Can you tell me how i can do 2 electrode open circuit test by using ADuCM350 4 wire bio config 2 daughter board, i doing but it's giving me zero magnitude and zero phase value.
I'm thinking that if you do a 2 electrode open circuit measurement, you will be reading 0V from the TIA which should give you an "inf" result if you do a V/I calculation.
Below 200HZ i am getting accurate open circuit result but after 200HZ i am getting 0 magnitude 0 phase value.
can you guide me how i can fix this issue.
If you open the TIA Input (T Node), the TIA output can go in either rail so you really won't be able to get accurate result from this