SBOU074E january   2009  – july 2023 INA219

 

  1.   1
  2.   INA219 Evaluation Module
  3.   Trademarks
  4. 1Overview
    1. 1.1 INA219EVM Hardware
    2. 1.2 Related Documentation from Texas Instruments
    3. 1.3 Information About Cautions and Warnings
  5. 2System Setup
    1. 2.1 Theory of Operation for INA219_Test_Board Hardware
    2. 2.2 Signal Definitions of J1 (25-Pin Male DSUB)
    3. 2.3 Theory of Operation For SM-USB-DIG Platform
  6. 3INA219EVM (Rev A) Hardware Setup
    1. 3.1 Electrostatic Discharge Warning
    2. 3.2 Typical Hardware Connections
    3. 3.3 Connecting the Hardware
    4. 3.4 Connecting the USB Cable to the INA219EVM
    5. 3.5 INA219 Jumper Settings
    6. 3.6 Connecting External Power to the INA219EVM
    7. 3.7 Connecting External Signals to the INA219EVM
  7. 4INA219 Software Overview
    1. 4.1 Operating Systems for INA219 Software
    2. 4.2 INA219EVM Software Install
    3. 4.3 Starting the INA219EVM Software
    4. 4.4 Using the INA219 Software
      1. 4.4.1 Overview Tab
      2. 4.4.2 Config Tab
      3. 4.4.3 Calibration Tab
      4. 4.4.4 Scaling Tab
      5. 4.4.5 Graph Tab
      6. 4.4.6 Registers Tab
      7. 4.4.7 EVM Controls Pull-Down Menu
      8. 4.4.8 Software Revision
  8. 5Bill of Materials
  9. 6Revision History

3.7 Connecting External Signals to the INA219EVM

The INA219 shunt and bus voltages are applied through the terminal block T4. The T4 terminal block is a direct connection to VIN+ and VIN– of the INA219. The bus voltage is monitored on VIN– (26 V maximum). The shunt voltage is the difference between VIN– and VIN+ (320 mV maximum). See also the INA219 data sheet.