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Current consumption of AD8370

Hello everyone,

I am facing issues in using AD8370 in my system. Attached is the schematic diagram for the same.

In the datasheet it is mentioned that the IC uses around 80mA of current. In my system the current consumption of the IC is only 40mA. I have verified the input voltage as 5V which is coming fine. If anyone has faced the same issue please help.

Parents Reply
  • Hi Nao,

    I found the issue. I had a series resistor and a shunt resistor for impedance matching on the input pins of AD8370. This was causing the bias on input pins to be disturbed. I replaced the series resistor with a capacitor and then the device started working.

    It will be helpful if it is mentioned in the datasheet to put a series capacitor immediately before the input pins.



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