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ISRO2016-ECE Digital Logic

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A $10$-bit DAC has a step size of $\text{10mV}.$
What is its Full scale O/P voltage and the percentage resolution?

  1. $10.24\text{V}, 0.2\%$
  2. $10.23\text{V}, 0.5\%$
  3. $10.23\text{V}, 0.1\%$
  4. $10.24\text{V}, 0.1\%$
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Ans is C)1023, 0.1%

Solu:

Full scale o/p 10mV*1023(2ⁿ-1)=10.23V

% resolution =(10mV÷10.23V)*100%=0.1%
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