SBAU493 October   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 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Analog Inputs
    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 ADS125R14 EVM With an External Controller
  9. 3Software Installation and Hardware Connections
    1. 3.1 ADS125R14 EVM GUI Installation
    2. 3.2 ADS125R14 EVM Hardware Connections
  10. 4GUI Operation
    1. 4.1 GUI Navigation and Home Page
    2. 4.2 ADC Configuration
    3. 4.3 Register Settings
    4. 4.4 Analysis Page
      1. 4.4.1 Time-Domain Plot View
      2. 4.4.2 Frequency-Domain Plot View
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layouts
    3. 5.3 Bill of Materials (BOM)
  12. 6Additional Information
    1.     Trademarks
  13. 7References

1.4 Device Information

Table 1-2 provides important specifications for the ADS125R14. Refer to the ADS125R14 datasheet for complete specifications:
Table 1-2 ADS125R14 Device Family Key Features and Parameters
PARAMETER VALUE
ADC resolution 24 bits
Maximum data rate 320kSPS
Channel count 9 (8 AINx + 1 AINCOM); fully flexible multiplexer
Integrated features
  • Programmable gain amplifier (PGA)
  • Selectable speed modes
  • Oscillator
Package TSSOP-28
Package size 10.2mm × 7.8mm
Specified temperature range -40°C ≤ TA ≤ 125°C
The ADS125R14 EVM is provided with an ADS125R14 installed. The ADS125R14 EVM GUI is intended to operate specifically with the ADS125R14. The user can remove the ADS125R14 and the accompanying circuitry and install any device listed in Table 1-3; however, the user cannot use the ADS125R14 EVM GUI or PHI controller card if the user replaces the ADS125R14 already installed on the EVM. Refer to Section 2.7 for more information about using the ADS125R14 EVM with an external controller. The rest of this document assumes that the ADS125R14 is installed on the EVM, unless otherwise noted.
Table 1-3 ADC Options in the ADS125R14 Device Family
Device Differential Channels Features
ADS125R14 4
  • PGA
  • Internal oscillator
  • Register programmable – 4-wire SPI
ADS125R11 1
ADS125R04 4
  • Separate AVDD and DVDD supplies
  • Internal oscillator
  • Pin programmable – 2-wire serial interface
ADS125R03 4
  • Internal oscillator
  • Pin programmable – 2-wire serial interface

Figure 1-2 shows the ADS125R14 device block diagram:

ADS125R14EVM-PDK ADS125R14 Block Diagram Figure 1-2 ADS125R14 Block Diagram