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Home > Products > Integrated Circuits (ICs) > Linear > Instrumentation, Op Amps, Buffer Amps

Texas Instruments LMV324Q3MA/NOPB

Name: LMV324Q3MA/NOPB
Brand: Texas Instruments
SKU: LMV324Q3MA/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMV324Q3MA/NOPB

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-SOIC (0.154", 3.90mm Width)

Datasheet:: LMV324Q3MA/NOPB.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SOIC

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Product details

Overview

LMV324Q3MA/NOPB from Texas Instruments is a quad, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5.5 V), single-supply operation in automotive-grade applications. It delivers 1 MHz gain-bandwidth product, 1 V/µs slew rate, 410 µA typical supply current per amplifier, −0.2 V to 4 V input common-mode range (including ground), and rail-to-rail output swing (V+ −10 mV / V− +65 mV at 10 kΩ) - enabling precision signal conditioning in battery-powered ADAS sensors and body control modules.

For engineers reviewing the LMV324Q3MA/NOPB datasheet, LMV324Q3MA/NOPB pinout, LMV324Q3MA/NOPB application, or LMV324Q3MA/NOPB equivalent, key selection criteria include AEC-Q100 Grade 3 qualification (−40°C to +85°C), SOIC-14 package compatibility, quad-channel integration for space-constrained ECUs, and verified crossover-distortion-free performance in unity-gain buffer configurations.

Technical Context

The LMV324Q3MA/NOPB implements a bipolar-input, rail-to-rail output architecture built on TI's submicron BiCMOS process, delivering improved noise performance and higher output drive versus CMOS alternatives. Its input stage supports common-mode voltage down to −0.2 V (enabling ground-referenced sensing), while the output stage achieves V+ −10 mV and V− +65 mV swing into 10 kΩ loads at 5 V supply.

It operates across 2.7 V–5.5 V with guaranteed specifications at both 2.7 V and 5 V, exhibits 60° phase margin with 200 pF capacitive load, and maintains 50 dB minimum CMRR over 0 V–4 V input common-mode range - making it suitable for DC-coupled sensor interfaces and active filter stages where stability and DC accuracy are critical.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 5.5 V - supports full operation across depleted Li-ion (3.0 V) and regulated 3.3 V/5 V rails without performance degradation.
Gain-Bandwidth Product	1 MHz - enables stable unity-gain buffers and first-order active filters up to ~100 kHz with predictable phase response.
Slew Rate	1 V/µs - sufficient for settling 1 V step signals within 1 µs, suitable for medium-speed analog front-ends in automotive sensors.
Input Offset Voltage	1.7 mV (min), 7 mV (typ) - ensures ≤7 mV DC error in precision gain stages without external trimming.
Rail-to-Rail Output Swing	V+ −10 mV / V− +65 mV @ 10 kΩ - maximizes dynamic range in 3.3 V systems, delivering >3.2 V peak-to-peak output.
Input Common-Mode Range	−0.2 V to 4.0 V @ 5 V supply - allows direct interface to ground-referenced transducers and resistive divider networks.
Quiescent Current (per amp)	410 µA (typ) - enables four independent amplifiers in <1.7 mA total system bias, critical for always-on vehicle modules.

Pinout & Package

LMV324Q3MA/NOPB is packaged in a 14-pin SOIC (D package) with nominal body size 8.65 mm × 3.91 mm, rated for surface-mount reflow assembly and automotive under-hood thermal environments.

Pin/Terminal	Circuit Role	Design Meaning
1	IN A−	Inverting input of amplifier A - connects to feedback network in inverting configurations or sensor reference in differential pairs.
2	IN A+	Noninverting input of amplifier A - accepts ground-referenced sensor outputs or buffered reference voltages.
3	OUT A	Output of amplifier A - drives downstream ADC inputs, LED drivers, or next-stage filters with rail-to-rail swing.
4	V−	Negative supply terminal - tied to system ground in single-supply operation; must be decoupled with 0.1 µF ceramic capacitor.
5	IN B+	Noninverting input of amplifier B - used for independent channel routing in multi-sensor monitoring systems.
6	IN B−	Inverting input of amplifier B - enables matched gain-setting resistor placement for consistent channel matching.
7	OUT B	Output of amplifier B - provides second analog channel without cross-talk due to internal quad isolation.
8	OUT C	Output of amplifier C - supports three-channel signal conditioning (e.g., temperature, pressure, voltage sense) in compact ECUs.
9	IN C−	Inverting input of amplifier C - referenced to same ground plane as V− for minimized offset drift in multi-amp layouts.
10	IN C+	Noninverting input of amplifier C - accepts high-impedance sources with ≤250 nA input bias current (max).
11	V+	Positive supply terminal - accepts 2.7–5.5 V input; requires local 0.1 µF + 1 µF decoupling for EMI suppression.
12	OUT D	Output of amplifier D - enables fourth independent analog path for redundancy or diagnostics in safety-critical functions.
13	IN D−	Inverting input of amplifier D - supports differential input configuration with IN D+ (pin 14) for noise rejection.
14	IN D+	Noninverting input of amplifier D - completes quad-channel set; matches pin 2/5/10 electrical characteristics.

Key Features

Feature	Design Value
No crossover distortion	Eliminates zero-crossing glitches in unity-gain buffers - essential for clean audio preamps and precision sensor signal chains.
AEC-Q100 Grade 3 qualification	Validated for −40°C to +85°C ambient operation with full parametric compliance - meets requirements for passenger compartment electronics.
Rail-to-rail output with ground-sensing input	Enables single-supply operation from 2.7 V with full-scale signal capture from 0 V to V+, reducing need for level-shifting circuitry.
1 MHz bandwidth at 410 µA per amplifier	Delivers optimal speed-to-power ratio for cost-sensitive automotive subsystems where battery life and response time are balanced.
Bipolar input stage	Provides lower input voltage noise (39 nV/√Hz @ 1 kHz) and higher output drive vs CMOS op-amps - improves SNR in low-level sensor amplification.

Applications

Automotive Body Control Module (BCM)	ADAS Camera Power Supply Monitor
Use Scenario: Monitoring 12 V battery-derived 5 V and 3.3 V rails for microcontroller and CAN transceiver power integrity. IC Role / Device Role / Timing Role: Quad op-amp configured as four independent voltage comparators with hysteresis, using internal reference and external resistive dividers. Use Value: Single LMV324Q3MA/NOPB replaces four discrete comparators, reducing PCB area by 65% and eliminating inter-channel timing skew in fault detection.	Use Scenario: Conditioning analog output from linear Hall-effect current sensor measuring camera module supply current. IC Role / Device Role / Timing Role: Noninverting amplifier (gain = 10) with rail-to-rail output driving 12-bit SAR ADC input in real-time diagnostic path. Use Value: 1 V/µs slew rate ensures <1 µs settling for 100 mA step changes; ground-sensing input enables direct connection to shunt resistor low-side node.
Passenger Seat Occupancy Sensor Interface	Electronic Power Steering (EPS) Torque Sensor Signal Conditioning
Use Scenario: Amplifying low-amplitude capacitance-change signals from seat pad electrodes in occupant detection systems. IC Role / Device Role / Timing Role: Transimpedance amplifier converting electrode current to voltage, followed by 2nd-order active low-pass filter (fc = 10 Hz). Use Value: 1 MHz GBWP supports stable 10 Hz filter design with >40 dB stopband attenuation; 410 µA quiescent current minimizes impact on always-on sensor sleep mode.	Use Scenario: Buffering and scaling Wheatstone bridge output from magnetostrictive torque sensor in EPS motor control loop. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end (using two LMV324Q3MA/NOPB amps per channel) with matched gain and offset compensation. Use Value: 1.7 mV max input offset ensures <0.5% torque measurement error at full scale; AEC-Q100 Grade 3 ensures reliability across vehicle lifetime.

Automotive Body Control Module (BCM)

ADAS Camera Power Supply Monitor

Use Scenario: Monitoring 12 V battery-derived 5 V and 3.3 V rails for microcontroller and CAN transceiver power integrity.

IC Role / Device Role / Timing Role: Quad op-amp configured as four independent voltage comparators with hysteresis, using internal reference and external resistive dividers.

Use Value: Single LMV324Q3MA/NOPB replaces four discrete comparators, reducing PCB area by 65% and eliminating inter-channel timing skew in fault detection.

Use Scenario: Conditioning analog output from linear Hall-effect current sensor measuring camera module supply current.

IC Role / Device Role / Timing Role: Noninverting amplifier (gain = 10) with rail-to-rail output driving 12-bit SAR ADC input in real-time diagnostic path.

Use Value: 1 V/µs slew rate ensures <1 µs settling for 100 mA step changes; ground-sensing input enables direct connection to shunt resistor low-side node.

Passenger Seat Occupancy Sensor Interface

Electronic Power Steering (EPS) Torque Sensor Signal Conditioning

Use Scenario: Amplifying low-amplitude capacitance-change signals from seat pad electrodes in occupant detection systems.

IC Role / Device Role / Timing Role: Transimpedance amplifier converting electrode current to voltage, followed by 2nd-order active low-pass filter (fc = 10 Hz).

Use Value: 1 MHz GBWP supports stable 10 Hz filter design with >40 dB stopband attenuation; 410 µA quiescent current minimizes impact on always-on sensor sleep mode.

Use Scenario: Buffering and scaling Wheatstone bridge output from magnetostrictive torque sensor in EPS motor control loop.

IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end (using two LMV324Q3MA/NOPB amps per channel) with matched gain and offset compensation.

Use Value: 1.7 mV max input offset ensures <0.5% torque measurement error at full scale; AEC-Q100 Grade 3 ensures reliability across vehicle lifetime.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
LMV324QDRQ1	Same AEC-Q100 Grade 1 spec (−40°C to +125°C), identical SOIC-14 package, but rated for higher junction temperature and extended automotive under-hood use.	Required for engine bay or transmission control units where ambient exceeds +85°C.	Select LMV324QDRQ1 when operating ambient exceeds +85°C; otherwise LMV324Q3MA/NOPB offers cost-optimized Grade 3 compliance.
TSV914IQDT	Higher 8 MHz GBWP and 4.5 V/µs slew rate, but only AEC-Q100 Grade 2 (−40°C to +105°C); consumes 820 µA per amplifier.	Suitable for higher-bandwidth sensor fusion in domain controllers, not for ultra-low-power always-on nodes.	Choose TSV914IQDT only when bandwidth >1 MHz is mandatory; LMV324Q3MA/NOPB remains preferred for power-constrained Grade 3 applications.

Compared with LMV324QDRQ1 and TSV914IQDT, LMV324Q3MA/NOPB uniquely balances AEC-Q100 Grade 3 qualification, 1 MHz bandwidth, and 410 µA quiescent current - making it the optimal choice for cost-sensitive, thermally moderate automotive interior electronics requiring long-term supply stability.

Availability

LMV324Q3MA/NOPB is available at Aetrix Electronics and suitable for automotive body control modules, ADAS camera power monitors, passenger occupancy sensors, electronic power steering interfaces, and infotainment system audio preamplifiers requiring stable component supply across production lifecycles.

Supply support for LMV324Q3MA/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 and embedded processing technologies, with decades of automotive IC design expertise and broad manufacturing scale.

LMV324Q3MA/NOPB belongs to TI's LMV3xx-N-Q1/Q3 automotive op-amp family, engineered specifically for cost-sensitive, low-voltage, rail-to-rail signal conditioning in passenger compartment and chassis electronics.

FAQ

What is the operating temperature range for LMV324Q3MA/NOPB?

The LMV324Q3MA/NOPB is qualified to AEC-Q100 Grade 3, specifying guaranteed operation from −40°C to +85°C ambient temperature. This range covers passenger cabin, trunk, and non-engine-bay locations in automotive applications. Full electrical parameters are ensured across this span, including input offset voltage, CMRR, and output swing.

Does LMV324Q3MA/NOPB support true single-supply operation with ground-referenced inputs?

Yes. LMV324Q3MA/NOPB features an input common-mode voltage range extending to −0.2 V (below ground) and up to V+ − 0.8 V, enabling direct interface to ground-referenced sensors and resistive bridges without level-shifting circuitry. The rail-to-rail output further supports full dynamic range utilization in 3.3 V or 5 V single-rail systems.

What package type is used for LMV324Q3MA/NOPB, and is it RoHS-compliant?

LMV324Q3MA/NOPB uses the industry-standard 14-pin SOIC (D package) with 8.65 mm × 3.91 mm body size and 1.27 mm lead pitch. It is manufactured with lead-free terminations and fully complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3) requirements.

How does LMV324Q3MA/NOPB eliminate crossover distortion compared to legacy LM324?

LMV324Q3MA/NOPB employs an enhanced bipolar output stage that eliminates the dead-zone behavior present in classic LM324 designs. This results in continuous conduction across zero-crossing points, verified in voltage-follower configurations at ±2.5 V supply - ensuring clean, glitch-free output waveforms critical for audio and precision sensor signal paths.

Can LMV324Q3MA/NOPB drive capacitive loads directly, and what is the maximum stable value?

LMV324Q3MA/NOPB is stable driving up to 200 pF capacitive load in unity-gain configuration, as confirmed by phase margin measurements ≥60°. For larger loads (e.g., LCD bias networks or long cables), external isolation resistors (e.g., 620 Ω) or feed-forward compensation (as shown in TI's Figure 8-5) are required to maintain stability without oscillation.

LMV324Q3MA/NOPB Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: LMV®

Package/Case:: 14-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Amplifier Type:: General Purpose

Number of Circuits:: 4

Output Type:: Rail-to-Rail

Slew Rate:: 1V/µs

Gain Bandwidth Product:: 1 MHz

-3db Bandwidth:: -

Current - Input Bias:: 15 nA

Voltage - Input Offset:: 1.7 mV

Current - Supply:: 410µA (x4 Channels)

Current - Output / Channel:: 160 mA

Voltage - Supply Span (Min):: 2.7 V

Voltage - Supply Span (Max):: 5.5 V

Operating Temperature:: -40°C ~ 125°C

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

LMV324Q3MA/NOPB FAQ

1.How can I place an order for LMV324Q3MA/NOPB through Aetrix?

Please submit a Request for Quotation (RFQ) for LMV324Q3MA/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 LMV324Q3MA/NOPB reliable?

The price and inventory of LMV324Q3MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324Q3MA/NOPB is usually 5 days.

3.What payment methods are accepted for LMV324Q3MA/NOPB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324Q3MA/NOPB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LMV324Q3MA/NOPB?

LMV324Q3MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMV324Q3MA/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 LMV324Q3MA/NOPB?

For technical support, including LMV324Q3MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324Q3MA/NOPB requirements.

6.How does Aetrix verify that LMV324Q3MA/NOPB is sourced from the original manufacturer or authorized distributors?

All LMV324Q3MA/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 LMV324Q3MA/NOPB meets industry standards.

7.What is the process for return or replacement of LMV324Q3MA/NOPB?

All LMV324Q3MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV324Q3MA/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 LMV324Q3MA/NOPB part is unused and in its original packaging.

Return procedure for LMV324Q3MA/NOPB:

1.Submit a request within 90 days.

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

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