i build a transimpedance amplifier for a sensor. Under point five I read in the description of the demoboard that when I use a high impedance sensor I have to place a 100 Ohm resistor on the probe tip. I don't understand where I have to put this resistor excatly?Shall it be parallel or in series?
And I also don't understand the function of the R1 find in the shematic of the description:
It would be very kind if somebody can help me.