Problem in Analysing the power Consumption of the INA 219 current sensor

Hi guys,

These days, I was playing around with the Adafruit current sensor (INA219 High Side DC Current Sensor Breakout - 26V ±3.2A Max [STEMMA QT] : ID 904 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits) in my personal project. It is fun to learn and implement the I2C coding in my project. However, I just curious about the power consumption of this device. It is not stated on the INA219 datasheet. Can somebody tell me the correct way to analysing its power consumption? Currently, I just insert an ammeter in between the 3.3V power supply of Arduino and the VCC of the Adafruit device. Is it correct to do so? :slight_smile:

The current consumption is given on the first page of the datasheet.

When measuring small currents with a multimeter you need to be aware of the multimeter 'burden voltage' and how that may affect the functioning of the device you are measuring.

How can I miss that zzzzz :o ! Thanks for reminding me about the "burden Voltage"