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Interfacing to the Analog World problems

  • 1. A light bulb and a switch are examples of an analog circuit.

  • Options
  • A. True
  • B. False
    • Discuss
  • 2. A summing op-amp can be used for DAC.

  • Options
  • A. True
  • B. False
    • Discuss
  • 3. Voltage-to-frequency ADC is more complicated than other ADCs.

  • Options
  • A. True
  • B. False
    • Discuss
  • 4. One form of a sigma/delta modulator circuit is designed to convert a continuous analog signal into a modulated bit stream (A/D).

  • Options
  • A. True
  • B. False
    • Discuss
  • 5. Flash A/D converters depend on an input clock pulse to perform each conversion.

  • Options
  • A. True
  • B. False
    • Discuss
  • 6. The time required to complete a conversion cycle is called conversion time.

  • Options
  • A. True
  • B. False
    • Discuss
  • 7. An operational amplifier is used as a comparator.

  • Options
  • A. True
  • B. False
    • Discuss
  • 8. In a counter-ramp A/D converter, the end-of-conversion line must be tied back to the clear input of the counter to change the circuit to perform continuous conversions.

  • Options
  • A. True
  • B. False
    • Discuss
  • 9. When analog inputs from several sources are to be converted, a multiplexing technique can be used so that one ADC may be time-shared.

  • Options
  • A. True
  • B. False
    • Discuss
  • 10. A D/A converter changes things such as temperature variations into digital quantities.

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

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