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

  • OTA stands for Operational Transistor Amplifier.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Special-Purpose Op-Amp Circuits problems

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    • 1. Clampers are often called peak detectors.

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

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. In order to sustain oscillations in a feedback oscillator, the gain should be _________ so the product of Av × B equals_______.

    • Options
    • A. reduced, one
    • B. reduced, less than one
    • C. increased, more than one
    • D. increased, much greater than one
      • Discuss
    • 4. The gate-source junction of a JFET must be ________ for proper linear operation.

    • Options
    • A. forward-biased
    • B. reverse-biased
    • C. either forward-biased or reverse-biased
    • D. neutral
      • Discuss
    • 5. The gain of a BJT is called _______ and the gain of a JFET is called _______.

    • Options
    • A. beta, alpha
    • B. transconductance, beta
    • C. beta, transconductance
    • D. transconductance, transconductance
      • Discuss
    • 6. Typical isolation amplifiers use optical coupling.

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

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

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

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

    • Options
    • A. True
    • B. False
      • Discuss

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