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Electronic Devices - Operational Amplifiers

Exercise : Operational Amplifiers - General Questions
61.
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.
62.
What is the difference voltage if the inputs are an ideal in-phase signal?
The differential gain times twice the input signal.
The differential gain times the input signal.
The common-mode gain times twice the input signal.
The common-mode gain times the input signal.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
63.

Refer to this figure. The purpose of R1 and R2 is

for bias current compensation.
for input offset voltage compensation.
to set input impedance.
to set input impedance and voltage gain.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
64.

Refer to the given figure. If an input signal of –0.5 V were applied, determine the output voltage.

–5 V
5 V
10 V
–10 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
65.
Calculate the input voltage if R1 = 100 , Rf = 1 k, and Vout = 550 mV.

–50 mV
–5 mV
550 mV
50 mV
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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