SBAU433B November   2025  – April 2026

 

  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 Specifications
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Analog Inputs
      1. 2.1.1 Differential Current Input Channels
      2. 2.1.2 Differential Voltage Inputs Channels
      3. 2.1.3 Combined Differential Current and Voltage Input Channels
      4. 2.1.4 Single-Ended Current Input Channels
    2. 2.2 ADC Connections and Decoupling
    3. 2.3 Digital Interface
    4. 2.4 Power Supplies
    5. 2.5 Voltage Reference
    6. 2.6 Clocking
    7. 2.7 Using the ADS125H18 EVM With an External Controller
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 ADS125H18 GUI Installation
  10. 4Implementation Results
    1. 4.1 Hardware Connections
    2. 4.2 GUI Operation
      1. 4.2.1 ADC Capture Settings and Sequencer Configuration
      2. 4.2.2 Time-Domain Display
      3. 4.2.3 Frequency-Domain Display
      4. 4.2.4 Histogram Display
      5. 4.2.5 EVM Register Settings
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Revision History

2.1 Analog Inputs

The ADS125H18 EVM supports multiple configuration types. By default, the EVM includes input channels that support differential voltage measurements, differential current measurements, single-ended current measurements, or combined differential voltage or current measurements. Table 2-1 shows the default configuration for each ADC channel. Subsequent sections describe the input structure for each configuration type in more detail.

Table 2-1 Default Configuration for each ADC Channel Pair

ADC CHANNEL

DEFAULT CONFIGURATION

AIN0

Single-ended current

AIN1

Single-ended current

AIN2 / AIN3

Differential current OR voltage

AIN4 / AIN5

Differential current OR voltage

AIN6

Single-ended current

AIN7

Single-ended current

AIN8 / AIN9

Differential voltage

AIN10 / AIN11

Differential voltage

AIN12 / AIN13

Differential current

AIN14 / AIN15

Differential current