Electronics - Operational Amplifiers

Exercise :: Operational Amplifiers - Filling the Blanks

11. 

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The input voltage must be ______ in the given circuit to obtain the given output voltage.

A. 343 mV
B. 400 mV
C. 480 mV
D. 600 mV

Answer: Option B

Explanation:

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12. 

The voltage required to force the differential output to zero is called _______.

A. input-offset current
B. input-offset voltage
C. input bias current
D. slew rate voltage

Answer: Option B

Explanation:

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13. 

If the input to a comparator is a sine wave, the output is a(n) _________.

A. ramp voltage
B. sine wave
C. sawtooth wave
D. rectangular wave

Answer: Option D

Explanation:

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14. 

The common-mode rejection ratio (CMMR) is the ratio of _____ to ______.

A. the differential voltage gain, the common-mode voltage gain
B. the differential power gain, the common-mode power gain
C. the ideal voltage gain, the actual voltage gain
D. signal voltage, noise voltage

Answer: Option A

Explanation:

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15. 

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The voltage gain is ______ for the amplifier in the given circuit.

A. –4
B. –5
C. –6
D. –7

Answer: Option C

Explanation:

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