LM2903M – NATIONAL SEMICONDUCTOR

The National Semiconductor LM2903M is a dual differential comparator characterized by its single-supply operation and suitability for low-voltage applications. Specifically manufactured in an 8-pin SOIC SMD package, it offers a compact footprint for space-constrained PCB designs. Each comparator within the LM2903M features an open-collector output stage capable of sinking up to 20mA, with a voltage rating of 36V. Its wide operating temperature range of –25°C to 85°C makes it suitable for industrial and automotive environments. The LM2903M is commonly employed in window comparators, zero-crossing detectors, and simple A/D converters where precise threshold detection is required. Its low input bias current and high gain contribute to accurate comparison even with weak input signals, offering a cost-effective solution for basic voltage monitoring and control circuits.