LMV7275MFX

Overview

The LMV7275MFX is a single-channel analog comparator from Texas Instruments, characterized by rail-to-rail input capability and an open-drain output stage. It operates within a supply voltage range of 1.8 V to 5.5 V and consumes a typical operating current of 14 µA per channel. The device features a propagation delay of 800 ns and offers a maximum output sink current of 34 mA. Input specifications include a maximum offset voltage of 4 mV and an input bias current of 10 nA. It is housed in a compact SOT-23-5 package and supports operation across a temperature range of -40°C to +85°C.

Feature Summary

• Rail-to-rail input stage enables accurate signal comparison near supply rails.
• Open-drain output allows wired-OR configurations and level-shifting to voltages up to 5.5 V independent of the supply voltage.
• Low power consumption design suitable for battery-operated applications.

Applications

• Level-shifting circuits
• Wired-OR logic configurations
• Space-critical low voltage designs

Procurement Notes

Verify the specific suffix 'MFX' against official datasheets to confirm the SC-70-5 (SOT-23-5) package variant and tape-and-reel packaging format. Ensure the component matches the intended open-drain output requirement, as other variants in the series may utilize push-pull outputs. Confirm RoHS compliance status through the manufacturer's documentation before integration.

Selection Notes

Select this component when an open-drain output is required for wired-OR functionality or external pull-up voltage flexibility. It is appropriate for designs prioritizing minimal PCB area due to the small SC-70 package. Consider alternative parts if a push-pull output stage is needed for driving loads with lower power consumption, or if higher speed performance than 800 ns propagation delay is necessary.

Part Context

The LMV7275MFX belongs to the LMV727x family of rail-to-rail input low-power comparators built on submicron silicon-gate BiCMOS process. This family includes single-channel devices like the LMV7271 and LMV7275, and dual-channel versions. The LMV7275 specifically distinguishes itself with an open-drain output, whereas the LMV7271 utilizes a push-pull output stage.

Replacement Considerations

LMV7275MG/NOPB: Single-channel comparator with identical electrical characteristics but packaged in SC-70-5.

FAQ

Can the output voltage exceed the supply voltage?

Yes, the open-drain output can be pulled to any voltage up to 5.5 V, regardless of the supply voltage applied to the device.

What is the difference between LMV7275 and LMV7271?

The LMV7275 features an open-drain output stage suitable for wired-OR configurations, while the LMV7271 has a push-pull output stage.