Digital Electronics - Interfacing to the Analog World - Discussion
Discussion Forum : Interfacing to the Analog World - General Questions (Q.No. 54)
54.
A certain digital-to-analog converter has a step size of 0.25 V and a full-scale output of 7.75 V. Determine the percent of resolution and the number of input binary bits.
Discussion:
1 comments Page 1 of 1.
Lawahed said:
8 years ago
step size = full scale /2^n-1.
0.25 = 7.75/2^n-1.
2^n-1 = 31.
Resolution = 1/2^n-1 * 100%.
= 3.23%.
2^n-1 = 31,
n = 5 bit.
0.25 = 7.75/2^n-1.
2^n-1 = 31.
Resolution = 1/2^n-1 * 100%.
= 3.23%.
2^n-1 = 31,
n = 5 bit.
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