LMV7275MF/NOPB

Overview

The LMV7275MF/NOPB 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, consuming a typical operating supply current of 14 µA per channel. The device features a propagation delay of 75 ns and offers a high output sink current of 34 mA. Key electrical parameters include a maximum input offset voltage (Vos) of 4 mV, an input bias current (Ib) of 10 nA, and an input offset current (Ios) of 200 pA. Common-mode rejection ratio (CMRR) is specified at 46 dB, while power supply rejection ratio (PSRR) reaches 55 dB. It functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Rail-to-rail input stage enables accurate signal detection near ground and positive supply rails.
• Open-drain output configuration supports wired-OR logic and flexible level-shifting capabilities.
• Ultra-low power consumption design suitable for battery-operated and portable applications.

Applications

• Low-voltage threshold detection circuits
• Level shifting between different voltage domains
• Battery-powered monitoring systems

Procurement Notes

Verify the specific suffix 'MF' against the manufacturer's official datasheet to confirm package type and tape-and-reel specifications. Ensure the component matches the required SC-70 or SOT-23 footprint as indicated in standard documentation. Confirm RoHS compliance status through the supplier's certificate of conformity. Cross-reference the ordering part number with Texas Instruments' current product selection guide to avoid obsolete variants.

Selection Notes

Select this component when space-constrained designs require a single comparator with rail-to-rail inputs. The open-drain output is essential for interfacing with higher voltage logic levels without external components. Consider the 14 µA quiescent current for strict power budgeting. Verify that the 4 mV offset voltage meets the precision requirements of the sensing application. Ensure the 34 mA output drive capability is sufficient for the intended load.

Part Context

This device belongs to the LMV727x family of low-power comparators built on submicron silicon-gate BiCMOS process. The family includes push-pull output variants like the LMV7271 and dual-channel versions like the LMV7272. The LMV7275 specifically provides an open-drain output, distinguishing it from the push-pull models. These devices are designed for general-purpose applications requiring minimal PCB area and low standby power.

FAQ

Can the LMV7275MF/NOPB output be connected directly to a microcontroller GPIO?

Yes, provided the microcontroller GPIO voltage level is compatible with the pull-up voltage applied to the open-drain output. An external pull-up resistor is required to define the high logic state.

What is the maximum supply voltage for this comparator?

The maximum supply voltage is 5.5 V. Exceeding this limit may damage the device.