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

Texas Instruments LMV324Q3MAX/NOPB

Name: LMV324Q3MAX/NOPB
Brand: Texas Instruments
SKU: LMV324Q3MAX/NOPB
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMV324Q3MAX/NOPB

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

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

Datasheet:: LMV324Q3MAX/NOPB.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14SOIC

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Product details

Overview

LMV324Q3MAX/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 and industrial systems. It delivers 1 MHz gain-bandwidth product, 1 V/µs slew rate, 410 µA typical supply current per amplifier, −0.2 V to 4.0 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 sensor interfaces and portable instrumentation.

For engineers reviewing the LMV324Q3MAX/NOPB datasheet, LMV324Q3MAX/NOPB pinout, LMV324Q3MAX/NOPB application, or LMV324Q3MAX/NOPB equivalent, key selection criteria include its AEC-Q100 Grade 3 qualification (−40°C to +85°C), SOIC-14 package compatibility, guaranteed 2.7-V/5-V performance, absence of crossover distortion, and suitability for active filters, low-voltage analog front-ends, and cost-sensitive automotive body electronics.

Technical Context

The LMV324Q3MAX/NOPB implements a bipolar-input, rail-to-rail output op-amp architecture with integrated ESD protection (±2000 V HBM) and stable unity-gain operation into 200 pF capacitive loads. Its input stage supports common-mode voltages down to −0.2 V (enabling ground-referenced sensing), while the output stage achieves full swing within 10 mV of V₊ and 65 mV of V₋ under 10-kΩ load.

Designed as a drop-in low-voltage upgrade to the LM324, it maintains pin compatibility with industry-standard quad op-amp footprints while delivering improved speed-to-power ratio: 1 MHz bandwidth and 1 V/µs slew rate at only 410 µA per channel - making it suitable for space-constrained, thermally sensitive applications where quiescent current and dynamic range 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 closed-loop gain up to 10× at 100 kHz for anti-aliasing and sensor amplification.
Slew Rate	1 V/µs - ensures faithful reproduction of 100-kHz sine waves with ≤1% distortion at 1-V_PP output.
Input Offset Voltage	1.7 mV (max) - limits DC error to <±2 mV in unity-gain buffer configurations with 0–3.3 V input range.
Supply Current (per amp)	410 µA (typ) - allows four independent channels to operate continuously on <1.7 mA total, extending battery life in portable ECUs.
Rail-to-Rail Output Swing	V₊ − 10 mV / V₋ + 65 mV @ 10 kΩ - maximizes usable dynamic range in 3.3-V systems (3.29 V peak-to-peak).
Input Common-Mode Range	−0.2 V to V₊ − 0.8 V - permits direct interface with 0-V referenced sensors (e.g., thermistors, bridge transducers) without level-shifting.

Pinout & Package

LMV324Q3MAX/NOPB is housed in a 14-pin SOIC package (8.65 mm × 3.91 mm, 1.75 mm height) with standard quad op-amp pinout compatible with LM324 footprint. The package supports automated optical inspection (AOI) and reflow soldering per JEDEC J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
1	IN A−	Inverting input for Channel A - connects to feedback network in inverting amplifier configurations.
2	IN A+	Noninverting input for Channel A - accepts sensor signals or reference voltages with ground-inclusive common-mode range.
3	OUT A	Output for Channel A - drives loads up to 10 kΩ with rail-to-rail swing; requires local decoupling for stability.
4	V−	Negative supply terminal - tied to system ground in single-supply operation; must be low-impedance path.
5	IN B+	Noninverting input for Channel B - electrically isolated from Channel A; enables dual-sensor monitoring.
6	IN B−	Inverting input for Channel B - used for differential gain stages or active filter summing nodes.
7	OUT B	Output for Channel B - independent output stage; no crosstalk with Channel A above 60 dB (typ) at 1 kHz.
8	V+	Positive supply terminal - accepts 2.7–5.5 V; requires 100-nF ceramic capacitor placed ≤5 mm from pin.
9	IN C−	Inverting input for Channel C - supports third signal path in multi-channel data acquisition systems.
10	IN C+	Noninverting input for Channel C - enables simultaneous processing of three independent analog inputs.
11	OUT C	Output for Channel C - identical electrical specs to OUT A/B; shares same thermal resistance (R_θJA = 145°C/W).
12	IN D+	Noninverting input for Channel D - completes quad functionality; supports 4-channel sensor fusion or redundancy.
13	IN D−	Inverting input for Channel D - configurable as summing junction for 4-input averaging circuits.
14	OUT D	Output for Channel D - fully specified for 10-kΩ load; output short-circuit current ≥5 mA (sourcing) / ≥10 mA (sinking).

Key Features

Feature	Design Value
No crossover distortion	Eliminates dead-zone nonlinearity in unity-gain buffers - critical for precision DC-coupled signal paths in automotive cabin sensors.
AEC-Q100 Grade 3 qualification	Validated for −40°C to +85°C operation with enhanced ESD robustness (±2000 V HBM) - meets automotive body electronics reliability requirements.
Rail-to-rail output with ground-sensing input	Enables single-supply operation from 0 V to V₊ without external biasing - reduces component count in 3.3-V microcontroller ADC front-ends.
1 MHz GBWP at 410 µA per channel	Delivers 10× higher bandwidth-per-mA than legacy LM324 - improves transient response in motor control current-sense amplifiers.
Stable into 200 pF capacitive load	Permits direct driving of long PCB traces or ADC input capacitance without external isolation resistors - simplifies layout in compact modules.

Applications

Automotive Cabin Sensors	Portable Medical Instrumentation
Use Scenario: Signal conditioning for analog outputs of temperature, humidity, and CO₂ sensors in vehicle HVAC control units. IC Role / Device Role / Timing Role: Quad-channel buffer and gain stage converting 0–3.3 V sensor outputs to microcontroller ADC inputs with minimal offset drift. Use Value: Rail-to-rail output swing preserves full 12-bit ADC resolution; −40°C to +85°C guaranteed operation ensures reliability across climate zones.	Use Scenario: Amplifying low-amplitude biopotential signals (ECG, pulse oximetry) in handheld diagnostic devices. IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with selectable gain and high CMRR (>63 dB) for noise rejection. Use Value: 410 µA per channel enables >100-hour battery life on coin-cell power; input common-mode range including ground supports single-ended electrode interfaces.
Industrial PLC Analog Inputs	Smart Home Energy Monitors
Use Scenario: Scaling and filtering 4–20 mA current loop signals in programmable logic controller I/O modules. IC Role / Device Role / Timing Role: Transimpedance amplifier and low-pass filter driver for precision current-to-voltage conversion. Use Value: 1 MHz bandwidth supports fast loop response (<1 µs settling); SOIC-14 package fits standard DIN-rail module footprints.	Use Scenario: Monitoring AC mains voltage/current waveforms via shunt resistors and potential transformers in residential energy meters. IC Role / Device Role / Timing Role: Anti-aliasing filter stage and level-shifter preceding sigma-delta ADC sampling at 1–10 kHz. Use Value: No crossover distortion prevents harmonic generation in RMS calculations; 2.7-V minimum supply accommodates brownout conditions during grid fluctuations.

Automotive Cabin Sensors

Portable Medical Instrumentation

Use Scenario: Signal conditioning for analog outputs of temperature, humidity, and CO₂ sensors in vehicle HVAC control units.

IC Role / Device Role / Timing Role: Quad-channel buffer and gain stage converting 0–3.3 V sensor outputs to microcontroller ADC inputs with minimal offset drift.

Use Value: Rail-to-rail output swing preserves full 12-bit ADC resolution; −40°C to +85°C guaranteed operation ensures reliability across climate zones.

Use Scenario: Amplifying low-amplitude biopotential signals (ECG, pulse oximetry) in handheld diagnostic devices.

IC Role / Device Role / Timing Role: First-stage instrumentation amplifier with selectable gain and high CMRR (>63 dB) for noise rejection.

Use Value: 410 µA per channel enables >100-hour battery life on coin-cell power; input common-mode range including ground supports single-ended electrode interfaces.

Industrial PLC Analog Inputs

Smart Home Energy Monitors

Use Scenario: Scaling and filtering 4–20 mA current loop signals in programmable logic controller I/O modules.

IC Role / Device Role / Timing Role: Transimpedance amplifier and low-pass filter driver for precision current-to-voltage conversion.

Use Value: 1 MHz bandwidth supports fast loop response (<1 µs settling); SOIC-14 package fits standard DIN-rail module footprints.

Use Scenario: Monitoring AC mains voltage/current waveforms via shunt resistors and potential transformers in residential energy meters.

IC Role / Device Role / Timing Role: Anti-aliasing filter stage and level-shifter preceding sigma-delta ADC sampling at 1–10 kHz.

Use Value: No crossover distortion prevents harmonic generation in RMS calculations; 2.7-V minimum supply accommodates brownout conditions during grid fluctuations.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
LMV324DR	Commercial-grade (non-automotive), same SOIC-14 package, identical electrical specs except AEC-Q100 qualification and extended temp screening.	Lacks Grade 3 qualification; unsuitable for automotive production but acceptable for industrial prototypes or consumer test equipment.	Select LMV324DR for cost-sensitive non-automotive designs requiring identical performance without automotive certification overhead.
TSV914IQDT	Higher GBWP (8 MHz), lower V_OS (1.5 mV max), but higher supply current (820 µA per channel) and no AEC-Q100 Grade 3 rating.	Better AC performance for audio or high-speed data acquisition, but incompatible with battery-powered automotive modules due to current draw.	Choose TSV914IQDT when bandwidth and offset precision outweigh quiescent current constraints - e.g., lab-grade sensor calibrators.

Compared with LMV324DR and TSV914IQDT, LMV324Q3MAX/NOPB uniquely balances automotive qualification, ultra-low power, and rail-to-rail operation - making it the optimal choice for production-tier automotive body electronics where reliability, thermal margin, and supply voltage headroom are jointly constrained.

Availability

LMV324Q3MAX/NOPB is available at Aetrix Electronics and suitable for automotive cabin control, portable medical instrumentation, and industrial PLC analog input modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for LMV324Q3MAX/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 over 90 years of innovation in precision analog ICs and automotive-grade components.

LMV324Q3MAX/NOPB belongs to TI's LMV3xx-N-Qx low-voltage op-amp family, engineered specifically for cost-sensitive, space-constrained automotive and industrial applications demanding rail-to-rail performance, AEC-Q100 compliance, and robust single-supply operation.

FAQ

What is the operating temperature range for LMV324Q3MAX/NOPB?

LMV324Q3MAX/NOPB is qualified per AEC-Q100 Grade 3, specifying guaranteed operation from −40°C to +85°C ambient temperature. Electrical parameters such as input offset voltage, gain-bandwidth product, and supply current are ensured across this full range per TI's datasheet Section 7.4. This makes LMV324Q3MAX/NOPB suitable for under-hood-adjacent cabin modules and non-engine-compartment automotive electronics.

Does LMV324Q3MAX/NOPB support true single-supply operation with ground-referenced inputs?

Yes. LMV324Q3MAX/NOPB features an input common-mode voltage range extending to −0.2 V (below ground) and up to V₊ − 0.8 V, enabling direct connection of 0-V referenced sensors like thermistors or bridge transducers without external level-shifting circuitry. This capability is explicitly confirmed in Section 7.7 and 7.9 of the SNOS012K datasheet.

What is the maximum capacitive load LMV324Q3MAX/NOPB can drive without external compensation?

LMV324Q3MAX/NOPB is characterized for stable unity-gain operation into 200 pF capacitive loads, as documented in Section 8.3.1 and Figure 7-23 of the datasheet. Driving heavier loads (e.g., >500 pF) requires series isolation resistance (R_ISO) per Figure 8-3 to maintain phase margin ≥60° and prevent oscillation in active filter or ADC driver applications.

Is LMV324Q3MAX/NOPB pin-compatible with standard LM324 footprints?

Yes. LMV324Q3MAX/NOPB uses the industry-standard 14-pin SOIC package (package code D) with identical pinout and spacing to LM324, LM2902, and other quad op-amps in that family. Mechanical dimensions (8.65 mm × 3.91 mm) and lead pitch (1.27 mm) match JEDEC MS-012, enabling drop-in replacement in existing layouts without PCB revision.

How does the rail-to-rail output of LMV324Q3MAX/NOPB improve dynamic range in 3.3-V systems?

In a 3.3-V supply configuration, LMV324Q3MAX/NOPB delivers output swing from 65 mV above ground to 3.29 V - yielding 3.225 V of usable peak-to-peak range. This exceeds the 2.7 V typical swing of non-rail-to-rail op-amps, preserving >97% of full-scale ADC resolution and reducing quantization error in precision measurement systems.

LMV324Q3MAX/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

LMV324Q3MAX/NOPB FAQ

1.How can I place an order for LMV324Q3MAX/NOPB through Aetrix?

Please submit a Request for Quotation (RFQ) for LMV324Q3MAX/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 LMV324Q3MAX/NOPB reliable?

The price and inventory of LMV324Q3MAX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324Q3MAX/NOPB is usually 5 days.

3.What payment methods are accepted for LMV324Q3MAX/NOPB?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324Q3MAX/NOPB transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LMV324Q3MAX/NOPB?

LMV324Q3MAX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMV324Q3MAX/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 LMV324Q3MAX/NOPB?

For technical support, including LMV324Q3MAX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324Q3MAX/NOPB requirements.

6.How does Aetrix verify that LMV324Q3MAX/NOPB is sourced from the original manufacturer or authorized distributors?

All LMV324Q3MAX/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 LMV324Q3MAX/NOPB meets industry standards.

7.What is the process for return or replacement of LMV324Q3MAX/NOPB?

All LMV324Q3MAX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV324Q3MAX/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 LMV324Q3MAX/NOPB part is unused and in its original packaging.

Return procedure for LMV324Q3MAX/NOPB:

1.Submit a request within 90 days.

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

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