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

Texas Instruments LMV7235M5X

Name: LMV7235M5X
Brand: Texas Instruments
SKU: LMV7235M5X
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMV7235M5X

Manufacturer:: Texas Instruments

Category:: Comparators

Package:: SC-74A, SOT-753

Datasheet:: LMV7235M5X.pdf

Description:: IC COMPARATOR 1 GEN PUR SOT23-5

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Product details

Overview

LMV7235M5X 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 5.2 V - enabling ground- and supply-sensing in battery-powered systems.

For engineers reviewing the LMV7235M5X datasheet, LMV7235M5X pinout, LMV7235M5X application, or LMV7235M5X equivalent, key selection criteria include its open-drain architecture for wired-OR logic and level shifting, low quiescent current for extended runtime, rail-to-rail input range for full dynamic signal capture, and guaranteed 75-ns timing performance across temperature.

Technical Context

The LMV7235M5X employs a complementary PNP/NPN input stage enabling > rail-to-rail common-mode operation (−0.2 V to V_CC + 0.1 V), critical for sensing near supply rails or ground. Its open-drain output requires an external pull-up resistor, allowing flexible level translation and bus arbitration.

Propagation delay remains stable across input overdrive (75 ns at 100 mV overdrive, 89 ns at 20 mV) and temperature (80–96 ns from −40°C to 125°C at 5 V), while input offset voltage is tightly specified (±1 mV typical at 5 V, ±0.8 mV at 2.7 V) and CMRR reaches 67 dB.

Key Specifications

Parameter	Value and Actual Design Meaning
Propagation Delay	75 ns at 5 V, 100 mV overdrive, 15 pF load - enables high-speed threshold detection in sampling circuits.
Supply Current	65 µA at 5 V, 25°C - supports multi-year battery life in portable sensors and wearables.
Input Common-Mode Range	−0.2 V to 5.2 V at 5 V supply - allows direct sensing of signals below ground or above V_CC.
Output Type	Open-drain - supports wired-OR logic, I²C-compatible bus interfacing, and programmable level shifting via external pull-up.
Input Offset Voltage	±1 mV typical at 5 V - ensures accurate zero-crossing and window detection without calibration.
Supply Voltage Range	2.7 V to 5.5 V - compatible with Li-ion, Li-Po, and regulated 3.3 V/5 V rails.
ESD Rating (HBM)	±1000 V - meets industrial handling requirements without additional protection circuitry.

Pinout & Package

LMV7235M5X is packaged in a 5-pin SOT-23 (DBV) package with nominal body size 2.90 mm × 1.60 mm, optimized for space-constrained PCB layouts in portable electronics.

Pin/Terminal	Circuit Role	Design Meaning
1 - V_OUT	Open-drain output	Active-low output requiring external pull-up; enables level shifting and bus sharing.
2 - V₋	Negative supply / ground	Reference return path; supports single-supply operation with GND as V₋.
3 - IN⁺	Non-inverting input	Positive input node for threshold comparison; rail-to-rail capable.
4 - IN⁻	Inverting input	Negative input node; accepts signals down to −0.2 V for ground-referenced sensing.
5 - V₊	Positive supply	Primary power input (2.7–5.5 V); also serves as pull-up reference when used with open-drain output.

Key Features

Feature	Design Value
Rail-to-rail input stage	Supports input voltages from −0.2 V to V_CC + 0.1 V - eliminates need for signal conditioning in supply/ground monitoring.
Ultra-low quiescent current	65 µA at 5 V - reduces system power budget by >90% vs. standard comparators, extending battery life.
75-ns propagation delay	Guaranteed at 100 mV overdrive and 15 pF load - enables reliable timing in high-speed sampling and oscillator circuits.
Open-drain output architecture	Allows connection to higher-voltage buses (e.g., 12 V) using external pull-up - simplifies mixed-voltage interface design.
High CMRR and PSRR	67 dB CMRR and 85 dB PSRR - maintains accuracy in noisy environments and under varying supply conditions.

Applications

Portable Power Monitoring	Zero-Crossing Detection
Use Scenario: Real-time battery voltage tracking and low-battery alert generation in Bluetooth earbuds and fitness trackers. IC Role / Device Role / Timing Role: Comparator detecting when cell voltage drops below 3.0 V threshold with sub-millisecond response. Use Value: 65 µA supply current extends device runtime by weeks; rail-to-rail input captures full discharge curve from 4.2 V to 2.8 V.	Use Scenario: AC line synchronization in smart home dimmers and isolated power supplies. IC Role / Device Role / Timing Role: Precision zero-crossing detector converting 50/60 Hz sine wave to clean digital edge. Use Value: ±1 mV input offset minimizes timing jitter; open-drain output interfaces directly to microcontroller GPIO with 3.3 V logic.
Window Comparator	High-Speed Oscillator Core
Use Scenario: Overvoltage/undervoltage protection in USB-C PD adapters and portable chargers. IC Role / Device Role / Timing Role: Dual-threshold comparator monitoring 5 V rail between 4.75 V and 5.25 V windows. Use Value: 75 ns delay ensures fast fault response (<100 ns total latency); −0.2 V to 5.2 V input range accommodates noise margins.	Use Scenario: Generating precise clock signals for sensor sampling in IoT nodes and environmental monitors. IC Role / Device Role / Timing Role: Astable multivibrator core using RC feedback and internal hysteresis. Use Value: Open-drain output enables symmetrical waveform shaping with external pull-up; low current enables always-on operation.

Portable Power Monitoring

Zero-Crossing Detection

Use Scenario: Real-time battery voltage tracking and low-battery alert generation in Bluetooth earbuds and fitness trackers.

IC Role / Device Role / Timing Role: Comparator detecting when cell voltage drops below 3.0 V threshold with sub-millisecond response.

Use Value: 65 µA supply current extends device runtime by weeks; rail-to-rail input captures full discharge curve from 4.2 V to 2.8 V.

Use Scenario: AC line synchronization in smart home dimmers and isolated power supplies.

IC Role / Device Role / Timing Role: Precision zero-crossing detector converting 50/60 Hz sine wave to clean digital edge.

Use Value: ±1 mV input offset minimizes timing jitter; open-drain output interfaces directly to microcontroller GPIO with 3.3 V logic.

Window Comparator

High-Speed Oscillator Core

Use Scenario: Overvoltage/undervoltage protection in USB-C PD adapters and portable chargers.

IC Role / Device Role / Timing Role: Dual-threshold comparator monitoring 5 V rail between 4.75 V and 5.25 V windows.

Use Value: 75 ns delay ensures fast fault response (<100 ns total latency); −0.2 V to 5.2 V input range accommodates noise margins.

Use Scenario: Generating precise clock signals for sensor sampling in IoT nodes and environmental monitors.

IC Role / Device Role / Timing Role: Astable multivibrator core using RC feedback and internal hysteresis.

Use Value: Open-drain output enables symmetrical waveform shaping with external pull-up; low current enables always-on operation.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
LMV7235M5/NOPB	Same die, identical electrical specs and pinout; differs only in tape-and-reel packaging (M5X = 3000-unit reel, M5/NOPB = 250-unit reel).	No functional difference; suitable for same PCB layout and firmware.	Select LMV7235M5X for high-volume production; LMV7235M5/NOPB for prototyping or low-MOQ builds.
TLV3691IDBVR	Lower supply current (320 nA), slower propagation (5 µs), no rail-to-rail input (V_CM = 0.2 V to V_CC − 0.2 V); SC70-5 package.	Better for ultra-low-power wake-up detection; unsuitable for ground-sensing or high-speed timing.	Choose TLV3691IDBVR only when nanowatt operation outweighs speed and input range requirements.

Compared with LMV7235M5X, LMV7235M5/NOPB offers identical performance in smaller reels for flexibility, while TLV3691IDBVR trades 75-ns speed and rail-to-rail input for extreme low-power operation - making LMV7235M5X optimal for battery-powered systems needing both precision and responsiveness.

Availability

LMV7235M5X is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor nodes, and consumer wearables requiring stable component supply, long-term lifecycle support, and guaranteed authentic TI sourcing.

Supply support for LMV7235M5X 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 and embedded processing technologies, with decades of expertise in precision signal chain components.

The LMV7235M5X belongs to TI's LMV72xx ultra-low-power comparator family, engineered specifically for energy-constrained, high-accuracy sensing and timing applications in portable and battery-operated systems.

FAQ

What is the maximum operating temperature for the LMV7235M5X?

The LMV7235M5X is rated for operation from −40°C to +85°C ambient temperature per its Recommended Operating Conditions. At 125°C junction temperature, it remains functional but propagation delay increases to 140 ns - design margin must account for thermal derating in enclosed enclosures or high-power-density layouts. The LMV7235M5X datasheet specifies absolute maximum junction temperature as 150°C.

Does the LMV7235M5X require an external pull-up resistor on its output?

Yes, the LMV7235M5X features an open-drain output and requires an external pull-up resistor to function correctly. A typical value is 10 kΩ to V_CC, but the resistor can connect to any voltage between V₋ and V₊ to enable level shifting - for example, pulling up to 3.3 V while powered from 5 V. Without this resistor, the LMV7235M5X output cannot drive high.

Can the LMV7235M5X sense signals below ground?

Yes, the LMV7235M5X supports an input common-mode voltage range extending 200 mV below ground (−0.2 V) at 5 V supply, enabling true ground-referenced or negative-swing signal detection without level-shifting circuitry. This capability is confirmed in the Electrical Characteristics table (V_CM = V₋ − 0.1 V min) and is intrinsic to its complementary PNP/NPN input stage.

How does the LMV7235M5X compare to the LMV7239 in terms of output structure?

The LMV7235M5X uses an open-drain output, whereas the LMV7239 uses a push-pull output. This means the LMV7235M5X requires an external pull-up for high-level assertion and supports wired-OR logic, while the LMV7239 drives both high and low actively and needs no external resistor. Both share identical input characteristics, propagation delay, and supply current - the output architecture is the primary functional distinction.

Is the LMV7235M5X RoHS compliant and lead-free?

Yes, the LMV7235M5X is RoHS compliant and lead-free, meeting JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1) requirements. Its SOT-23 (DBV) package uses matte tin lead finish, and TI confirms full compliance with EU RoHS Directive 2011/65/EU and China RoHS. The part number suffix "M5X" denotes green, lead-free, tape-and-reel packaging.

LMV7235M5X Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

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

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Type:: General Purpose

Number of Elements:: 1

Output Type:: Open-Drain, Rail-to-Rail

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

LMV7235M5X FAQ

1.How can I place an order for LMV7235M5X through Aetrix?

Please submit a Request for Quotation (RFQ) for LMV7235M5X 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 LMV7235M5X reliable?

The price and inventory of LMV7235M5X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV7235M5X is usually 5 days.

3.What payment methods are accepted for LMV7235M5X?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV7235M5X transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LMV7235M5X?

LMV7235M5X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMV7235M5X 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 LMV7235M5X?

For technical support, including LMV7235M5X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV7235M5X requirements.

6.How does Aetrix verify that LMV7235M5X is sourced from the original manufacturer or authorized distributors?

All LMV7235M5X 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 LMV7235M5X meets industry standards.

7.What is the process for return or replacement of LMV7235M5X?

All LMV7235M5X units undergo pre-shipment inspection (PSI). If there is an issue with LMV7235M5X, 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 LMV7235M5X part is unused and in its original packaging.

Return procedure for LMV7235M5X:

1.Submit a request within 90 days.

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

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