INA229 Current/Voltage/Power/Energy/Charge Monitor Texas Instruments INA229/INA229-Q1 Current/Voltage/Power/Energy/Charge Monitors are ultra-precise digital power monitors with a 20-bit delta-sigma ADC specifically designed for current-sensing applications. The device can measure a full-scale differential input of ±163.84mV or ±40.96mV across a resistive shunt sense element with common-mode voltage support from –0.3V to +85V. The INA229 reports current, bus voltage, temperature, power, energy, and charge accumulation while employing a precision ±0.5% integrated oscillator. This reporting is all done while performing the needed calculations in the background. The integrated temperature sensor is ±1°C accurate for die temperature measurement and is useful in monitoring the system's ambient temperature.