I am looking for a way to create a Transimpedance Amplifier like below (to convert current to voltage)
The problem now is how to add the current source?
The current I want is the one read from I_probe like the circuit below.
How do I transfer this current to the Amplifier without affecting the circuit below?
(The frequency of Vf_Square can be very low, just I need to record the initial current when the voltage first goes up. According the the simulation, the initial current is kept until the voltage goes back down. That initial current is what I need for the amplifier)