Electronics - Operational Amplifiers

Exercise :: Operational Amplifiers - General Questions

41. 

The common-mode voltage gain is

A. smaller than differential voltage gain
B. equal to voltage gain
C. greater than differential voltage gain
D. None of the above

Answer: Option A

Explanation:

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42. 

How many logic states does an S-R flip-flop have?

A. 2
B. 3
C. 4
D. 5

Answer: Option C

Explanation:

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43. 

An output that is proportional to the addition of two or more inputs is from which type of amplifier?

A. differentiator
B. difference
C. summing
D. analog subtractor

Answer: Option C

Explanation:

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44. 

In a PLL, to obtain lock, the signal frequency must:

A. come within the lock range
B. be less than the capture frequency
C. come within the capture range
D. be greater than the capture frequency

Answer: Option C

Explanation:

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45. 

An ideal amplifier should have:

A. high input current
B. zero offset
C. high output impedance
D. moderate gain

Answer: Option B

Explanation:

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