Electronics and Communication Engineering - Digital Electronics - Discussion

Discussion Forum : Digital Electronics - Section 1 (Q.No. 26)
26.
A 12 bit ADC is used to convert analog voltage of 0 to 10 V into digital. The resolution is
2.44 mV
24.4 mV
1.2 V
none of the above
Answer: Option
Explanation:

.

Discussion:
11 comments Page 1 of 2.

Akshata said:   6 years ago
@All.

Why you are multiply by 1000. It is not necessary;

10/2^12-1 = 2.44mv.

Formula =E(v)/2^n-1 (n=no of bits).
(1)

Faiyaz said:   8 years ago
@Deepak.

Because option has given in mv.

Deepak said:   8 years ago
Why 1000?

Explain it.

Arun Shunmugam said:   8 years ago
Thank you all for explaining it.

Rishi Ram Panth said:   8 years ago
Thank you so much for all.

Deepshikha said:   8 years ago
Formula used : R=V/(2^n)-1.

Where R= resolution.
V=voltage.
N =bit used.

Sameer said:   9 years ago
But, the answer should be in the form of mV that's why he multplyed by 1000.
(1)

Ansu said:   9 years ago
Because in question, it's given v.

Hareesh babu said:   1 decade ago
But answer is given by mv that why multiply by 1000.

Dilip N said:   1 decade ago
10/(2^12 - 1) is 0.002442.

When you multiply with 1000 we get 2.442? How come it is 2.44m?


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