A certain inverting amplifier has a closed-loop voltage gain of 25. The OP-amp has an open-loop voltage gain of 100,000. If an OP-amp with an open-loop voltage gain of 200,000 is substituted in the arrangement, the closed-loop gain

A) doubles B) drops to 12.5 C) remains at 25 D) increases slightly

Answer & Solution

Correct Answer: Option C

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2 Comments

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Ab Wahid 2 years ago

The closed loop gain of the op- amp is independent of open loop gain. The closed loop gain is decided by the value of passive elements like resistors ( Rf and Rin).

عبد الحكيم 6 years ago

QII The common-mode rejection ratio (CMRR) of an op-amp is:

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A certain inverting amplifier has a closed-loop voltage gain of 25...

A certain inverting amplifier has a closed-loop voltage gain of 25. The OP-amp has an open-loop voltage gain of 100,000. If an OP-amp with an open-loop voltage gain of 200,000 is substituted in the arrangement, the closed-loop gain

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