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

  • The primary function of the oscillator in an isolation amplifier is to


  • Options
  • A. convert dc to high-frequency ac
  • B. convert dc to low-frequency ac
  • C. rectify high-frequency ac to dc
  • D. produce dual-polarity dc voltages for the input to the demodulator

  • Correct Answer
  • convert dc to high-frequency ac 

    • Special-Purpose Op-Amp Circuits problems

    Search Results

    • 1. An instrumentation amplifier has a high

    • Options
    • A. output impedance
    • B. power gain
    • C. CMRR
    • D. supply voltage
      • Discuss
    • 2. Circuits that shift the dc level of a signal are called

    • Options
    • A. limiters
    • B. clampers
    • C. peak detectors
    • D. dc converters
      • Discuss
    • 3. In the classic three-op-amp instrumentation amplifier, the differential voltage gain is usually produced by the

    • Options
    • A. first stage
    • B. second stage
    • C. mismatched resistors
    • D. output op-amp
      • Discuss
    • 4. 

      Which circuit is known as a current-to-voltage converter?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 5. 
      Refer to Figure 20-2. This circuit is a setup for

    • Options
    • A. an antilog amplifier
    • B. a constant-current source
    • C. an instrumentation amplifier
    • D. an isolation amplifier
      • Discuss
    • 6. 

      Refer the given circuits. Which circuit is known as an OTA?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 7. 

      This circuit is a setup for


    • Options
    • A. an antilog amplifier
    • B. a constant-current source
    • C. an instrumentation amplifier
    • D. an isolation amplifier
      • Discuss
    • 8. When using an OTA in a Schmitt-trigger configuration, the trigger points are controlled by

    • Options
    • A. the Iout
    • B. the IBIAS
    • C. the Vout
    • D. both Iout and IBIAS
      • Discuss
    • 9. 

      Which circuit is known as a voltage-to-current converter?


    • Options
    • A. a
    • B. b
    • C. c
    • D. d
      • Discuss
    • 10. 

      This circuit is a setup for


    • Options
    • A. an antilog amplifier
    • B. a constant-current source
    • C. an instrumentation amplifier
    • D. an isolation amplifier
      • Discuss

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