At what condition the digital to analog conversion is made?
A. Va > Vd
B. Va ≤ Vd
C. Va ≥ Vd
D. Va ≠ Vd
Answer:A
At what condition the digital to analog conversion is made?
A. Va > Vd B. Va ≤ Vd C. Va ≥ Vd D. Va ≠ Vd
Explanation: When Va < Vd, the output of the comparator becomes low and the AND gate is disabled. This stops the counting at that time and the digital output of the counter represents the analog input voltage. 2.