TS391ILT Single Voltage Analogue Comparator, Low-Power, SOT-23

The TS391ILT is a low-power, single-supply voltage comparator from STMicroelectronics, engineered for reliable performance across a broad operating range. It is designed to function from a single power supply voltage spanning from 2V to 34V, with the added flexibility of dual-supply operation from ±1V to ±17V, making it highly versatile for various circuit designs.

A key feature of this component is its input common-mode voltage range, which includes ground. This is a significant advantage, allowing the comparator to handle input signals that swing down to the negative rail even when powered by a single supply, simplifying design and increasing application possibilities. The differential input voltage range is equal to the full supply voltage, providing excellent signal handling capability.

Output compatibility is another major strength. The TS391ILT features outputs that are compatible with TTL, DTL, ECL, and CMOS logic families, ensuring easy integration into mixed-signal systems and digital interfaces. With a fast response time of 1.3µs, it is suitable for applications requiring quick decision-making based on analog input levels.

Housed in a compact, surface-mount SOT-23 package with 5 pins, this single-channel comparator is ideal for space-constrained PCB designs. It operates reliably across an extensive industrial temperature range from -40°C to 125°C, ensuring stability in harsh environments.

Please Note: This is an ESD (Electrostatic Discharge) sensitive device. Always observe proper ESD handling precautions during installation and circuit assembly to prevent damage.