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Digital ElectronicsADC & DAC

For an ideal monotonic DAC, increasing the digital input code by one count should?

  • ANever cause the analog output to move in the opposite direction
  • BAlways force the output to zero
  • CReverse the output polarity every step
  • DProduce exactly two output transitions
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Correct Answer: A. Never cause the analog output to move in the opposite direction
Explanation: Monotonicity means the analog output never reverses direction when the input code changes monotonically in one direction.
Reference: Standard digital electronics: DAC monotonicity
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