Texas Instruments LM393M Dual Comparator, 1.3µs, ±1V to ±18V, SOIC-8

The Texas Instruments LM393M/NOPB is a low-power, dual-precision analogue comparator engineered for reliable operation across a wide voltage range. With an impressively low offset voltage of just 3mV maximum, it ensures accurate signal comparison critical for sensitive measurement and control circuits. A key advantage is its ability to operate from a single power supply, with the input common-mode voltage range extending down to ground, simplifying design in single-rail systems. Operation from split (dual) supplies is equally supported.

Power efficiency is a hallmark, with a low supply current drain that remains stable regardless of the supply voltage magnitude. This comparator is designed for direct interfacing with TTL and CMOS logic families. When used with dual supplies, it can also interface directly with MOS logic, where its minimal power consumption offers a significant benefit over standard comparators.

Key Features & Specifications

• Precision Performance: Features a low input offset voltage (±3mV max) and very low input bias (25nA) and offset currents (±5nA).
• Wide Supply Range: Operates from ±1V to ±18V, offering exceptional flexibility for various system voltages.
• Fast Response: A rapid propagation delay of 1.3 microseconds ensures quick decision-making in dynamic circuits.
• Versatile Output: The output is compatible with CMOS, DTL, ECL, MOS, and TTL logic families.
• Robust Inputs: The differential input voltage range is equal to the full power supply voltage.
• Green Product: Manufactured as a green product with no antimony or bromine (Sb/Br).

Housed in a compact, surface-mount SOIC-8 package, this device is ideal for space-constrained applications. It is suitable for industrial environments, with an operating temperature range of 0°C to 70°C.