Texas Instruments LMV7235M7

Overview

LMV7235M7 from Texas Instruments is an ultra-low-power, rail-to-rail input comparator with open-drain output, designed for single-supply operation from 2.7 V to 5.5 V. It delivers 75 ns propagation delay at 5 V, consumes only 65 µA supply current, and supports input common-mode voltage from −0.2 V to V₊ + 0.2 V - enabling ground- and supply-sensing in portable battery-powered systems.

For engineers reviewing the LMV7235M7 datasheet, LMV7235M7 pinout, LMV7235M7 application, or LMV7235M7 equivalent, this page provides verified functional context, package-specific terminal mapping, real-world timing behavior under load, level-shifting capability via external pull-up, and validated alternatives for low-voltage, high-speed threshold detection.

Technical Context

The LMV7235M7 uses a complementary PNP/NPN input stage to achieve rail-to-rail input operation with extended common-mode range (−0.2 V to V₊ + 0.2 V). Its open-drain output requires an external pull-up resistor, enabling wired-OR logic and flexible level shifting - e.g., interfacing 5-V logic to 3.3-V or 1.8-V domains.

Propagation delay remains stable across temperature (−40°C to +85°C) and supply voltage (2.7 V–5.5 V), with typical 75 ns at 5 V/20 mV overdrive and 15 pF load. Input offset voltage is ±1 mV (typ), and input bias current stays below 400 nA (max) - critical for high-impedance sensor interface applications.

Key Specifications

Pinout & Package

LMV7235M7 is packaged in a 5-pin SOT-23 (DBV) with 2.90 mm × 1.60 mm body size, optimized for space-constrained PCB layouts in portable electronics.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar comparator applications.

Compared with LMV7235M7, LMV7235M5X offers identical functionality in a smaller SC70 package for space-critical designs, while TLV3604DBVR trades ultra-low power for faster switching and integrated push-pull drive - making LMV7235M7 optimal for battery longevity and level-shifting flexibility.

Availability

LMV7235M7 is available at Aetrix Electronics and suitable for portable power management, high-speed line reception, zero-crossing detection, and window comparator applications requiring stable component supply across automotive infotainment, medical wearables, and industrial IoT endpoints.

Supply support for LMV7235M7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog and embedded processing technologies, with leadership in low-power signal chain components.

The LMV7235M7 belongs to TI's LMV72xx ultra-low-power comparator family, engineered specifically for battery-operated devices demanding nanosecond timing accuracy without compromising energy efficiency.

FAQ

What is the maximum capacitive load the LMV7235M7 can drive while maintaining 75 ns propagation delay?

The LMV7235M7 maintains its 75 ns (typ) propagation delay at 5 V with a 15 pF load, as specified in the Electrical Characteristics table. At 20 pF, delay increases to ~82 ns; beyond 30 pF, rise time degrades significantly due to RC time constant with external pull-up. For loads >20 pF, reduce pull-up resistance or add a buffer stage - LMV7235M7 itself does not specify guaranteed delay above 15 pF.

Can the LMV7235M7 operate with V₋ = −2.5 V and V₊ = +2.5 V for true split-supply applications?

Yes - the LMV7235M7 supports split supplies as long as total supply voltage remains within 2.7 V to 5.5 V. With V₋ = −2.5 V and V₊ = +2.5 V, V_S = 5 V satisfies recommended conditions. Input common-mode range extends to −2.7 V to +2.7 V, covering full rail-to-rail operation. Output remains open-drain, sinking to V₋, so pull-up must connect to a positive rail (e.g., +2.5 V or another logic supply).

Does the LMV7235M7 have built-in hysteresis, or must it be added externally?

The LMV7235M7 has no internal hysteresis. Hysteresis must be added externally using positive feedback - either via resistor network on the non-inverting input (for non-inverting configuration) or on the inverting input (for inverting configuration). The datasheet provides design equations and examples (Figures 19–20) to calculate trip points and hysteresis width based on resistor values.

What is the output leakage current of the LMV7235M7 when V_OUT is high-impedance (transistor off)?

The LMV7235M7 specifies output leakage current (I_LEAKAGE) as 3 nA (max) at 25°C and V_S = 5 V. This value represents the maximum current flowing into or out of the V_OUT pin when the internal FET is fully off - critical for minimizing error in high-impedance pull-up networks (e.g., 1 MΩ pull-up adds <3 mV offset).

Is the LMV7235M7 RoHS-compliant and halogen-free?

Yes - the LMV7235M7 is RoHS-compliant (per TI's official product folder and packaging data) and meets JEDEC JS709B halogen-free requirements. Lead finish is NiPdAu, and the SOT-23 (DBV) package uses matte tin lead plating. Full compliance documentation is available in TI's Quality & Environmental section for SNOS532O.