Comparator ICs are integrated circuits designed to compare two input voltages or signals and determine which one is higher or lower. They convert the comparison result into a corresponding output state, making them useful for detecting voltage levels, thresholds, and changes in electrical signals.

These ICs are commonly used in voltage monitoring, battery management, signal detection, zero-crossing circuits, oscillators, switching applications, motor controls, and industrial automation. They are available with features such as high-speed operation, low input offset voltage, low power consumption, multiple channels, and wide operating voltage ranges, providing reliable signal comparison for analog and mixed-signal applications.