Impedance measurement for high current application

[DIGI_USER2]

I would like to make impedance measurements of DUT being powered by a linear amplifier.  The DUT draws 20A of current.  Is there a way to make that impedance measurement with the Analog Discovery 2?  Can the scope channel 1 handle current measurement of up to 20A?  I would like to use the configuration W1-(AMP)-C1-DUT-C2-R-GND.  Where W1 is the input to the power amplifier and C1 measures the current at the output on scope 1.     

[attila]

Hi @DIGI_USER2

Yes, it should work.
The oscilloscope inputs measure voltage. In case you are using low shunt resistor, with low voltage drop, an amplifier would be good to rise the voltage. The AD2 scope input ranges are 5V and 50V pk2pk.