SLAU920 November   2023 DAC80504 , DAC80508

 

  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
  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.     Trademarks
  12. 6Related Documentation

1.1 Introduction

The DACx050x is a pin-compatible family of low-power, multi-channel, buffered voltage output, digital to-analog converters (DAC). The DACx050x includes a 2.5-V, 5-ppm/°C internal reference, eliminating the need for an external precision reference in most applications. A users-selectable gain configuration provides full-scale output voltages of 1.25 V (gain = ½), 2.5 V (gain = 1) or 5 V (gain = 2). The device operates from a single 2.7-V to 5.5-V supply, is specified monotonic, and provides high linearity of ±1 LSB INL.

Communication to the DACx050x is performed through a serial interface that operates at clock rates up to 50 MHz. The VIO pin enables serial interface operation from 1.7 V to 5.5 V. The DACx050x flexible interface enables operation with a wide range of industry-standard microprocessors and micro-controllers.

The DACx050x incorporates a power-on-reset circuit that powers up and maintains the DAC outputs at either zero-scale or mid-scale until a valid code is written to the device. The devices consume low current of 0.6 mA/channel at 5.5 V, making the devices an excellent choice for battery-operated equipment. A per-channel power down feature reduces the device current consumption to 15 µA.

This user's guide describes the characteristics, operation, and recommended use cases of the DAC80508-04EVM. This document provides examples and instructions on how to use the DAC80508-04EVM board and included software. Throughout this document, the terms evaluation board, evaluation module, and EVM are synonymous with the DAC80508-04EVM. This document also includes schematics, the reference printed circuit board (PCB) layouts, and a complete bill of materials (BOM).