INA223 Voltage-Output Power Monitor Texas Instruments INA223 Voltage-Output Power Monitor is a voltage-output device that monitors the current, bus voltage, and power of a supply line by sensing a voltage drop across a shunt at common-mode voltages from 0V to 26V. The common-mode voltage range of TI INA223 Power Monitor is independent of the supply voltage. The low offset of the Zerø-Drift architecture enables current sensing with maximum drops across the shunt as low as 10 mV, full-scale. INA223 includes a two-wire interface used for adjusting the configuration settings of the device.