special-purpose-op-amp-circuits electronics question and answers -Page 2

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Special-Purpose Op-Amp Circuits problems

1.

Which circuit is known as a voltage-to-current converter?
Options
A. a
B. b
C. c
D. d

Also asked in:

Correct Answer: b

2.

This circuit is a setup for
Options
A. an antilog amplifier
B. a constant-current source
C. an instrumentation amplifier
D. an isolation amplifier

Correct Answer: an instrumentation amplifier

3. Isolation amps are named as such because they are sealed for protection from outside environmental damage.
Options
A. True
B. False

Correct Answer: False

4. Clampers are often called peak detectors.
Options
A. True
B. False

Correct Answer: False

5. OTA stands for Operational Transistor Amplifier.
Options
A. True
B. False

Correct Answer: False

6. Typical isolation amplifiers use optical coupling.
Options
A. True
B. False

Correct Answer: False

7. One of the principal areas of application for an isolation amplifier is power plant instrumentation.
Options
A. True
B. False

Correct Answer: True

8. The main purpose of an instrumentation amplifier is to amplify small signals riding on large common-mode voltages.
Options
A. True
B. False

Correct Answer: True

9. An isolation amplifier provides ac isolation between input and output.
Options
A. True
B. False

Correct Answer: False

10. An OTA is primarily a current-to-voltage amplifier.
Options
A. True
B. False

Correct Answer: False

First 2 3 4

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