The full-scale output of a 8-bit DAC is 10 V. Find the resolution

The full-scale output of a 8-bit DAC is 10 V. Find the resolution
| The full-scale output of a 8-bit DAC is 10 V. Find the resolution for this digital to analog converter.

A. 39. 2 mV

B. 3.92 mV

C. 3.92 V

D. 0.392 V

Please scroll down to see the correct answer and solution guide.

Right Answer is: A

SOLUTION

For 8-bit DAC, we have

n = 8

and full scale output is

Vfs = 10 V

So, we get

Number of steps = 2n – 1

= 28 – 1

= 255

Hence resolution or step size is

= 39.2 m V