The LM393APWR is a dual differential comparator IC from Texas Instruments. It is a precision device that compares two voltage signals and outputs a logic level based on the results of the comparison between the two. The device features a high impedance input which allows it to detect and measure very small input signals with a low power dissipation. The differential inputs feature low-offset voltage, high-input impedance, and high precision. It operates from a single supply voltage between 2.7V and 18V and has an adjustable hysteresis level for improved noise immunity. The device also features an open-drain output for interchangeable polarity signals. The LM393APWR is an A-grade part and is ideal for sensing, data conversion, transconductance circuit application, etc.