Texas Instruments LMV7239M7X

Overview

LMV7239M7X from Texas Instruments is a rail-to-rail input, push-pull output voltage comparator optimized for ultra-low-power, high-speed single-supply operation. It delivers 75 ns propagation delay at 5 V with only 65 µA supply current, supports 2.7–5.5 V supply range, and features ±0.2 V beyond-rail input common-mode range - enabling ground- and supply-sensing in battery-powered systems.

For engineers reviewing the LMV7239M7X datasheet, LMV7239M7X pinout, LMV7239M7X application, or LMV7239M7X equivalent, key selection criteria include its push-pull output eliminating external pull-up resistors, guaranteed 75-ns timing at 100-mV overdrive, rail-to-rail input operation down to 2.7 V, and availability in space-constrained SC70-5 packaging.

Technical Context

The LMV7239M7X uses complementary PNP/NPN input stages to achieve > rail-to-rail common-mode input range (−0.2 V to V_CC + 0.2 V), allowing direct sensing of signals referenced to ground or supply rails. Its push-pull output stage provides fast 1.2 ns rise/fall times (10%–90%) into 15 pF load at 5 V, with sourcing/sinking capability up to 55 mA/60 mA respectively.

Propagation delay remains stable across temperature (−40°C to +85°C) and supply voltage (2.7–5.5 V), varying only ±5 ns over 20–100 mV input overdrive. Input offset voltage is ±1 mV (typ) at 5 V, and CMRR reaches 67 dB - critical for precision threshold detection in noisy environments.

Key Specifications

Pinout & Package

LMV7239M7X is packaged in a 5-pin SC70 (DGK) package measuring 2.00 mm × 1.25 mm, optimized for ultra-compact portable designs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV7211IDBVR and MAX9060AXK+T, the LMV7239M7X uniquely balances ultra-low power (65 µA), fast timing (75 ns), and push-pull drive in SC70-5 - making it optimal for compact, long-life, medium-speed comparator functions where BOM simplicity and supply flexibility are prioritized.

Availability

LMV7239M7X is available at Aetrix Electronics and suitable for portable power monitoring, high-speed zero-crossing detection, window comparator for sensor thresholds, and crystal oscillator buffer applications requiring stable component supply across production lifecycles.

Supply support for LMV7239M7X 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 precision analog, power management, and signal chain solutions.

The LMV7239M7X belongs to TI's ultra-low-power, high-speed comparator product line, designed specifically for battery-operated instrumentation, portable medical devices, and energy-efficient industrial sensing systems.

FAQ

What is the maximum operating temperature range for the LMV7239M7X?

The LMV7239M7X is specified for operation from −40°C to +85°C ambient temperature. This range is validated per TI's recommended operating conditions and supported by thermal metrics including junction-to-ambient resistance (R_θJA = 478°C/W for SC70). The device maintains 75 ns propagation delay and 65 µA supply current performance across this full industrial temperature range.

Does the LMV7239M7X require an external pull-up resistor on its output?

No, the LMV7239M7X does not require an external pull-up resistor because it features a push-pull output stage. Unlike the open-drain LMV7235, the LMV7239M7X actively drives both high and low states - sourcing up to 55 mA and sinking up to 60 mA at 5 V. This eliminates BOM components and simplifies layout in logic-level interfacing and load-switching applications.

Can the LMV7239M7X operate from a 2.7-V single supply?

Yes, the LMV7239M7X is fully specified to operate from 2.7 V to 5.5 V single supply. At 2.7 V, it delivers 96 ns propagation delay (20 mV overdrive, 15 pF load) and 52 µA supply current, maintaining rail-to-rail input operation from −0.2 V to 2.9 V. This makes it suitable for direct connection to partially discharged lithium batteries or unregulated 3.3-V rails.

What is the input common-mode voltage range of the LMV7239M7X?

The LMV7239M7X has a beyond-rail input common-mode voltage range of −0.2 V to V_CC + 0.2 V. This is achieved via complementary PNP/NPN input stages and enables direct sensing of signals referenced to ground (e.g., battery negative terminal) or to V_CC (e.g., supply rail monitors), without external level-shifting circuitry.

Is the LMV7239M7X pin-compatible with the LMV7235M7X?

Yes, the LMV7239M7X and LMV7235M7X share identical 5-pin SC70 (DGK) pinouts and package dimensions (2.00 mm × 1.25 mm). Both have V_OUT, V₋, IN⁺, IN⁻, and V₊ assigned to pins 1–5 respectively. However, their output architectures differ: LMV7239M7X uses push-pull while LMV7235M7X uses open-drain - requiring schematic and layout review before substitution.