SBAA548A April   2022  – May 2022 ADS8588S , ADS8681 , ADS8686S , ADS8688 , ADS8688A

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
  4. 2Circuit Design and Test System
    1. 2.1 Design Description
      1. 2.1.1 Input Protection
      2. 2.1.2 Power Supply Design and Protection
      3. 2.1.3 Digital Isolation Design
      4. 2.1.4 Component Selection and Layout Considerations
    2. 2.2 Test System
      1. 2.2.1 Reference
    3. 2.3 Standards and Test Criteria
  5. 3Test Details and Results
    1. 3.1 Electrical Fast Transients (EFT)
    2. 3.2 Electrostatic Discharge (ESD)
    3. 3.3 Surge Immunity (SI)
    4. 3.4 Conducted Immunity (CI)
    5. 3.5 Radiated Immunity (RI)
    6. 3.6 Radiated Emissions (RE)
      1.      20
  6. 4Schematics
  7. 5PCB Layouts
  8. 6Bill of Materials
  9. 7Acknowledgments
  10. 8References
  11. 9Revision History

1 Introduction

The ADS8686S is a 16-channel, 16-bit, 1-MSPS, dual simultaneous-sampling, successive approximation register (SAR) analog-to-digital converter (ADC) with an integrated analog front-end (AFE) for single-ended, bipolar inputs up to ±12-V range with an overrange configuration. The integrated AFE with 1-MΩ input impedance eliminates requirements for an external ADC driver. These characteristics makes this ADC suitable for industrial automation applications including grid infrastructure and analog input modules. Figure 1-1 illustrates the ADS8686S EMC test board.

GUID-20220322-SS0I-ZC8V-6VB8-DTZ0WXT5RJKH-low.pngFigure 1-1 ADS8686S EMC Test Board