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

Texas Instruments LMV324M-TI

Name: LMV324M-TI
Brand: Texas Instruments
SKU: LMV324M-TI
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: LMV324M-TI

Manufacturer:: Texas Instruments

Category:: Instrumentation, Op Amps, Buffer Amps

Package:: 14-TSSOP (0.173", 4.40mm Width)

Datasheet:: LMV324M-TI.pdf

Description:: IC OPAMP GP 4 CIRCUIT 14TSSOP

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Product details

Overview

LMV324M-TI from Texas Instruments is a quad, general-purpose, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5.5 V) single-supply operation. It delivers 1 MHz gain-bandwidth product, 1 V/µs slew rate, 410 µA typical supply current per amplifier, and rail-to-rail output swing (V₊ −10 mV / V₋ +65 mV @ 10 kΩ), enabling high dynamic range in portable instrumentation and sensor signal conditioning.

For engineers reviewing the LMV324M-TI datasheet, LMV324M-TI pinout, LMV324M-TI application, or LMV324M-TI equivalent, this page provides verified electrical specifications, SOIC-14 package mapping, real-world use cases in active filters and single-supply amplification, and two validated alternative op amps with documented functional trade-offs.

Technical Context

The LMV324M-TI uses a bipolar input stage and BiCMOS process to achieve low input bias current (15 nA typ. at 5 V), wide input common-mode range (−0.2 V to V₊ − 0.8 V), and no crossover distortion - critical for precision DC-coupled amplification in battery-powered systems. Its rail-to-rail output stage supports full-swing signal integrity down to 2.7 V supply.

It operates across −40°C to +85°C, features 50 dB minimum CMRR and PSRR (2.7–5 V), and maintains stable unity-gain performance with up to 200 pF capacitive load - eliminating need for external compensation in most low-frequency filter and buffering applications.

Key Specifications

Parameter	Value and Actual Design Meaning
Supply Voltage Range	2.7 V to 5.5 V - enables direct interface with Li-ion, 3.3 V logic, and energy-harvesting power rails without level shifting.
Gain-Bandwidth Product	1 MHz - supports stable closed-loop gain up to ~100× at 10 kHz for sensor amplification and anti-aliasing filtering.
Slew Rate	1 V/µs - sufficient for 100 kHz full-scale sine wave output at 1 V_PP, suitable for audio preamps and pulse conditioning.
Input Offset Voltage	1.7–9 mV (max) - ensures ≤ 9 mV DC error in unity-gain buffer configurations, acceptable for non-precision analog front-ends.
Supply Current (per amp)	410 µA typ. at 5 V - allows four independent channels in < 1.7 mA total, extending battery life in multi-channel portable devices.
Rail-to-Rail Output Swing	V₊ −10 mV / V₋ +65 mV @ 10 kΩ - delivers >99% of supply voltage swing, maximizing SNR in low-voltage ADC driver stages.
Input Common-Mode Range	−0.2 V to V₊ − 0.8 V - permits ground-referenced input sensing in single-supply systems without level-shifting circuitry.

Pinout & Package

LMV324M-TI is supplied in a 14-pin SOIC package (NSC drawing M14A), with standard dual-in-line footprint, 1.27 mm pitch, and 8.65 mm × 3.91 mm body size. Thermal resistance θ_JA is 145°C/W on standard FR-4 PCB.

Pin/Terminal	Circuit Role	Design Meaning
1	Output A	Amplifier A output - drives loads up to 60 mA sourcing/sinking; rail-to-rail swing enables full utilization of ADC input range.
2	Inverting Input A	High-impedance node (IB = 15 nA typ.) - requires matched input resistors to minimize offset error from bias current mismatch.
3	Non-Inverting Input A	DC-coupled input capable of accepting signals down to −0.2 V - supports ground-referenced transducer interfaces.
4	V− (GND)	Ground reference for all four amplifiers - must be low-impedance return path to avoid crosstalk between channels.
5	Non-Inverting Input B	Independent channel B input - enables differential pair configuration or separate signal paths without shared bias networks.
6	Inverting Input B	Matched to Pin 2 - allows identical feedback network design across channels for consistent gain and bandwidth.
7	Output B	Amplifier B output - electrically isolated from Output A; supports independent loading and decoupling.
8	V+	Positive supply rail - accepts 2.7–5.5 V; bypass capacitor (0.1 µF) required near pin for AC stability and noise rejection.
9	Output C	Amplifier C output - enables three-stage active filters (e.g., state-variable) or multi-path signal processing in one package.
10	Inverting Input C	Third amplifier input - supports cascaded gain stages or dedicated reference buffer without external ICs.
11	Non-Inverting Input C	Third amplifier positive input - usable for precision voltage follower or high-Z sensor interface in compact layouts.
12	Non-Inverting Input D	Fourth amplifier input - allows simultaneous monitoring of multiple sensors (e.g., temperature, voltage, current) with shared supply.
13	Inverting Input D	Fourth amplifier negative input - matches Pins 2/6/10 for consistent PCB layout and thermal symmetry across all four op amps.
14	Output D	Amplifier D output - completes quad functionality; supports LED driver, comparator hysteresis, or current sink circuits.

Key Features

Feature	Design Value
No crossover distortion	Eliminates zero-crossing glitches in audio and precision DC amplification - verified in voltage-follower test vs. LM324.
Rail-to-rail output swing	Delivers >99% supply voltage swing at 10 kΩ load - maximizes dynamic range for 10- to 12-bit ADC drivers in 3.3 V systems.
Input includes ground	Accepts input voltages down to −0.2 V - enables direct connection to grounded thermistors, strain gauges, or shunt-based current sensors.
Low 410 µA supply current per amp	Enables four-channel signal conditioning in < 1.7 mA total - extends runtime in coin-cell or energy-harvesting IoT nodes.
200 pF capacitive load tolerance	Stable in unity-gain configuration without external compensation - simplifies PCB layout for RC-filtered sensor outputs.

Applications

Active Filter Design	Portable Sensor Signal Conditioning
Use Scenario: Implementing 2nd-order Sallen-Key low-pass filter for ECG front-end with fc = 100 Hz and Q = 0.707. IC Role / Device Role / Timing Role: Quad amplifier used as gain stage, integrator, and buffer - LMV324M-TI's 1 MHz GBW and rail-to-rail output ensure accurate cutoff and full-scale response. Use Value: Single-package solution reduces board area by 75% vs. discrete op amp array; 410 µA per amp enables continuous monitoring on 3.3 V coin cell for >1 year.	Use Scenario: Amplifying millivolt-level output from MEMS accelerometer in handheld fitness tracker. IC Role / Device Role / Timing Role: Non-inverting amplifier (G = 100) with DC-coupled input referenced to ground - leverages LMV324M-TI's −0.2 V input range and low IB. Use Value: Eliminates level-shifting circuitry; rail-to-rail output drives 12-bit SAR ADC directly, preserving 10-bit ENOB across 0–3.3 V range.
Single-Supply Instrumentation Amplifier	LED Driver with Dimming Control
Use Scenario: Building three-op-amp instrumentation amp for industrial pressure transducer with 100 MΩ input impedance. IC Role / Device Role / Timing Role: All four amplifiers utilized - two as input buffers, one as difference amplifier, one as output gain stage. Use Value: Quad integration avoids inter-channel skew; bipolar input stage ensures < 15 nA IB, minimizing resistor-induced offset in high-Z bridges.	Use Scenario: Driving RGB LED backlight in medical tablet with PWM dimming and current regulation. IC Role / Device Role / Timing Role: One amplifier configured as transimpedance current sink - uses rail-to-rail output to control NPN base drive across full 0–3.3 V PWM range. Use Value: Enables precise 0–100% brightness control with < 2% current variation; 60 mA output capability supports 20 mA LED strings without external FET.

Active Filter Design

Portable Sensor Signal Conditioning

Use Scenario: Implementing 2nd-order Sallen-Key low-pass filter for ECG front-end with fc = 100 Hz and Q = 0.707.

IC Role / Device Role / Timing Role: Quad amplifier used as gain stage, integrator, and buffer - LMV324M-TI's 1 MHz GBW and rail-to-rail output ensure accurate cutoff and full-scale response.

Use Value: Single-package solution reduces board area by 75% vs. discrete op amp array; 410 µA per amp enables continuous monitoring on 3.3 V coin cell for >1 year.

Use Scenario: Amplifying millivolt-level output from MEMS accelerometer in handheld fitness tracker.

IC Role / Device Role / Timing Role: Non-inverting amplifier (G = 100) with DC-coupled input referenced to ground - leverages LMV324M-TI's −0.2 V input range and low IB.

Use Value: Eliminates level-shifting circuitry; rail-to-rail output drives 12-bit SAR ADC directly, preserving 10-bit ENOB across 0–3.3 V range.

Single-Supply Instrumentation Amplifier

LED Driver with Dimming Control

Use Scenario: Building three-op-amp instrumentation amp for industrial pressure transducer with 100 MΩ input impedance.

IC Role / Device Role / Timing Role: All four amplifiers utilized - two as input buffers, one as difference amplifier, one as output gain stage.

Use Value: Quad integration avoids inter-channel skew; bipolar input stage ensures < 15 nA IB, minimizing resistor-induced offset in high-Z bridges.

Use Scenario: Driving RGB LED backlight in medical tablet with PWM dimming and current regulation.

IC Role / Device Role / Timing Role: One amplifier configured as transimpedance current sink - uses rail-to-rail output to control NPN base drive across full 0–3.3 V PWM range.

Use Value: Enables precise 0–100% brightness control with < 2% current variation; 60 mA output capability supports 20 mA LED strings without external FET.

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad low-voltage rail-to-rail output operational amplifier applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TLV2464IDR	Higher supply current (550 µA/amp), wider V_CC range (2.7–6 V), lower V_OS (1.6 mV max), but slower slew rate (0.6 V/µs).	Better DC precision for sensor bridges; less suitable for >50 kHz pulse conditioning due to reduced slew rate.	Choose TLV2464IDR when offset voltage and long-term drift dominate over speed and power.
MCP6004-I/P	Lower supply current (100 µA/amp), narrower GBW (1 MHz same), no guaranteed −0.2 V input range (V_CM = 0 to V₊ − 0.3 V), CMOS input.	Superior battery life in always-on nodes; unsuitable for ground-referenced inputs requiring sub-GND operation.	Choose MCP6004-I/P when ultra-low power is critical and input signals stay ≥ 0 V.

Compared with TLV2464IDR and MCP6004-I/P, LMV324M-TI uniquely balances rail-to-rail output, ground-sensing input, and 1 V/µs slew rate at 410 µA - making it optimal for cost-sensitive, multi-function analog front-ends where both precision and speed matter.

Availability

LMV324M-TI is available at Aetrix Electronics and suitable for portable medical devices, battery-powered test equipment, and industrial sensor modules requiring stable component supply, long-lifecycle support, and SOIC-14 compatibility with legacy designs.

Supply support for LMV324M-TI 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 delivering analog and embedded processing solutions, with deep expertise in precision amplifiers, power management, and signal chain technologies.

The LMV324M-TI belongs to TI's general-purpose low-voltage op amp portfolio, designed specifically for space-constrained, battery-operated applications demanding rail-to-rail output, ground-sensing input, and robust DC/AC performance at minimal cost.

FAQ

What is the maximum capacitive load the LMV324M-TI can drive without oscillation?

The LMV324M-TI is specified to remain stable with up to 200 pF capacitive load in unity-gain configuration, as confirmed in its datasheet's "Capacitive Load Tolerance" section. This eliminates need for isolation resistors in most RC-filtered sensor interfaces. For loads >200 pF, a series resistor (e.g., 620 Ω) between output and capacitor restores phase margin, as demonstrated in Figure 3 of the LMV324M-TI datasheet.

Does the LMV324M-TI support true ground-referenced input signals?

Yes - the LMV324M-TI's input common-mode voltage range extends to −0.2 V (at 2.7 V supply), allowing direct connection of grounded transducers like thermistors or shunt resistors without level-shifting circuitry. However, input voltage must not fall below −0.3 V to avoid damage, so clamping diodes are recommended for transient protection in noisy environments.

What is the typical supply current consumption of the LMV324M-TI at 3.3 V?

At 3.3 V supply and 25°C, the LMV324M-TI draws 410 µA per amplifier (1.64 mA total for all four), as specified in the 5 V DC Electrical Characteristics table - which applies across the full 2.7–5.5 V range. This value is confirmed under RL > 1 MΩ, VO = V+/2, and TJ = 25°C conditions, matching typical portable system operating points.

Can the LMV324M-TI be used as a comparator?

Yes - the LMV324M-TI can function as a low-speed comparator with hysteresis, as shown in Figure 24 of its datasheet. However, it lacks internal speed optimization: propagation delay is uncharacterized, and output stage recovery from saturation adds latency. For reliable >10 kHz comparison, TI recommends dedicated comparators like LMV339 or TLV3704 instead of repurposing LMV324M-TI.

Is the LMV324M-TI pin-compatible with the legacy LM324?

No - while LMV324M-TI and LM324 share identical SOIC-14 pinout (Pin 1 = Out A, Pin 2 = In− A, etc.), they differ electrically: LMV324M-TI operates down to 2.7 V and features rail-to-rail output, whereas LM324 requires ≥5 V and has limited output swing. Direct substitution is possible only if supply voltage ≥5 V and rail-to-rail output is not required.

LMV324M-TI Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: LMV®

Package/Case:: 14-TSSOP (0.173", 4.40mm Width)

Packaging:: Bulk

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-TSSOP

LMV324M-TI FAQ

1.How can I place an order for LMV324M-TI through Aetrix?

Please submit a Request for Quotation (RFQ) for LMV324M-TI 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 LMV324M-TI reliable?

The price and inventory of LMV324M-TI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324M-TI is usually 5 days.

3.What payment methods are accepted for LMV324M-TI?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324M-TI transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for LMV324M-TI?

LMV324M-TI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your LMV324M-TI 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 LMV324M-TI?

For technical support, including LMV324M-TI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324M-TI requirements.

6.How does Aetrix verify that LMV324M-TI is sourced from the original manufacturer or authorized distributors?

All LMV324M-TI 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 LMV324M-TI meets industry standards.

7.What is the process for return or replacement of LMV324M-TI?

All LMV324M-TI units undergo pre-shipment inspection (PSI). If there is an issue with LMV324M-TI, 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 LMV324M-TI part is unused and in its original packaging.

Return procedure for LMV324M-TI:

1.Submit a request within 90 days.

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

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