SLVUDA2 July   2025

 

  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.   General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  9. 2Hardware
    1. 2.1 Power Requirements
    2. 2.2 Test Points
    3. 2.3 Setup
      1. 2.3.1 Reference Voltage
        1. 2.3.1.1 Configuration 1: REFA and REFB = GND
        2. 2.3.1.2 Configuration 2: OPA CH A Bias REFA and REFB
        3. 2.3.1.3 Configuration 3: REFA and REFB Bias Independently
      2. 2.3.2 Current Sensing
      3. 2.3.3 Input Filtering
      4. 2.3.4 Output Load
    4. 2.4 Best Practices
  10. 3Hardware Design Files
    1. 3.1 Schematic
    2. 3.2 PCB Layouts
    3. 3.3 Bill of Materials (BOM)
  11. 4Additional Information
    1. 4.1 Trademarks
    2. 4.2 Related Documentation

1.3 Specification

The INA1H94EVM is an evaluation module that provides a method to evaluate the INA1H94-SP. The EVM is populated with the engineering sample version (INA1H94HKX/EM) and is not radiation-tested. The printed circuit board (PCB) is 4.20in by 5in in size and uses FR4 material.

The EVM offers the following features:

  • High voltage input terminals up to ±150V. See the Section 2 on high voltage guidelines.
  • Optional reference buffer footprint (quad op amp in TSSOP-14 package)
  • Optional sense resistor footprint (0805 components)
  • Footprints for input filtering capacitors and output loads (0805 components)
  • Footprints for SMA/SMB connectors on input and output of PCB
  • Option to bias REFA and REFB to separate voltages