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

  • 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

  • Correct Answer
  • 4 bits 

    • Interfacing to the Analog World problems

    Search Results

    • 1. The fastest analog-to-digital converter is the ________.

    • Options
    • A. counter ADC
    • B. successive-approximation ADC
    • C. dual slope ADC
    • D. parallel ADC
      • Discuss
    • 2. A signal ________ is produced by sampling the signal at a rate less than the minimum rate identified by Nyquist.

    • Options
    • A. Nyquist
    • B. sampling frequency
    • C. basis
    • D. alias
      • Discuss
    • 3. ________ ADCs have a fixed value of conversion time that is not dependent on the value of the analog input.

    • Options
    • A. Substandard
    • B. Dual
    • C. Recessive-approximation
    • D. Successive-approximation
      • Discuss
    • 4. The output of the circuit in the given figure (a) at point X on figure (b) will be ________.


    • Options
    • A. 1.011 V
    • B. 2.75 V
    • C. ?1.011 V
    • D. ?2.75 V
      • Discuss
    • 5. The number of binary bits at the input of a DAC or the output of an ADC is known as ________.

    • Options
    • A. accuracy
    • B. linearity
    • C. resolution
    • D. monotonicity
      • Discuss
    • 6. 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
    • 7. 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
    • 8. 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
    • 9. ________ DACs produce both positive and negative output values.

    • Options
    • A. Tristate
    • B. Double
    • C. Bipolar
    • D. Unilateral
      • Discuss
    • 10. Unused TTL inputs should be tied LOW.

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

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