Electronics - Operational Amplifiers

Exercise :: Operational Amplifiers - Filling the Blanks

1. 

A PLL can be used as a(n) ___________.

A. series voltage regulator
B. frequency multiplier
C. relaxation oscillator
D. Schmitt trigger

Answer: Option B

Explanation:

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2. 

Common-mode signals have _____.

A. the same amplitude
B. the same phase
C. the same frequency
D. All of the above

Answer: Option D

Explanation:

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3. 

A circuit that has an output equal to the algebraic sum of the inputs is called a(n) ______ .

A. integrator amplifier
B. summing amplifier
C. differential amplifier
D. voltage multiplier

Answer: Option B

Explanation:

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4. 

Switching voltage regulators have ______ than linear regulators.

A. longer life
B. simpler circuitry
C. greater efficiency
D. lower cost

Answer: Option C

Explanation:

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5. 

A ______ is not a multivibrator.

A. one-shot
B. flip-flop
C. VCO
D. bistable

Answer: Option A

Explanation:

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