Analog and Digital Converts Questions and Answers

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Showing 10 of 22 questions
Q11
Which is not an analog-to-digital (ADC) conversion error?
  • A differential nonlinearity
  • B missing code
  • C incorrect code
  • D offset
Answer: Option C
Q12
Sample-and-hold circuits in analog-to digital converters (ADCs) are designed to:
  • A sample and hold the output of the binary counter during the conversion process
  • B stabilize the comparator's threshold voltage during the conversion process
  • C stabilize the input analog signal during the conversion process
  • D sample and hold the D/A converter staircase waveform during the conversion process
Answer: Option A
Q13
A sample-and-hold circuit samples an analog value and holds it long enough for the analog-to-digital conversion to occur.
  • A TRUE
  • B FALSE
Answer: Option A
Q14
Incorrect codes are a form of output error for a digital-to-analog converter (DAC).
  • A TRUE
  • B FALSE
Answer: Option B
Q15
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.
  • A TRUE
  • B FALSE
Answer: Option B
Q16
The flash method of analog-to-digital conversion (ADC) uses comparators that compare reference voltages with the analog input voltage.
  • A TRUE
  • B FALSE
Answer: Option A
Q17
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.
  • A TRUE
  • B FALSE
Answer: Option A
Q18
The relative accuracy of a digital-to-analog converter (DAC) is determined by settling time.
  • A TRUE
  • B FALSE
Answer: Option B
Q19
The key advantage of the successive approximation analog-to-digital converter (ADC) is its conversion speed.
  • A TRUE
  • B FALSE
Answer: Option A
Q20
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.
  • A TRUE
  • B FALSE
Answer: Option A

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