LMV331IDCKRE4

Overview

The LMV331IDCKRE4 is a single-channel analog comparator manufactured by Texas Instruments, designed for low-voltage applications. It operates within a supply voltage range of 2.7 V to 5.5 V and consumes a typical quiescent current of 100 µA. The device features an open collector/open drain output capable of sourcing up to 10 mA per channel. Key electrical specifications include a maximum response time of 200 ns, an input offset voltage (Vos) of 7 mV, and an input bias current (Ib) of 250 nA. It is housed in a compact SC-70-5 surface-mount package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• Single-channel general-purpose analog comparator architecture optimized for low-voltage operation
• Open collector and open drain output configuration allowing flexible interfacing with various logic families
• High-speed performance characterized by a 200 ns response time for rapid signal comparison
• Extended industrial temperature rating supporting reliable function across wide thermal environments

Applications

• Battery-powered portable devices requiring minimal power consumption
• Threshold detection circuits in consumer electronics
• Signal conditioning stages in industrial control systems
• Over-voltage or under-voltage protection mechanisms

Procurement Notes

Verify the specific suffix 'E4' against the manufacturer's latest documentation to confirm compliance with RoHS directives and lead-free manufacturing standards. Ensure the SC-70-5 package dimensions match the target PCB footprint requirements. Confirm that the open-drain output interface aligns with the pull-up resistor requirements of the downstream circuitry. Validate the operating temperature range against the environmental conditions of the final assembly.

Selection Notes

Select this component when a single comparator with low quiescent current and fast propagation delay is required in space-constrained designs. The LMV331IDCKRE4 is suitable for applications where the supply voltage varies between 2.7 V and 5.5 V. Consider the open-drain output topology if level shifting or wired-OR configurations are necessary. Evaluate the 7 mV input offset voltage tolerance against the precision requirements of the sensing application.

Part Context

This part belongs to the LMV331 series of low-voltage comparators from Texas Instruments. It shares functional similarities with other members of the family but differs in packaging and specific ordering suffixes. The SC-70-5 package provides a small form factor compared to larger SOT-23 variants. It is distinct from operational amplifiers like the LMV341, as it lacks feedback compensation and is designed specifically for open-loop comparison tasks rather than linear amplification.

Replacement Considerations

LMV331IDCKR is a compatible alternative within the same series offering identical electrical characteristics and pinout compatibility.