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Exam Questions Papers - Engineering

Q1:

The resolution of a 4 bit counting ADC is 0.5 volts. For an analog input of 6.6 volts, the digital output of the ADC will be

A 1011

B 1101

C 1100

D 1110

ANS:D - 1110

Resolution = ⇒ = 0.5 2n = 14 = (1110) n = 4 bits.