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

  • The AD7524, a CMOS IC available from several IC manufacturers, is an eight-bit D/A converter that uses a(n) ________.


  • Options
  • A. sample-and-hold circuit
  • B. R/2R ladder network
  • C. multiplexer
  • D. 10 µs clock

  • Correct Answer
  • R/2R ladder network 

    • Interfacing to the Analog World problems

    Search Results

    • 1. The DSO ________, ________, and ________ analog waveforms.

    • Options
    • A. filters, conditions, sends
    • B. levels, stores, weighs
    • C. sends, receives, translates
    • D. digitizes, stores, displays
      • Discuss
    • 2. The delay between a change on the digital input of a DAC and the appearance of the change on the output is called settling time.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. Resolution in the analog output of a DAC is primarily dependent on the number of input binary bits.

    • Options
    • A. True
    • B. False
      • Discuss
    • 4. The main advantage of the SAR ADC method is its high speed.

    • Options
    • A. True
    • B. False
      • Discuss
    • 5. In a binary-weighted D/A converter the sum of all the currents from the binary weighted resistors flows through the operational amplifier.

    • Options
    • A. True
    • B. False
      • Discuss
    • 6. A digital voltmeter converts an analog voltage to its ________ representation.

    • Options
    • A. BCD-code
    • B. decimal
    • C. digital
    • D. alias
      • Discuss
    • 7. The figure given below represents a ________.


    • Options
    • A. successive-approximation A/D converter
    • B. dual-slope A/D converter
    • C. tracking A/D converter
    • D. dual-approximation D/A comparator
      • Discuss
    • 8. A(n) ________ converts an analog input to a digital output.

    • Options
    • A. ADC
    • B. DAC
    • C. flash converter
    • D. bipolar converter
      • Discuss
    • 9. For each bit that is added to a digital ramp ADC, the conversion time ________.

    • Options
    • A. doubles
    • B. triples
    • C. decreases by one-third
    • D. decreases by one-half
      • Discuss
    • 10. A 4-bit stairstep-ramp A/D converter has a clock frequency of 100 kHz and a maximum input of 10 V, and has 6 V applied to the input. The conversion time will be ________.

    • Options
    • A. 10 microseconds
    • B. 160 microseconds
    • C. 90 microseconds
    • D. 6250 seconds
      • Discuss

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