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  • EMC Compliance Testing for Precision ADC Systems

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

       

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  • EMC Compliance Testing for Precision ADC Systems
  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
  12. IMPORTANT NOTICE
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APPLICATION NOTE

EMC Compliance Testing for Precision ADC Systems

Abstract

This application note introduces electromagnetic compatibility (EMC) testing including a brief introduction and test setup specified for IEC 61000-4-x and CISPR 11 test standards. The test solution for collecting data through optical fibers from the ADS8686S EMC test board in this design has been proven to be reliable and feasible. The test results also demonstrate a robust EMC design solution based on the ADS8686S for industrial applications. The testing methods and data collection solution can be used in any similar IEC 61000-4-x and CISPR 11 testing for precision ADC systems.

Trademarks

Littelfuse® is a registered trademark of Littelfuse, Inc..

Eaton® is a registered trademark of Eaton Corporation plc.

ZEUS® is a registered trademark of ZEUS Battery Products.

Microsoft® and Windows® are registered trademarks of Microsoft Corporation.

All trademarks are the property of their respective owners.

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

 
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