LM393P Dual Comparator

The LM393P Dual Comparator is a precision dual comparator designed for accurate voltage threshold detection and robust analog signal comparison across a broad range of electronic applications. Optimized for reliable operation, this device is suited to battery-powered systems, industrial controls, and sensor interfaces that require stable, repeatable switching behavior. Low supply current: 0.4 mA per comparator for energy-efficient operation in portable and low-power designs. Wide operating voltage range: 2 V to 36 V, enabling use across diverse system voltages without additional level translation. Fast response: Typical response time down to 1.3 μs for timely signal processing in dynamic environments. Open-collector outputs: Provide easy wired-AND logic connections and flexible pull-up voltage selection to match downstream logic families. Extended temperature range: −40°C to +85°C for stable performance in varying thermal conditions. Featuring a differential input stage and low offset voltage, the LM393P delivers accurate switching thresholds critical for sensor interfacing, window comparators, zero-cross detection, and over/under-voltage protection circuits. The open-collector output stage simplifies interfacing with different logic levels and allows designers to implement wired logic or open-drain style connections as required by the system. Engineered to perform reliably in noisy environments, the LM393P maintains consistent propagation delay and stable operation through well-designed input circuitry, making it a dependable choice when precise analog comparison and low power consumption are important design criteria.