Exercise: Operational Amplifiers

Questions for: Operational Amplifiers

An inverting amplifier has an input impedance equal to the feedback resistor Rf.
A:
True
B:
False
C:
D:
Answer: B
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The main feature of the differential amplifier is the ________ gain when opposite signals are applied to the inputs as compared to the ________ gain resulting from common inputs.
A:
very large, large
B:
very small, large
C:
very small, very large
D:
very large, very small
Answer: D
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The ________ amplifier is the most widely used constant-gain amplifier circuit.
A:
inverting
B:
noninverting
C:
differential
D:
None of the above
Answer: A
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In a differential connection, the signals that are opposite at the inputs are ________ amplified, and those that are common to the two inputs are ________ amplified.
A:
slightly, slightly
B:
slightly, highly
C:
highly, highly
D:
highly, slightly
Answer: D
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The output offset voltage is determined by ________.
A:
the input offset voltage and input offset current
B:
the closed-loop gain
C:
both the input offset voltage and the closed-loop gain
D:
None of the above
Answer: A
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