SBOU275 April   2022 INA190-EP

 

  1.   Trademarks
  2. 1Overview
    1. 1.1 INA190-EP Kit Contents
    2. 1.2 Related Documentation From Texas Instruments
  3. 2INA190EPEVM Hardware
    1. 2.1 Features
  4. 3Quick Start Setup and Use
    1. 3.1 Measurements
  5. 4INA190EPEVM Circuit and Components
    1. 4.1 R2x, R3x, R5x, C2x, C3x
    2. 4.2 C1x
    3. 4.3 R1x
    4. 4.4 R6
    5. 4.5 R4x
    6. 4.6 U1x - INA190-EP
    7. 4.7 J0x, J1x
  6. 5Reference Voltage Setup
    1. 5.1 Unidirectional Mode
    2. 5.2 Bidirectional Mode
  7. 6Guarding Voltage - Using the "Guarded Inputs" Panel
  8. 7INA190EPEVM Schematics and PCB Layout
    1. 7.1 Schematics
    2. 7.2 PCB Layout
  9. 8Bill of Materials

2 INA190EPEVM Hardware

The INA190EPEVM is intended to provide basic functional evaluation of the INA190-EP device family. The fixture layout is not intended to be a model for the target circuit, nor is it laid out for electromagnetic compatibility (EMC) testing. The INA190EPEVM consists of one PCB with an option to cut out six individual PCBs, one for each of the five gain variants (INA190A1-EP, INA190A2-EP, INA190A3-EP, INA190A4-EP, and INA190A5-EP). Each of the PCB cutouts consists of one INA190AXNDDFREP device (where X is 1, 2, 3, 4, and 5) and test points for external hardware connections, as well as pads to solder down optional circuitry. A sixth board includes a guarding scheme to guard the input traces thus, preventing leakage current. This board has the INA190A5-EP as the installed test device.