SLAU919A November   2023  – June 2024

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Hardware Setup
      1. 2.1.1 Hardware Theory of Operation
      2. 2.1.2 Jumper Definitions
      3. 2.1.3 Connector Definitions
      4. 2.1.4 Test Points
    2. 2.2 Hardware Overview
      1. 2.2.1 Electrostatic Discharge Caution
      2. 2.2.2 Connecting the FTDI Digital Controller
      3. 2.2.3 SPI Configuration
      4. 2.2.4 I2C Configuration
  9. 3Software
    1. 3.1 Software Setup
      1. 3.1.1 Software Installation
    2. 3.2 Software Overview
      1. 3.2.1 Launching the Software
      2. 3.2.2 Software Features
        1. 3.2.2.1 Low Level Configuration Page
        2. 3.2.2.2 High Level Configuration Page
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Related Documentation
  13. 7Revision History

1.1 Introduction

The DACx050x digital-to-analog converter (DAC) is a highly accurate, low-power device with voltage output. The DACx050x is specified monotonic by design and offer linearity of less than 1 LSB. These devices include a 2.5V, 5ppm/°C internal reference, giving full-scale output voltage ranges of 1.25V, 2.5V, or 5V.

The DACx050x incorporates a power-on-reset (POR) circuit that makes sure the DAC output powers up at zero-scale or mid-scale, and remains at that scale until a valid code is written to the device. These devices consume a low current of 1mA, and include a power-down feature that reduces current consumption to typically 15µA at 5V.

The digital interface of the DACx050x can be configured to SPI or I2C mode using the SPI2C pin. In SPI mode, the DACx050x uses a versatile 3-wire serial interface that operates at clock rates of up to 50MHz. In I2C mode, the DACx050x operates in standard mode (100Kbps), fast mode (400Kbps), and fast mode plus (1.0Mbps).

This user's guide describes the characteristics, operation, and recommended use cases of the DAC80502-01EVM. This document provides examples and instructions on how to use the DAC80502-01EVM board and included software. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the DAC80502-01EVM. This document also includes schematics, the reference printed circuit board (PCB) layouts, and a complete bill of materials (BOM).