Explanation: A comparator is some time called as voltage level detector because, for a desired value of reference voltage, the voltage level of the input can be detected. 2. Why clamp diodes are used in comparator?
A. To reduce output offset voltage
B. To increase gain of op-amp
C. To reduce input offset current
D. To protect op-amp from damage
Answer:A
Explanation: A comparator is some time called as voltage level detector because, for a desired value of reference voltage, the voltage level of the input can be detected. 2. Why clamp diodes are used in comparator?
A. To reduce output offset voltage B. To increase gain of op-amp C. To reduce input offset current D. To protect op-amp from damage
Explanation: The diodes protect the op-amp from damage due to excessive input voltage. Because of these diodes the difference input voltage of the op-amp is clamped to 0.7v or -0.7 v, hence these diodes are clamp diodes. 3. Find the non-inverting comparator