analog-to-digital converter (ADC).

With an onboard low-noise amplifier, onboard oscillator, precision third-order 24bit delta-sigma (ΔΣ) modulator, and bridge power switch, the ADS1231 provides a complete front-end solution for bridge sensor applications including weigh scales, strain gauges, and load cells.

The low-noise amplifier has a gain of 128, supporting a full-scale differential input of ±19.5mV.

Overview

ADS1231 www.ti.com SBAS414D – JULY 2009 – REVISED OCTOBER 2013 24-Bit Analog-to-Digital Converter for Bridge Sensors Check for Samples:.

Key Features

  • 1.
  • 2 Complete Front-End for Bridge Sensors.
  • Internal Amplifier, Gain of 128.
  • Internal Oscillator.
  • Low-Side Power Switch for Bridge Sensor.
  • Low Noise: 35nVrms.
  • Selectable Data Rates: 10SPS or 80SPS.
  • Simultaneous 50Hz and 60Hz Rejection at 10SPS.
  • Input EMI Filter.
  • External Voltage Reference up to 5V for Ratiometric Measurements.
  • Simple, Pin-Driven Control.
  • Two-Wire Serial Digital Interface.
  • S.

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