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Home ‣ Electronics ‣ Special-Purpose Op-Amp Circuits Comments
  • Question

  • The external resistor of a typical instrumentation amplifier is used to set the ________.


  • Options
  • A. impedance
  • B. rejection ratio
  • C. gain
  • D. isolation

  • Correct Answer
  • gain 

    • Special-Purpose Op-Amp Circuits problems

    Search Results

    • 1. To construct an instrumentation amplifier, two op-amps and seven resistors are needed.

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. An isolation amplifier provides ac isolation between input and output.

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

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A voltage-to-current converter is used in applications where it's necessary to have an output load current that is controlled by _________.

    • Options
    • A. input frequency
    • B. output resistance
    • C. input voltage
    • D. input resistance
      • Discuss
    • 7. A Schmitt trigger has _________.

    • Options
    • A. no trigger points
    • B. one trigger point
    • C. two trigger points
    • D. three trigger points
      • Discuss
    • 8. The ________ amplifier is ideal for amplitude modulation since its gain is current-controlled.

    • Options
    • A. log
    • B. operational transconductance
    • C. isolation
    • D. Schmitt
      • Discuss
    • 9. A(n) ________ amplifier is used if the application requires a high sensitivity to low-level signals and protection from high-voltage associated circuits.

    • Options
    • A. basic instrumentation
    • B. operational transconductance
    • C. log/antilog amplifier
    • D. isolation
      • Discuss
    • 10. An instrumentation amplifier has extremely high ________, good ________, and high ________.

    • Options
    • A. input impedance, common-mode rejection, gain
    • B. noise factor, grounding, power
    • C. working voltages, current capacity, output impedance
    • D. output gain, output loading, power
      • Discuss

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