Correct option is A
Clamp diodes in comparators are used to
protect the operational amplifier (op-amp) from damage due to excessive input voltage. These diodes limit the voltage applied to the op-amp’s input terminals, preventing it from exceeding the safe operating range.
How Clamp Diodes Work in a Comparator:
·
Limiting Input Voltage – If the input voltage exceeds the op-amp’s rated voltage, the diodes
clamp it to a safe level.
·
Protecting from Overvoltage – Prevents damage due to high voltage spikes or transients.
·
Maintaining Reliable Operation – Ensures the comparator functions correctly without signal distortion.
