SLAU858B December   2023  – June 2025 AFE881H1

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
  6. 2Hardware
    1. 2.1 Hardware Description
      1. 2.1.1 Theory of Operation
      2. 2.1.2 Signal Definitions
    2. 2.2 Hardware Setup
      1. 2.2.1 Electrostatic Discharge Caution
      2. 2.2.2 Power Configuration and Jumper Settings
      3. 2.2.3 Connecting the Hardware
        1. 2.2.3.1 Power Configuration
        2. 2.2.3.2 External SPI and UART Controllers
  7. 3Software
    1. 3.1 Software Setup
    2. 3.2 Software Description
      1. 3.2.1 Starting the Software
      2. 3.2.2 Software Features
        1. 3.2.2.1 High Level Configuration Page
        2. 3.2.2.2 AFE881H1 Register Page
  8. 4Hardware Design Files
    1. 4.1 Board Schematic
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Related Documentation
  11. 7Revision History

1.1 Introduction

The AFE881H1 16-bit digital-to-analog converter (DAC) is a highly-integrated, high-accuracy, and extremely low-power device with voltage-outputs designed for HART enabled factory automation and control applications. The AFE881H1 includes most of the components required to construct an analog output module with voltage and current outputs. These components include a 16-bit highly accurate DAC, a HART FSK modem, an internal 10ppm/°C voltage reference, and an internal diagnostic analog-to-digital converter (ADC). This AFE881H1EVM provides a straightforward circuit for functional testing and verification.

This user's guide describes the characteristics, operation, and recommended use cases of the AFE881H1EVM. This document provides examples and instructions on how to use the AFE881H1EVM board and included software. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the AFE881H1EVM. This document also includes a schematic, reference printed circuit board (PCB) layouts, and a complete bill of materials (BOM).