SBAU413A october   2022  – may 2023

 

  1.   Abstract
  2.   Trademarks
  3. 1EVM Overview
    1. 1.1 ADS131B26Q1EVM-PDK Features
    2. 1.2 ADS131B26Q1EVM-PDK Quick-Start Guide
  4. 2Analog Interface
    1. 2.1 Terminal Blocks and Test Points
    2. 2.2 ADC1A and ADC1B
    3. 2.3 ADC2A and ADC2B
    4. 2.4 ADC3A and ADC3B
  5. 3Digital Interface
    1. 3.1 Connection to the PHI Controller
    2. 3.2 Digital Header
    3. 3.3 Clock Options
  6. 4Power Supplies
    1. 4.1 DC/DC Converter Circuit
    2. 4.2 ADC Power Supplies
    3. 4.3 Power Supply and Voltage Reference Decoupling
  7. 5ADS131B26Q1EVM-PDK Initial Setup
    1. 5.1 Default Jumper Settings
    2. 5.2 EVM Graphical User Interface (GUI) Software Installation
  8. 6ADS131B26Q1EVM-PDK Software Reference
    1. 6.1 Global Settings for ADC Control
    2. 6.2 Register Map Configuration
      1. 6.2.1 Register Map Basics
      2. 6.2.2 ADC1A, ADC3A and ADC1B, ADC3B Configuration
      3. 6.2.3 ADC2A and ADC2B Configuration
    3. 6.3 Analysis Tools
      1. 6.3.1 Time Domain Display
      2. 6.3.2 Spectral Analysis Tool
      3. 6.3.3 Histogram Analysis
      4. 6.3.4 Sequencer Analysis
  9. 7ADS131B26Q1EVM-PDK Bill of Materials, PCB Layout, and Schematics
    1. 7.1 Bill of Materials (BOM)
    2. 7.2 PCB Layout
    3. 7.3 Schematics
  10. 8Revision History

1 Abstract

GUID-20220920-SS0I-ZMHL-D9PR-4LNZ9WJVWM5D-low.svgFigure 1-1 ADS131B26Q1EVM-PDK Evaluation Module

This user's guide describes the design and operation of the ADS131B26Q1EVM-PDK. This evaluation module (EVM) is an evaluation board for the ADS131B26-Q1, a complete analog front-end (AFE) for automotive electrical vehicle (EV) battery management systems (BMS) that integrates two pairs of simultaneous-sampling, high-precision, 24-bit analog-to-digital converter (ADC) channels to redundantly measure battery current and battery pack voltage with high resolution and accuracy. The EVM allows evaluation of all aspects of the ADS131B26-Q1. This user's guide covers the operation of the ADS131B26Q1EVM-PDK. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the ADS131B26Q1EVM-PDK. The terms PHI controller, PHI, and host are synonymous with the precision host interface (PHI) controller board that interfaces the EVM to the PC. Complete circuit descriptions, schematic diagrams, and bill of materials are included in this document.