Operational Amplifier Fundamentals – 4

4. For an op-amp having differential gain A_v and common-mode gain A_c the CMRR is given by :

(a) A_v+A_c (b) A_v/A_c (c) (A_v/A_c)+1
(d) A_c/A_v

Answer

Answer : (b)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Operational Amplifier Fundamentals - 3
Operational Amplifier » Exercise - 13. The open-loop gain of an op-amp available in the market may be around. (a) 10–1 (b) 101 (c) 105 (d) 102
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Operational Amplifier Fundamentals - 168
5555555555168. With a differential gain of 50,000 and a common-mode gain of 2, what is the common-mode rejection ratio? (a) –87.9 dB (b) –43.9 dB (c) 43.9 dB (d) 87.9 dB
Tags: gain, common-mode, operational, amplifier, fundamentals, differential, electronics, engineering
Operational Amplifier Fundamentals - 190
5555555555190. The voltage gain is ______ for the amplifier in the given circuit. (a) –4 (b) –5 (c) –6 (d) –7
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Operational Amplifier Fundamentals - 110
5555555555110. What is the open-loop gain of an op-amp at the gain-bandwidth product of the op-amp? (a) 200,000 (b) 50,000 (c) 200 (d) 1
Tags: op-amp, operational, amplifier, fundamentals, gain, electronics, engineering
Operational Amplifier Fundamentals - 11
Operational Amplifier » Exercise - 111. If ADM = 3500 and ACM = 0.35, the CMRR is .... (a) 1225 (b) 10,000 (c) 80 dB (d) b and c
Tags: operational, amplifier, fundamentals, exercise, cmrr, electronics, engineering

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