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Digital ElectronicsADC & DAC

For an ideal 8-bit DAC with a 5.12 V full-scale range interpreted over 256 equal steps, one LSB corresponds to?

  • A2 mV
  • B10 mV
  • C20 mV
  • D50 mV
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Correct Answer: C. 20 mV
Explanation: Using 2^8 = 256 equal steps, 5.12 V / 256 = 0.02 V = 20 mV per LSB.
Reference: Standard digital electronics: ideal DAC resolution
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