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Electronic Devices - Operational Amplifiers

Exercise : Operational Amplifiers - General Questions
31.

Refer to the given figure. The op-amp has a unity-gain bandwidth of 3 MHz. Determine the BW of the circuit.

3 MHz
30 kHz
112.4 kHz
infinite in width
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
A practical op-amp has very ________ input impedance, very ________ output impedance, very ________ open-loop voltage gain, and a ________ bandwidth.
high, low, high, wide
high, high, low, narrow
low, high, high, wide
low, low, low, wide
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
This circuit is referred to as a(n) ________.

inverting amplifier
noninverting amplifier
unity follower
integrator
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
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.
35.
What is the level of the roll-off in most op-amps?
–6 dB / decade
–20 dB / octave
–6 dB / decade or –20 dB / octave
–20 dB / decade or –6 dB / octave
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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