An inverting amplifier with nominal gain of 20 V/V employs an op amp having a dc gain of 104 and a unity-gain frequency of 106 Hz. What is the 3-dB frequency f3dB of the closed-loop amplifier?

An inverting amplifier with nominal gain of 20 V/V employs an op amp

1.	An inverting amplifier with nominal gain of 20 V/V employs an op amp having a dc gain of 104 and a unity-gain frequency of 106 Hz. What is the 3-dB frequency f3dB of the closed-loop amplifier?
A.	2 23.8 kHz
B.	2 47.6 kHz
C.	2 71.4 kHz
D.	2 95.2 kHz
Answer» C. 2 71.4 kHz

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An inverting amplifier with nominal gain of 20 V/V employs an op amp having a dc gain of 104 and a unity-gain frequency of 106 Hz. What is the 3-dB frequency f3dB of the closed-loop amplifier?

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