Explanation: In counter type ADC counter frequency is kept low enough to give sufficient time for DAC to settle and for the comparator for respond. So, low speed is the most serious drawback. 9. Calculate the conversion time of a 12-bit counter type ADC with 1MHz clock frequent to convert a full scale input?
A. 4.095 µs
B. 4.095ms
C. 4.095s
D. None of the mentioned
Answer:A
Explanation: In counter type ADC counter frequency is kept low enough to give sufficient time for DAC to settle and for the comparator for respond. So, low speed is the most serious drawback. 9. Calculate the conversion time of a 12-bit counter type ADC with 1MHz clock frequent to convert a full scale input?
A. 4.095 µs B. 4.095ms C. 4.095s D. None of the mentioned
Explanation: conversion time = 2n -1 clock periods = (12n-1) = 4.095ms. 10. In a servo tracking A/D converter, the input voltage is greater than the DAC output signal at this condition