I am asking this question because I am stuck at the moment. We have to optimize the given circuit in OrCAD Optimizer, but i just cannot achieve the criteria. Before optimization with values given, maximum AC voltage amplitude gain was around 60 dB, but for no values chosen for R and C will it increase. (I should try to reach 70 dB.)

Given this is an integrator, lowering capacitance at least should increase the amplitude, but id doesn't. Is it a trick question because LT1001/LT is not capable of such amplification or am I missing something? Also, increasing supply voltage does nothing.

I have tried other op-amps and the differences of transfer functions can be seen, but what is explanation?

This is the circuit:

Just .PARAM for C value.

I would greatly appreciate any response! Thank you.