24-bit Sigma Delta A/D Converter



Datasheet and Guides


Sample and Buy


  • 8-channel analog differential input
  • Low noise PGA
  • 24-bit sigma delta ADC
  • Programmable data rates: 12.8 kSPS
  • Internal oscillator: 4MHz, 1.5% accuracy
  • Internal temperature sensor
  • 2 general purpose I/Os
  • Internal LDO to generate the supply for the digital core logics
  • A sequencer to read out ADC data automatically supporting two modes:
    – Single conversion mode
    – Continuous conversion mode
    – A 128-sample FIFO for storing conversion data
  • SENT (Single Edge Nibble Transmission) for transmitting high resolution sensor data in automotive applications
  • Host interface (I2C, SPI or SWI) for sensor calibration
  • Reprogrammable 128-bit non-volatile memory(NVM) for analog calibration data programmed via I2C or SPI interface
Physical Characteristics
  • Supply voltages
    – Core supply voltage, VDD: 1.35V to 1.65V
    – I/O supply voltage, VDDIO: 3.0V ~ 5.5V
    – Analog supply voltage, VDDA: 4.5V ~ 5.5V
  • Operating temperature: -40°C to 85°C
  • Available in 5×5 5mm pitch 32-QFN, 4×4 0.5mm 24 QFN package, and 5×5 0.65mm 20 QFN package
Block Diagram