Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 3 (Q.No. 4)
4.
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
1011
1101
1100
1110
Answer: Option
Explanation:

Resolution =

= 0.5

2n = 14 = (1110)

n = 4 bits.

Discussion:
2 comments Page 1 of 1.

Bharath Namakkal said:   7 years ago
=6.6/0.5
=13.2
13.2 is greater than 13
13.2>13.

Answer 14.

14 digital o/p to 1110 (8421)
Anws =1110.

Suchi said:   7 years ago
I think it's 6.6/((2^n)-1) = 0.5.

Post your comments here:

Your comments will be displayed after verification.