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

  • ________ DACs produce both positive and negative output values.


  • Options
  • A. Tristate
  • B. Double
  • C. Bipolar
  • D. Unilateral

  • Correct Answer
  • Bipolar 

    • Interfacing to the Analog World problems

    Search Results

    • 1. A DAC is ________ if its output increases as the binary input increments from one value to the next.

    • Options
    • A. monotonic
    • B. self adjusting
    • C. accurate
    • D. broken
      • Discuss
    • 2. When analog inputs from several sources are to be converted, a(n) ________ technique can be used.

    • Options
    • A. demultiplexing
    • B. multiplexing
    • C. R/2R
    • D. comparator
      • Discuss
    • 3. The primary disadvantage of the simultaneous A/D converter is ________.

    • Options
    • A. that it requires the input voltage to be applied to the inputs simultaneously
    • B. the long conversion time required
    • C. the large number of output lines required to simultaneously decode the input voltage
    • D. the large number of comparators required to represent a reasonable-sized binary number
      • Discuss
    • 4. A binary-weighter resistor DAC is practical only up to a resolution of ________.

    • Options
    • A. 10 bits
    • B. 2 bits
    • C. 8 bits
    • D. 4 bits
      • Discuss
    • 5. The fastest analog-to-digital converter is the ________.

    • Options
    • A. counter ADC
    • B. successive-approximation ADC
    • C. dual slope ADC
    • D. parallel ADC
      • Discuss
    • 6. Unused TTL inputs should be tied LOW.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. There are four different logic level ranges for TTL and CMOS: VIL, VIH, VOL, and VOH.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. ECL IC technology is faster than TTL technology.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. The speed-power product provides a basis for the comparison of logic circuits when power dissipation and propagation delay are important considerations in the selection of the type of logic to be used.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. A pull-down resistor must be used with open-collector TTL circuits.

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

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