An op-amp is connected as a non-inverting amplifier with $R_f = 48 k\Omega$, $R_i = 2 k\Omega$, $A_{ol(mid)} = 50000$, $Z_{in} = 2 M\Omega$, $Z_{out} = 60 \Omega$.
a) Determine the attenuation, the closed loop input impedance and output impedances.
b) Given that the open loop critical frequency is $f_{c(ol)} = 200 Hz$, Determine the open loop gain at $f = 1.5 kHz$ and at $f = f_{c(ol)}$
c) Given that the critical frequency of an RC lag circuit is $f_c = 200 Hz$. Determine the phase shift at $f = 1.5 kHz$ and at $f = f_c$.
d) Determine the closed loop bandwidth and the unity gain bandwidth $f_T$.
e) Show how you will compensate for the bias current (Draw). Comment on its origin.