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Home Digital Electronics Interfacing to the Analog World Comments

  • Question
  • ________ ADCs use no clock signal, because there is no timing or sequencing required.


  • Options
  • A. Actuator
  • B. Dual
  • C. Flash
  • D. Bipolar

  • Correct Answer
  • Flash 


  • Interfacing to the Analog World problems


    Search Results


    • 1. On a binary-weighted D/A converter the least significant binary input ________.

    • Options
    • A. connects to the smallest resistor
    • B. supplies the least voltage
    • C. connects to a 1 kΩ resistor
    • D. connects to the largest resistor
    • Discuss
    • 2. The characteristic that a change of one binary step on the input of a DAC should cause exactly one step change on the output is called ________.

    • Options
    • A. resolution
    • B. linearity
    • C. monotonicity
    • D. accuracy
    • Discuss
    • 3. The input of an analog-to-digital converter is ________.

    • Options
    • A. a voltage level
    • B. a clock pulse
    • C. a binary number
    • D. any of the above
    • Discuss
    • 4. A major application for DSP is in ________ and ________ of analog signals.

    • Options
    • A. sending, receiving
    • B. digitizing, weighting
    • C. filtering, conditioning
    • D. leveling, translating
    • Discuss
    • 5. A simultaneous A/D converter is also known as a(n) ________ A/D converter.

    • Options
    • A. flash
    • B. synchronous
    • C. comparator
    • D. asynchronous
    • Discuss
    • 6. The circuit shown below is a(n) ________.


    • Options
    • A. R/2R ladder D/A converter
    • B. four-bit decoder
    • C. binary-weighted-input DAC
    • D. four-bit A/D converter
    • Discuss
    • 7. A counter-ramp ADC uses a comparator to compare the input voltage with ________.

    • Options
    • A. a binary number
    • B. the output of a counter
    • C. the output of a DAC
    • D. a voltage divider network
    • Discuss
    • 8. A counter-ramp ADC stops counting when ________.

    • Options
    • A. the input voltage equals the DAC staircase voltage
    • B. the counter reaches a maximum count
    • C. the input voltage equals 5 volts
    • D. the DAC staircase voltage equals 5 volts
    • Discuss
    • 9. The main advantage of the tracking A/D converter over the stairstep-ramp A/D converter is that ________.

    • Options
    • A. it does not require a counter
    • B. it uses an up/down counter to indicate the polarity of the input voltage
    • C. it uses an up/down counter to measure both positive and negative voltages
    • D. it is faster
    • Discuss
    • 10. The circuit shown below is a(n) ________.


    • Options
    • A. R/2R ladder D/A converter
    • B. four-bit decoder
    • C. binary-weighted-input DAC
    • D. four-bit A/D converter
    • Discuss


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