SLAU905A August   2023  – November 2023 DAC81401

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Software
    1. 2.1 GUI Installation
    2. 2.2 Software Description
  8. 3Hardware
    1. 3.1 Power Requirements
    2. 3.2 Jumper Information
    3. 3.3 Setup
    4. 3.4 Header Information
    5. 3.5 Test Points
  9. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  10. 5Compliance Information
    1. 5.1 Compliance and Certifications
  11. 6Additional Information
    1. 6.1 Trademarks
  12. 7Revision History

1.3 Specification

Figure 1-1 shows the block diagram of the DAC81401EVM board. By default, the DAC81401EVM connects to a local machine USB port through a USB-A to Micro-USB cable.

GUID-20230724-SS0I-5LQZ-CMBG-TDGLFJZ3VPDD-low.svgFigure 1-1 DAC81401EVM Functional Block Diagram

The USB provides the 5 V default DVDD supply to the DAC81401. Voltage regulators generates 3.3 V and 1.8 V from USB 5 V supply. These 3.3 V and 1.8 V supplies are used to power the FTDI controller, level shifter and IOVDD of DAC81401. IOVDD can be 3.3-V or 1.8-V depending on the jumper J5 setting. DVDD and IOVDD device supply inputs for the DAC81401 can be externally supplied through J7 and J6 banana jacks respectively, with proper settings of jumpers J1 and J5. DAC81401 AVDD and AVSS (can be GND through jumper J2) needs external power supply connection through J3 and J4 banana jacks respectively.

Optional High voltage gain stage needs separate power supply through J13 and J15 banana jacks. This high voltage stage provides 4 times gained DAC81401 output voltage, up to 0-80 V or ± 40-V. Attenuated output voltage by 4, is used on the VSENSEP to close the loop properly on DAC81401 side.