SBOU079D july   2009  – july 2023 INA220 , INA220-Q1

 

  1.   1
  2.   INA220 Evaluation Module
  3.   Trademarks
  4. 1Overview
    1. 1.1 INA220EVM 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 INA220_Test_Board Hardware
    2. 2.2 Signal Definitions of J1 (25-Pin Male DSUB)
    3. 2.3 Theory of Operation For USB_DIG_Platform
  6. 3INA220EVM (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 Power
    5. 3.5 Connecting the USB Cable to the INA220EVM
    6. 3.6 INA220 Jumper Settings
    7. 3.7 Connecting External Power to the INA220EVM
    8. 3.8 Connecting External Signals to the INA220EVM
  7. 4INA220 Software Overview
    1. 4.1 INA220EVM Software Install
    2. 4.2 Starting the INA220EVM Software
    3. 4.3 Using the INA220 Software
      1. 4.3.1 Overview Tab
      2. 4.3.2 Config Tab
      3. 4.3.3 Calibration Tab
      4. 4.3.4 Scaling Tab
      5. 4.3.5 Graph Tab
      6. 4.3.6 Registers Tab
      7. 4.3.7 EVM Controls Pull-Down Menu
      8. 4.3.8 Software Revision
  8. 5Bill of Materials
  9. 6Revision History

3.8 Connecting External Signals to the INA220EVM

The INA220 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 INA220. The bus voltage is monitored on VBUS (26 V maximum). The shunt voltage is the difference between VIN– and VIN+ (320 mV maximum). See also the INA220 data sheet.