1 Evaluation Module Overview
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).
1.2 Kit Contents
Table 1-1 details the contents of the EVM kit. Contact the TI Product Information Center at (972) 644-5580 if any
component is missing. Download the latest versions of the related software on the TI website, www.ti.com.
Table 1-1. DAC80508-04EVM Kit Contents
Item Quantity
DAC80508-04EVM board 1
USB micro-B plug to USB-A plug cable 1
1.3 Specification
The EVM is intended to provide basic functional evaluation of the device. The layout is not intended to be a
model for the target circuit, nor laid out for electromagnetic compatibility (EMC) testing. The EVM consists of a
printed-circuit board (PCB), which has the DAC80508 installed.
1.4 Device Information
Table 1-2 lists the devices supported by the DAC80508-04EVM. DACx050x is used as a generic name for these
devices. This document focuses on the DAC80508, which comes pre-installed on the EVM, and the DAC80504.
Table 1-2. DAC80508-04EVM Supported Devices
DACx050x DAC Resolution Number of DACs
DAC60504 12-bit 4
DAC70504 14-bit 4
DAC80504 16-bit 4
DAC60508 12-bit 8
DAC70508 14-bit 8
DAC80508 16-bit 8
Evaluation Module Overview www.ti.com
2DAC80508-04 Evaluation Module SLAU920 – NOVEMBER 2023
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