The INA190EPEVM allows the user to either simulate the voltage developed across a sense resistor based on a given set of system conditions, or to connect it remotely to an existing shunt already included in an example application. Additionally, a surface-mount technology (SMT) shunt resistor can be soldered across the IN+ and IN– pads these inputs can be connected in-series with their system and load.

To configure a measurement evaluation without a shunt resistor, follow these procedures:

1. Connect a differential voltage to the IN+ (J0x) and IN– (J1x) tabs. With the reference voltage set at ground, ensure that the IN+ pin is the more positive of the two inputs.
2. Additionally, if the differential voltage supply is a floating supply, connect a common-mode voltage between –0.1 V to 40 V to the inputs by connecting the positive lead of the external voltage source to the IN– (J1x) tab and source ground to a GND test point. This effectively raises the absolute voltage of the input pins, while still retaining a positive input differential signal.
3. Measure the output voltage at the OUT connection point.

To configure a measurement evaluation with a shunt resistor, follow these procedures:

1. Solder down a resistor at the R4x pad that connects the IN+ (J0x) and IN– (J1x) inputs.
2. Connect the IN+ (J0x) and IN– (J1x) tabs in series with the load and bus voltage sources while powered off.
   WARNING:

   If measuring current, please first ensure the equipment (shunt resistor, wires, connectors, and so forth) being used can support the amperage and power dissipation. Secondly, ensure the current flowing through J0x and J1x does not exceed 15 A. If using the "Guarded Inputs" panel, ensure current flowing between J0 and J1 does not exceed 10 A. Failure to do any of this could result in hot surfaces (> 55°C), damage to the EVM, or personal injury.

3. Power on the system and measure the output voltage at the OUT connection point.