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Texas Instruments ADS124S0x Low-Power Analog-to-Digital Converters

Texas Instruments ADS124S0x Low-Power Analog-to-Digital Converters (ADCs) are precision, 24-bit, delta-sigma (ΔΣ), ADCs with low power consumption. The ADS124S0x feature many integrated features to reduce system cost and component count in applications measuring small-signal sensors.

These Texas Instruments ADCs feature configurable digital filters that offer low-latency conversion results and 50Hz or 60Hz rejection for noisy industrial environments. A low-noise, programmable gain amplifier (PGA) provides gains ranging from 1 to 128 to amplify low-level signals for resistive bridge or thermocouple applications.

Additionally, these devices integrate a low-drift, 2.5V reference that reduces printed circuit board (PCB) area. Finally, two programmable excitation current sources (IDACs) allow for easy and accurate RTD biasing.

Features

  • Low power consumption (as low as 280μA)
  • Low-noise PGA (19nVRMS at gain = 128)
  • 1 to 128 programmable gain 
  • 2.5SPS to 4kSPS programmable data rates 
  • Simultaneous 50Hz and 60Hz rejection at ≤ 20 SPS with low-latency digital filter
  • Analog multiplexer with 12 (ADS124S08) or 6 (ADS124S06) independently selectable inputs
  • Dual-matched programmable current sources for sensor excitation (10μA to 2000μA)
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  • 2.5V, 10ppm/°C (max) drift internal reference
  • 4.096MHz, 1.5% accuracy internal oscillator
  • Internal temperature sensor
  • Extended fault detection circuits
  • Self offset and system calibration
  • Four general-purpose I/Os
  • SPI-compatible interface with optional CRC
  • Unipolar (2.7V to 5.25V) or bipolar (±2.5V) analog supply
  • 2.7V to 3.6V digital Supply 
  • –50°C to +125°C operating temperature: 

Applications

  • Sensor transducers and transmitters (temperature, pressure, strain, flow)
  • PLC and DCS analog input modules
  • Temperature controllers
  • Climate chambers, industrial ovens

Videos

Block Diagram

Block Diagram - Texas Instruments ADS124S0x Low-Power Analog-to-Digital Converters

Evaluation Module

Texas Instruments ADS124S08EVM Evaluation Module

Provides hardware and software support for evaluation of the ADS124S08 delta-sigma ADC.

Learn Moreabout Texas Instruments ADS124S08EVM Evaluation Module View Productsrelated to Texas Instruments ADS124S08EVM Evaluation Module
Published: 2016-12-27 | Updated: 2022-03-11