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ADC0831 Converter 8-Bit Analog to Digital

ADC0831 Converter 8-Bit Analog to Digital Features

  • NSC MICROWIRE compatible — direct interface to COPS family processors
  • Easy interface to all microprocessors, or operates “stand-alone”
  • Operates ratiometrically or with 5 VDC voltage reference
  • No zero or full-scale adjust required
  • 2-, 4- or 8-channel multiplexer options with address logic
  • Shunt regulator allows operation with high voltage supplies
  • 0V to 5V input range with single 5V power supply
  • Remote operation with serial digital data link
  • TTL/MOS input/output compatible n 0.3″ standard width, 8-, 14- or 20-pin DIP package
  • 20 Pin Molded Chip Carrier Package (ADC0838 only)
  • Surface-Mount Package


  • Resolution 8 Bits
  • Total Unadjusted Error ±1⁄2 LSB and ±1 LSB
  • Single Supply 5V DC
  • Low Power 15 mW
  • Conversion Time



The ADC0831 Converter is a 8-bit successive approximation A/D converters with a serial I/O and configurable input multiplexers with up to 8 channels. The serial I/O is configured to comply with the NSC MICROWIRE™ serial data exchange standard for easy interface to the COPS™ family of processors, and can interface with standard shift registers or µPs.

The 2-, 4- or 8-channel multiplexers are software configured for single-ended or differential inputs as well as channel assignment. The differential analog voltage input allows increasing the common-mode rejection and offsetting the analog zero input voltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution


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