SBAU480 November   2024

 

  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
    5. 1.5 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  8. 2Hardware
    1. 2.1 Circuitry
      1. 2.1.1 Bypass Capacitors
      2. 2.1.2 Output Filter
      3. 2.1.3 Configurable Gain
      4. 2.1.4 Configurable Reference Voltage
      5. 2.1.5 Thermal Alert Function
      6. 2.1.6 Load Connectors
      7. 2.1.7 INA75x Current-Sense Amplifier
  9. 3Implementation Results
    1. 3.1 Operation
      1. 3.1.1 Measurements
      2. 3.1.2 Advanced Measurement Tips
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layout
    3. 4.3 Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6Related Documentation From Texas Instruments

2.1.7 INA75x Current-Sense Amplifier

U1 is the INA75x current-sense amplifier. The INA75xEVM board comes with either of the four devices in the family (INA750A, INA750B, INA751A and INA751B ). Link to the correct orderable EVM is provided in individual product folders.

  • A differential voltage is generated when the load current flows through the integrated shunt that is connected across the inputs IS+ and IS–.
  • The INA75x can be configured to allow for unidirectional or bidirectional operation.
  • The INA75x gain can be configured to optimize output voltage swing.