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Digital ElectronicsADC & DAC

An ideal 10-bit ADC has an input range from 0 to 5.12 V divided into 1024 equal code steps. The nominal voltage represented by one LSB is?

  • A0.5 mV
  • B5 mV
  • C10 mV
  • D20 mV
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Correct Answer: B. 5 mV
Explanation: An ideal 10-bit converter has 2^10=1024 steps. Thus one LSB = 5.12 V/1024 = 0.005 V = 5 mV.
Reference: Standard digital electronics: ADC resolution
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