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Home » NEWEST Products » New by Manufacturer » Texas Instruments » ADS1131 18-bit ADC / ADS1131REF Eval Module - TI
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Texas Instruments ADS1131 18-bit ADC /  ADS1131REF Eval Module
Texas Instruments ADS1131 18-bit ADC /  ADS1131REF Eval Module

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Texas Instruments ADS1131 18-bit ADC / ADS1131REF Eval Module

Texas Instruments ADS1131 18-bit Analog-to-Digital Converter for Bridge Sensors is a precision delta-sigma ADC provides a complete front-end solution for bridge sensor applications, including weigh scales, strain gauges, and load cells. The TI ADS1131 features an onboard low-noise amplifier with a gain of 64, supporting a full-scale differential input of ±39mV. The ADS1131 delta-sigma ADC has 18-bit effective resolution and is comprised of a third-order modulator and fourth-order digital filter. Two data rates are supported: 10SPS (with both 50Hz and 60Hz rejection) and 80SPS. The TI ADS1131 can be put into a low-power standby mode or shut off completely in power-down mode. The TI ADS1131REF Evaluation Module is a circuit board designed to feature the ADS1131. The board contains the entire circuitry and user interface needed for a weigh-scale digitizer. It is suitable for the general evaluation of the ADS1131.

ADS1131 Features
  • Complete Front-End for Bridge Sensors
  • Available in an SO Package
  • Internal Amplifier, Gain of 64
  • Internal Oscillator
  • Low-Side Power Switch for Bridge Sensor
  • 18-Bit Noise-Free Resolution
  • Selectable 10SPS or 80SPS Data Rates
  • Simultaneous 50Hz and 60Hz Rejection at 10SPS
  • External Voltage Reference up to 5V for Ratiometric Measurements
  • Simple, Pin-Driven Control
  • Two-Wire Serial Digital Interface
  • Supply Range: 3V to 5.3V
  • -40°C to +85°C Temperature Range
Applications
  • Weigh Scales
  • Strain Gauges
  • Load Cells
  • Industrial Process Control

Functional Diagram
Functional Diagram
ADS1131REF Features
  • USB connection for firmware updates and remote control
  • Power is applied by either a 9V battery or wall plug 9V adapter
  • Connections for load cells and other voltage sources
  • Designed for very low power consumption
  • Eight-digit starburst LCD readout
Applications
  • Weigh Scales
  • Strain Gauges
  • Load Cells
  • Industrial Process Control

ADS1131REF Controls and Connectors
ADS1131REF Controls and Connectors
  • Texas Instruments
  • Industrial|Sensing
  • Semiconductors|Integrated Circuits|IC-Data Conversion