Question

Find the ft required for internally compensated op amps to be used in the implementation of the closed loop amplifiers with dc gain of +100 V/V and 3db bandwidth of 100kHz?

(a) 1 kHz

(b) 10 kHz

(c) 100 kHz

(d) 1 MHz

This question was addressed to me by my school teacher while I was bunking the class.

My question is taken from Effect of Finite Open-Loop gain and Bandwidth on Circuit Performance in portion Operational Amplifiers of Electronic Devices & Circuits

Answer 1

Correct choice is (b) 10 kHz

For explanation I would say: None