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Electronic Devices - Operational Amplifiers

Exercise : Operational Amplifiers - General Questions
66.
The midrange open-loop gain of an op-amp is 135 dB. With negative feedback this gain is reduced to 72 dB. The closed-loop gain is
135 dB.
72 dB.
207 dB.
63 dB.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
67.
This circuit is referred to as a(n) ________.

inverting amplifier
noninverting amplifier
differentiator
integrator
Answer: Option
Explanation:
No answer description is available. Let's discuss.
68.

Refer to the given figure. Find the midrange gain of this op-amp amplifier.

10
11
–10
–11
Answer: Option
Explanation:
No answer description is available. Let's discuss.
69.
This circuit is an example of a ________.

single-ended input
double-ended (differential) input
double-ended output
common-mode operation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
70.
What is the level of the current through the amplifier input(s) to ground in an op-amp?
Virtually zero
1.7 mA
2.8 mA
3.3 mA
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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