Analog Devices Inc. AD7192 24-Bit Sigma-Delta ADCs with PGA

Analog Devices AD7192 24-Bit Sigma-Delta ADCs with PGA provide a low-noise, complete analog front end for high-precision measurement applications. The AD7192 includes a low-noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The on-chip low-noise gain stage enables small amplitude signals of small to interface directly to the ADC. Analog Devices AD7192 Sigma-Delta ADCs operate from a 3V to 5.25V power supply and consume 4.35mA of current.


  • 11nV @ 4.7Hz (gain = 128) RMS noise
  • 15.5 noise-free bits @ 2.4kHz (gain = 128)
  • Up to 22 noise-free bits (gain = 1)
  • 5nV/°C offset drift
  • 1ppm/°C gain drift
  • Specified drift over time
  • Two differential/four pseudo differential input channels
  • Automatic channel sequencer
  • Programmable gain (1 to 128)
  • 4.7Hz to 4.8kHz output data rate
  • Internal or external clock
  • Simultaneous 50Hz/60Hz rejection
  • Four general-purpose digital outputs
  • Power supply
    • 3V to 5.25V AVDD 
    • 2.7V to 5.25V DVDD
  • 4.35mA current
  • –40°C to +105°C temperature range


  • Weigh scales
  • Strain gage transducers
  • Pressure measurement

Block Diagram

Block Diagram - Analog Devices Inc. AD7192 24-Bit Sigma-Delta ADCs with PGA
Published: 2018-03-29 | Updated: 2023-01-30