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Home > Products > Integrated Circuits (ICs) > Linear > Comparators

Texas Instruments LMV7239M5X/NOPB

Name: LMV7239M5X/NOPB
Brand: Texas Instruments
SKU: LMV7239M5X/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMV7239M5X/NOPB

Manufacturer:: Texas Instruments

Category:: Comparators

Package:: SC-74A, SOT-753

Datasheet:: LMV7239M5X/NOPB.pdf

Description:: IC COMPARATOR 1 GEN PUR SOT23-5

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Product details

Overview

LMV7239M5X/NOPB from Texas Instruments is a rail-to-rail input, push-pull output voltage comparator optimized for ultra-low-power, high-speed operation in 2.7-V to 5.5-V single-supply systems. 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 5.2 V - enabling ground- and supply-sensing in portable battery-powered applications.

For engineers reviewing the LMV7239M5X/NOPB datasheet, LMV7239M5X/NOPB pinout, LMV7239M5X/NOPB application, or LMV7239M5X/NOPB 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 range exceeding supply rails by ±200 mV, and SOT-23-5 packaging for space-constrained PCB layouts.

Technical Context

The LMV7239M5X/NOPB employs complementary PNP/NPN input stages to achieve > rail-to-rail common-mode input range (−0.2 V to V_CC + 0.1 V), allowing direct sensing of signals below ground or above V_CC. Its push-pull output stage provides active sourcing and sinking capability - delivering 25 mA sink and 55 mA source current at 5 V with sub-2 ns propagation skew.

This comparator operates across full industrial temperature (−40°C to +85°C) and supply (2.7 V to 5.5 V) ranges while maintaining 75 ns propagation delay at 100 mV overdrive and 1.2 ns rise/fall times. Input offset voltage is ±1 mV (typ), CMRR is 67 dB, and PSRR is 85 dB - supporting precision threshold detection in noisy environments.

Key Specifications

Parameter	Value and Actual Design Meaning
Propagation Delay	75 ns at 5 V, 100 mV overdrive, 15 pF load - enables reliable timing in high-speed sampling and zero-crossing detection circuits.
Supply Current	65 µA at 5 V - supports multi-year battery life in always-on portable sensors and IoT endpoints.
Input Common-Mode Range	−0.2 V to 5.2 V at 5 V supply - permits direct interface to ground-referenced or supply-referenced signals without level-shifting.
Output Type	Push-pull - eliminates need for external pull-up resistor and supports direct logic-level interfacing to MCU GPIOs or FPGAs.
Input Offset Voltage	±1 mV (typ) at 25°C - ensures accurate threshold detection in window comparators and precision voltage monitors.
Rise/Fall Time	1.2 ns (10%–90%) at 5 V - maintains signal integrity in fast edge-detection applications such as clock recovery or pulse-width measurement.
Supply Voltage Range	2.7 V to 5.5 V - compatible with Li-ion, Li-Po, and regulated 3.3 V/5 V system rails without external regulation.

Pinout & Package

LMV7239M5X/NOPB is packaged in a 5-pin SOT-23 (DBV) package with 2.90 mm × 1.60 mm body size and standard JEDEC MO-178 footprint. Pin 1 is marked with a dot; device orientation follows TI standard top-view labeling.

Pin/Terminal	Circuit Role	Design Meaning
1 - V_OUT	Output	Active push-pull output capable of sourcing up to 55 mA and sinking up to 25 mA - directly drives logic inputs or small loads without external components.
2 - V₋	Negative Supply	Ground reference terminal; must be connected to system GND in single-supply operation - supports true rail-to-rail input down to −0.2 V.
3 - IN⁺	Non-inverting Input	High-impedance input (400 nA max bias current) accepting signals from −0.2 V to 5.2 V - used for reference or signal input in inverting/non-inverting configurations.
4 - IN⁻	Inverting Input	High-impedance input matching IN⁺; differential input voltage tolerance is ±V_CC - enables robust operation with large signal swings.
5 - V₊	Positive Supply	Power supply input (2.7 V to 5.5 V); supplies internal bias and output stage - decoupling capacitor (0.1 µF) required near this pin for stability.

Key Features

Feature	Design Value
Rail-to-rail input beyond supply rails	Supports −0.2 V to V_CC + 0.1 V common-mode range - enables direct monitoring of battery voltage, ground-return currents, or supply rail margins.
Push-pull output stage	Eliminates external pull-up resistor requirement - reduces BOM count, saves board area, and improves rise time consistency vs. open-drain alternatives.
Ultra-low quiescent current	65 µA at 5 V - allows integration into always-on subsystems (e.g., wake-on-event sensors) without compromising battery runtime.
75-ns propagation delay	Guaranteed at 100 mV overdrive and 15 pF load - meets timing requirements for high-speed line receivers, ADC front-end triggers, and digital isolator inputs.
High PSRR and CMRR	85 dB PSRR and 67 dB CMRR at 5 V - rejects power rail noise and common-mode interference in mixed-signal embedded systems.

Applications

Portable Power Monitoring	High-Speed Line Receiver
Use Scenario: Real-time battery voltage tracking in Bluetooth earbuds with automatic low-battery shutdown. IC Role / Device Role / Timing Role: Comparator configured as a precision threshold detector comparing battery voltage against 3.0 V reference. Use Value: Rail-to-rail input allows direct connection to Li-ion cell (2.7–4.2 V); 75 ns response ensures immediate cutoff before brownout.	Use Scenario: Differential signal reception from RS-422 transceivers in industrial PLC I/O modules. IC Role / Device Role / Timing Role: High-speed comparator converting differential LVDS-like signals to single-ended CMOS logic for FPGA capture. Use Value: Push-pull output drives FPGA input directly; 1.2 ns rise time preserves signal edge fidelity at >10 Mbps data rates.
Zero-Crossing Detection	Window Comparator
Use Scenario: AC mains synchronization in smart energy meters using transformer-coupled 100 mV_PP sine wave input. IC Role / Device Role / Timing Role: Zero-crossing detector with hysteresis to suppress noise-induced false triggering on 50/60 Hz waveform. Use Value: −0.2 V to 5.2 V input range accepts grounded AC signal; 75 ns delay enables sub-1 µs timing resolution per half-cycle.	Use Scenario: Overvoltage/undervoltage protection in DC-DC converter feedback loop for telecom power supplies. IC Role / Device Role / Timing Role: Dual-comparator window circuit monitoring 12 V output with 11.4 V lower and 12.6 V upper thresholds. Use Value: ±1 mV offset ensures tight 1.2 V window accuracy; 65 µA supply current minimizes impact on regulation efficiency.

Portable Power Monitoring

High-Speed Line Receiver

Use Scenario: Real-time battery voltage tracking in Bluetooth earbuds with automatic low-battery shutdown.

IC Role / Device Role / Timing Role: Comparator configured as a precision threshold detector comparing battery voltage against 3.0 V reference.

Use Value: Rail-to-rail input allows direct connection to Li-ion cell (2.7–4.2 V); 75 ns response ensures immediate cutoff before brownout.

Use Scenario: Differential signal reception from RS-422 transceivers in industrial PLC I/O modules.

IC Role / Device Role / Timing Role: High-speed comparator converting differential LVDS-like signals to single-ended CMOS logic for FPGA capture.

Use Value: Push-pull output drives FPGA input directly; 1.2 ns rise time preserves signal edge fidelity at >10 Mbps data rates.

Zero-Crossing Detection

Window Comparator

Use Scenario: AC mains synchronization in smart energy meters using transformer-coupled 100 mV_PP sine wave input.

IC Role / Device Role / Timing Role: Zero-crossing detector with hysteresis to suppress noise-induced false triggering on 50/60 Hz waveform.

Use Value: −0.2 V to 5.2 V input range accepts grounded AC signal; 75 ns delay enables sub-1 µs timing resolution per half-cycle.

Use Scenario: Overvoltage/undervoltage protection in DC-DC converter feedback loop for telecom power supplies.

IC Role / Device Role / Timing Role: Dual-comparator window circuit monitoring 12 V output with 11.4 V lower and 12.6 V upper thresholds.

Use Value: ±1 mV offset ensures tight 1.2 V window accuracy; 65 µA supply current minimizes impact on regulation efficiency.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
LMV7235M5X/NOPB	Open-drain output requiring external pull-up; identical input specs, propagation delay, and supply current.	Suitable where wired-OR bus operation or level shifting (e.g., 3.3 V logic driving 5 V bus) is needed.	Select LMV7235M5X/NOPB only when open-drain functionality is explicitly required - otherwise LMV7239M5X/NOPB simplifies design.
TLV3501DBVR	Higher speed (4.5 ns), higher supply current (5.3 mA), rail-to-rail input but not beyond rails; SOIC-5/SOT-23-5 pinout differs.	Better for <10 ns timing-critical applications (e.g., laser pulse detection), but incompatible with ultra-low-power designs.	Choose TLV3501DBVR only when nanosecond-level propagation is mandatory - LMV7239M5X/NOPB remains optimal for <100 ns, <100 µA constraints.

Compared with LMV7235M5X/NOPB, LMV7239M5X/NOPB removes pull-up dependency and improves drive strength; versus TLV3501DBVR, it trades raw speed for 80× lower supply current and extended input range - making it the balanced choice for portable, precision, and cost-sensitive industrial comparators.

Availability

LMV7239M5X/NOPB is available at Aetrix Electronics and suitable for portable power monitoring, high-speed line receivers, zero-crossing detection, and window comparator applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for LMV7239M5X/NOPB 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in precision signal chain and low-power design.

The LMV7239M5X/NOPB belongs to TI's LMV72xx ultra-low-power comparator family, engineered specifically for battery-operated instrumentation, portable medical devices, and energy-efficient industrial sensors where speed, precision, and microamp-level quiescent current must coexist.

FAQ

What is the maximum supply voltage for LMV7239M5X/NOPB?

The absolute maximum supply voltage (V₊ – V₋) for LMV7239M5X/NOPB is 6 V, but the recommended operating range is 2.7 V to 5.5 V. Operation at 5.5 V ensures full specification compliance across temperature, while exceeding 6 V risks permanent damage per the Absolute Maximum Ratings table in the SNOS532O datasheet.

Does LMV7239M5X/NOPB require an external pull-up resistor?

No - LMV7239M5X/NOPB features a push-pull output stage that actively drives both high and low states, eliminating the need for an external pull-up resistor. This distinguishes it from the open-drain LMV7235M5X/NOPB and simplifies PCB layout and reduces component count in logic-level interfacing applications.

What is the input common-mode voltage range of LMV7239M5X/NOPB at 5 V supply?

At 5 V supply, the LMV7239M5X/NOPB supports an input common-mode voltage range of −0.2 V to 5.2 V - extending 200 mV below ground and 200 mV above V_CC. This is verified in Section 6.5 and 6.6 of the SNOS532O datasheet and enables direct sensing of ground-referenced or supply-referenced signals without clamping diodes or level shifters.

Can LMV7239M5X/NOPB operate from a 3.3 V supply?

Yes - LMV7239M5X/NOPB is fully specified from 2.7 V to 5.5 V, including 3.3 V operation. At 3.3 V, typical propagation delay is 82 ns (at 50 mV overdrive), supply current is ~60 µA, and output swing remains rail-to-rail (V_OH ≥ 3.05 V, V_OL ≤ 350 mV), making it ideal for 3.3 V microcontroller-based systems.

What package type is used for LMV7239M5X/NOPB?

LMV7239M5X/NOPB uses the 5-pin SOT-23 (DBV) package with 2.90 mm × 1.60 mm body dimensions and standard JEDEC MO-178 footprint. This is confirmed in the Device Information table (page 2) and Mechanical, Packaging, and Orderable Information section (page 21) of the SNOS532O datasheet.

LMV7239M5X/NOPB Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Package/Case:: SC-74A, SOT-753

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Type:: General Purpose

Number of Elements:: 1

Output Type:: Push-Pull

Voltage - Supply, Single/Dual (±):: 2.7V ~ 5.5V

:: 6mV @ 5V

Voltage - Input Offset (Max):: 0.4µA @ 5V

Current - Input Bias (Max):: -

Current - Output (Typ):: 95µA

Current - Quiescent (Max):: 67dB CMRR, 85dB PSRR

CMRR, PSRR (Typ):: 62ns

Propagation Delay (Max):: -

Hysteresis:: -40°C ~ 85°C

Operating Temperature:: -

Grade:: -

Qualification:: Surface Mount

:: SOT-23-5

LMV7239M5X/NOPB FAQ

1.How can I place an order for LMV7239M5X/NOPB through Aetrix?

Please submit a Request for Quotation (RFQ) for LMV7239M5X/NOPB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for LMV7239M5X/NOPB reliable?

The price and inventory of LMV7239M5X/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7239M5X/NOPB is usually 5 days.

3.What payment methods are accepted for LMV7239M5X/NOPB?

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LMV7239M5X/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMV7239M5X/NOPB order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for LMV7239M5X/NOPB?

For technical support, including LMV7239M5X/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7239M5X/NOPB requirements.

6.How does Aetrix verify that LMV7239M5X/NOPB is sourced from the original manufacturer or authorized distributors?

All LMV7239M5X/NOPB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LMV7239M5X/NOPB meets industry standards.

7.What is the process for return or replacement of LMV7239M5X/NOPB?

All LMV7239M5X/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV7239M5X/NOPB, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The LMV7239M5X/NOPB part is unused and in its original packaging.

Return procedure for LMV7239M5X/NOPB:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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