LMV339IRUCR

Overview

The LMV339IRUCR is a quad general-purpose low-voltage comparator manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 5.5 V and features four independent channels in a 14-pin X2QFN package. Key electrical specifications include a propagation delay of 200 ns, a maximum input offset voltage of 7 mV, and an input bias current of 250 nA. The device draws 75 µA of operating current per channel and supports open-drain outputs with a sink capability of 10 mA. It functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Quad configuration providing four independent low-voltage comparators in a single integrated circuit
• Low power consumption design optimized for battery-operated applications
• Rail-to-rail input capability allowing operation near the negative supply rail
• Open-drain output structure facilitating flexible logic level interfacing

Applications

• Battery-powered monitoring systems requiring low quiescent current
• Threshold detection circuits in portable electronic devices
• Temperature sensing interfaces using thermistors or sensors
• Voltage supervision and reset circuits in microcontroller systems

Procurement Notes

Verify the specific suffix IRUCR corresponds to the 14-pin X2QFN package and tape-and-reel packaging format. Confirm that the component meets RoHS compliance requirements for your target market. Ensure the ordering quantity aligns with standard reel sizes provided by Texas Instruments distributors. Cross-reference the manufacturer part number with official TI documentation to validate authenticity and revision status before procurement.

Selection Notes

Select this component when a quad comparator solution is required with low voltage operation between 2.7 V and 5.5 V. It is suitable for designs prioritizing low power consumption over high-speed performance, given its 200 ns propagation delay. The open-drain output requires external pull-up resistors for proper logic level generation. Consider the X2QFN package constraints regarding thermal dissipation and PCB layout space availability.

Part Context

The LMV339 series belongs to Texas Instruments' family of low-voltage analog comparators, serving as a modern alternative to legacy parts like the LM339. Unlike the LM339 which typically requires higher supply voltages, the LMV339 variant is optimized for single-supply operations down to 2.7 V. This places it in the general-purpose comparator category, bridging the gap between precision instrumentation and basic switching applications in compact form factors.

Replacement Considerations

Direct pin-compatible replacements include other LMV339 variants such as LMV339IDR (SOIC-14) or LMV339IPWR (TSSOP-14), provided the package footprint matches the design. Verify that substitute components maintain the same 2.7 V to 5.5 V operating range and 200 ns response time characteristics.