I have a question of NI6250 board. The problem is I got a test fixture with BNC cable connected to NI5112. I don't understand why I got 0.38 micro Amp. in BNC cable using DMM and 0.033ma from the node of 100ohm to test fixture ground and 0.01 micro Ampere. across 100ohm. Is there some that I need to know what is going on inside the operational amplifer from the posiive side to negative side.
I have attached files for better understanding.
I am in an urgent . Would you please help me to solve it quickly. I am appreicate your help.