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Home ‣ Digital Electronics ‣ Interfacing to the Analog World Comments
  • Question

  • A data acquisition system may communicate via two common buses: the data bus and the control bus.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 

    • Interfacing to the Analog World problems

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    • 1. When the inputs of a four-bit D/A converter are connected to a binary up-counter, the output looks like an upward sloping line.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. A sample-and-hold circuit is used in D/A conversion.

    • Options
    • A. True
    • B. False
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    • 3. The current across the MSB "rung" of a 4-bit R/2R ladder DAC if the reference voltage is 5 v and R is 8 Ω is 625 µA.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. In a digital storage scope, when memory is full, the next data point is lost.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. The amount of deviation of the measured step size from the ideal step size is a measure of linearity.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. The output of an analog-to-digital converter is a voltage level.

    • Options
    • A. True
    • B. False
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    • 7. When the analog input to a tracking A/D converter is at a constant level, the digital output will oscillate.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. A DAC is monotonic if its output increases as its binary input is incremented from one value to the next.

    • Options
    • A. True
    • B. False
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    • 9. To be useful, A/D or D/A converters must have meaningful representation of the analog quantity and a digital representation and the digital quantity as an analog representation.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. When a DAC output shows a deviation of the measured step size from the ideal step size, this error is called nonlinearity.

    • Options
    • A. True
    • B. False
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