SLVUDB0A August   2025  – October 2025

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 ADS9324EVM Quick Start Guide
    2. 2.2 Analog Interface
      1. 2.2.1 ADC Input SMA Connections
      2. 2.2.2 Voltage Reference
    3. 2.3 Digital Interface and Clock Inputs
      1. 2.3.1 Digital Interface Connections
      2. 2.3.2 Level Translators
    4. 2.4 Power Supplies
      1. 2.4.1 USB Power and When to Power the Board Externally
  7. 3Software
    1. 3.1 ADS9324EVM Software Installation
      1. 3.1.1 USB Driver Installation
    2. 3.2 ADS9324EVM Software
      1. 3.2.1 Using Configuration Tab
      2. 3.2.2 Using the Data Capture Tab
      3. 3.2.3 Using the Linearity Analysis Tab
      4. 3.2.4 Using the Histogram Analysis Tab
  8. 4Hardware Design Files
    1. 4.1 Schematics
      1. 4.1.1 ADS9324EVM Schematics
    2. 4.2 Layout
    3. 4.3 Bill of Materials (BOM)
      1. 4.3.1 ADS9324EVM Bill of Materials (BOM)
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Related Documentation
  11. 7Revision History

2.2.2 Voltage Reference

The ADS9324 uses an internal 4.096V reference voltage, which can be measured on the REFIO pin when configured as an output (default). For applications which require improved drift performance, configure the REFIO pin as an input and apply an external reference voltage to the pin. The REFIO pin can be configured by the REFSEL pin or by configuring an ADC register. To use the REFSEL pin, connect REFSEL to GND for the external reference or connect REFSEL to IOVDD for the internal reference. This can be done by the J21 header of the R67 and R68 resistors.

The ADS9324EVM include a provision for evaluating the REF5040 reference IC. The REF50xx family of high precision series voltage references offers low noise (3μVPP/V), very low temperature drift coefficient (2.5ppm/°C), and high accuracy (±0.025%). To connect the REF5040 to the ADS9324, configure the REFIO pin as an input using the GUI and then install a shunt on jumper JP2.

ADS9324EVM REF5040Figure 2-3 REF5040