An internally compensated op amp has a dc open-loop gain of 106 V/V and an AC open-loop gain of 40 dB at 10 kHz. Estimate its gain–bandwidth product and its expected gain at 1 kHz.
(a) 0.1 MHz and -60 db
(b) 10 MHz and -60 db
(c) 10 MHz and 60 db
(d) 1 MHz and 60 db
The question was asked during an interview for a job.
I want to ask this question from Effect of Finite Open-Loop gain and Bandwidth on Circuit Performance topic in section Operational Amplifiers of Electronic Devices & Circuits