Comparators are designed to compare two analog voltage inputs and produce a digital output based on the comparison result. They are commonly used in electronic circuits to detect changes in voltage levels, perform signal conditioning, and make decisions based on voltage thresholds. Comparators have high gain and are typically used in applications such as voltage level detection, window detectors, zero-crossing detectors, and waveform shaping. Higher-performance Comparators with faster response times, wider voltage ranges, lower input offset voltages, and additional features such as built-in hysteresis tend to have higher price points compared to basic Comparators with standard functionalities. When purchasing Comparators, consider the specific requirements of your application. Determine the number of channels needed, voltage range compatibility, response time requirements, and input offset voltage tolerance for accurate voltage comparison. Evaluate features like built-in hysteresis for noise immunity and stability in signal transitions.