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Home ‣ Electronics ‣ Analog and Digital Converters Comments
  • Question

  • If we double the number of bits in our digital representation of a number from 4 to 8 bits, we double the relative accuracy of the conversion from digital to analog.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • False 

    • Analog and Digital Converters problems

    Search Results

    • 1. An 8-bit digital-to-analog converter (DAC) has a resolution of 0.125 V.

    • Options
    • A. True
    • B. False
      • Discuss
    • 2. The flash method of analog-to-digital conversion (ADC) uses comparators that compare reference voltages with the analog input voltage.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. One way to determine the resolution of a digital-to-analog converter (DAC) is to compare the ratio of one step voltage to the maximum output voltage.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The relative accuracy of a digital-to-analog converter (DAC) is determined by settling time.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. A sample-and-hold circuit samples an analog value and holds it long enough for the analog-to-digital conversion to occur.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A digital-to-analog converter (DAC) is said to be nonmonotonic if the magnitude of the output voltage increases every time the input code increases.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. A(n) ________ converts an analog input to a digital output.

    • Options
    • A. flash converter
    • B. bipolar converter
    • C. ADC
    • D. DAC
      • Discuss
    • 8. The characteristic that a change of one binary step on the input of a digital-to-analog converter (DAC) should cause exactly one step change on the output is called ________.

    • Options
    • A. resolution
    • B. monotonicity
    • C. linearity
    • D. accuracy
      • Discuss
    • 9. ________ analog-to-digital converters (ADCs) use no clock signal, because there is no timing or sequencing required.

    • Options
    • A. Actuator
    • B. Dual
    • C. Flash
    • D. Bipolar
      • Discuss
    • 10. The problems of the binary-weighted resistor digital-to-analog converter (DAC) can be overcome by using ___________.

    • Options
    • A. an 8-bit binary-weighted resistor DAC
    • B. an R/2R ladder DAC
    • C. a staircase DAC
    • D. a flash DAC
      • Discuss

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