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Texas Instruments ADS112U04 16-Bit Analog-to-Digital Converter (ADC)

Texas Instruments ADS112U04 16-Bit Analog-to-Digital Converter (ADC) offers many integrated features to reduce system cost and component count in applications measuring small sensor signals. The device features two differential or four single-ended inputs through a flexible input multiplexer (MUX) and a low-noise, programmable gain amplifier (PGA). The ADS112U04 includes two programmable excitation current sources, a voltage reference, an oscillator, and a precision temperature sensor.

The device can perform conversions at data rates up to 2000 samples-per-second (SPS) with single-cycle settling. At 20SPS, the digital filter offers simultaneous 50Hz and 60Hz rejection for noisy industrial applications. The internal PGA offers gains up to 128. This PGA makes the Texas Instruments ADS112U04 ideal for applications measuring small sensor signals, such as resistance temperature detectors (RTDs), thermocouples, thermistors, and resistive bridge sensors.

Features

  • Current consumption is as low as 315µA (typ.)
  • 2.3V to 5.5V wide supply range 
  • 1 to 128 programmable gain 
  • Up to 2kSPS programmable data rates 
  • 16-bit, noise-free resolution at 20SPS
  • Simultaneous 50Hz and 60Hz rejection at 20SPS with single-cycle settling digital filter
  • Dual-matched programmable current sources
    • 10µA to 1.5mA
  • Two differential or four single-ended inputs
  • 5ppm/°C (typ.) drift internal 2.048V reference 
  • Internal 2% accurate oscillator
  • Internal temperature sensor
  • 0.5°C (typ.) accuracy
  • Three general-purpose inputs/outputs
  • 2-wire UART compatible interface (8-N-1 format) with baud rates up to 120kbaud and auto-baud-rate detection
  • 5.00mm × 4.40mm TSSOP-16 package

Applications

  • Sensor transducers and transmitters
  • Temperature, pressure, strain, flow
  • PLC and DCS analog input modules
  • Temperature controllers
  • Climate chambers, industrial ovens
  • Patient monitoring systems
  • Body temperature, blood pressure

Functional Block Diagram

Block Diagram - Texas Instruments ADS112U04 16-Bit Analog-to-Digital Converter (ADC)

Related Development Tool

Texas Instruments ADS112U04EVM ADC Evaluation Module (EVM)

Platform for evaluation of the ADS112U04, aa 16-bit, 2-kSPS, 4-channel, low-power Delta-Sigma ADC.

Learn Moreabout Texas Instruments ADS112U04EVM ADC Evaluation Module (EVM) View Productsrelated to Texas Instruments ADS112U04EVM ADC Evaluation Module (EVM)
Published: 2018-03-06 | Updated: 2022-11-01