Fidn the gain(s) of an upper critical frequency op-amp...

Question

I have an upper critical frequecny of an op-amp's open loop response is 300 Hz. If the midrange gain is 180,000,

what is the ideal gain at 300 Hz?

What's the actual gain?

and is the open loop band with 300 mHz?

Answer 1

1. 3dB down from 180k, or 0.7*180k = 126k

2. 180k open loop

3. bandwidth is 300 Hz at open loop.

Gain-BW product is 180k*300 = 54 MHz

Watch out for case

mHz is not MHz !!!