Precision Weigh Scale Design Using the AD7791, 24-Bit Sigma-Delta ADC with External ADA4528-1 Zero-Drift Amplifiers

Reference Design using part AD7791BRM by Analog Devices

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Manufacturer

Analog Devices
  • Application Category
    Data Conversion
  • Product Type
    Analog to Digital Conversion

Associated Documents

For End Products

  • Battery Management
  • Measurement Instruments
  • Portable Instrumentation
  • Transmitter
  • Weight Scale

Description

  • Precision Weigh Scale Design Using the AD7791, 24-Bit Sigma-Delta ADC with External ADA4528-1 Zero-Drift Amplifiers. The Circuit is a precision weigh scale signal conditioning system. It uses the AD7791, a low power buffered 24-bit sigma-delta ADC along with two external ADA4528-1 zero-drift amplifiers. This solution allows for high dc gain with a single supply

Key Features

  • ADC Resolution
    24 Bit
  • ADC Sampling Rate
    120 SPS
  • Number of Channels
    1CH

Featured Parts (6)

Featured Parts
Part Number Manufacturer Type Description
ADA4528-1ACPZ-RL Analog Devices Operational Amplifiers - Op Amps Op Amp Single Auto Zero/Chopper R-R I/O ±2.75V/5.5V 8-Pin LFCSP T/R Buy
ADA4528-1ARMZ-R7 Analog Devices Operational Amplifiers - Op Amps Op Amp Single Auto Zero/Chopper R-R I/O ±2.75V/5.5V 8-Pin MSOP T/R Buy
ADA4528-1ACPZ-R7 Analog Devices Operational Amplifiers - Op Amps Op Amp Single Auto Zero/Chopper R-R I/O ±2.75V/5.5V 8-Pin LFCSP T/R Buy
ADA4528-1ARMZ-RL Analog Devices Operational Amplifiers - Op Amps Op Amp Single Auto Zero/Chopper R-R I/O ±2.75V/5.5V 8-Pin MSOP T/R Buy
ADA4528-1ARMZ Analog Devices Operational Amplifiers - Op Amps Op Amp Single Auto Zero/Chopper R-R I/O ±2.75V/5.5V 8-Pin MSOP Tube Buy
ADA4528-1ACPZ-R2 Analog Devices Operational Amplifiers - Op Amps Op Amp Single Auto Zero/Chopper R-R I/O ±2.75V/5.5V 8-Pin LFCSP T/R Buy

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