SLVSLJ1 September   2026

 

  1.   1
  2. 1Description
  3. 2Features
  4.   4
  5. 3Evaluation Module Overview
    1. 3.1 Introduction
    2. 3.2 Kit Contents
    3. 3.3 Specification
    4. 3.4 Device Information
  6. 4Hardware
    1. 4.1 Setup
      1. 4.1.1 Quick Start Setup
      2. 4.1.2 Measurements
    2. 4.2 Circuitry
      1. 4.2.1 R1, R2, R3, C2, C5
      2. 4.2.2 C1
      3. 4.2.3 R4
      4. 4.2.4 U1
        1. 4.2.4.1 J3
    3. 4.3 General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  7. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layout
    3. 5.3 Bill of Materials
  8. 6Additional Information
    1. 6.1 Trademarks
  9. 7Related Documentation

3.4 Device Information

The INA951-SEP is a current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –4V to 80V, independent of the supply voltage. The negative common-mode voltage allows the device to operate below ground, thus accommodating precise measurement of recirculating currents in half-bridge applications. The combination of a low offset voltage, small gain error and high DC CMRR enables highly accurate current measurement. The INA951-SEP is not only designed for DC current measurement, but also for high-speed applications (ex. Fast over-current protection) with a high bandwidth of 1.3MHz and an 85dB AC CMRR (at 50kHz).

The INA951-SEP operates from a single 2.7V to 10V supply, drawing 1.5mA of supply current. The INA951-SEP has a fixed 20V/V gain.

The INA951-SEP is specified over an operating temperature range of -55°C to +125°C and available in a space-saving SOT-32 package.