Electronics and Communication Engineering - Exam Questions Papers - Discussion

Discussion Forum : Exam Questions Papers - Exam Paper 12 (Q.No. 23)
23.
In the following circuit , the comparator output in log: "I" if V1 > V2 and is logic "0" otherwise. The D/A conversion is done as per the relations VDAC = 2n-2 Volts, where b3 (MSB), b2, b1 and b0 (LSB) are the counter outputs. The counter starts from the clear state

The stable reading of the LED display is
06
07
12
13
Answer: Option
Explanation:

Using the given VDAC relation we can get tc

Thus stable reading of LED is 6.5 x 2 = 13.

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