Hello, I am having trouble reading currents in the order Iwe = 0.5 nA.
I am using the following configuration:
Vref = 2.5 V
Variable Bias = -200mV
Vref_divider = 50%
TIA_GAIN = 350K
R_Load = 10 ohm
Any ideas ? I understand the lowest current LMP9100 is in the order of hundreds of picoamps, so It should capture 0.5 nA, right ?
Thank you.
Regards,
Alejandro