I have been performing measurements with OTII HW version 1.3 and firmware version 1.1.5.
The DUT has a supply voltage of 3.6V. I have seen higher voltage drops (up to 1V drop) than expected:
I have measured by powering up the OTII by the PC and/or 9V power supply, and I obtained same results for either of these cases.
When measuring same DUT using diifferent OTII device, the voltage drops are much lower (up to 0.18V drop):
Could it be that the voltage regulator of the OTII is damaged?