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Texas Instruments LMV324M
- Part No.:
- LMV324M
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV324M.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,801
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Product details
Overview
LMV324M 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, −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 load) - enabling precision signal conditioning in battery-powered portable instrumentation.
For engineers reviewing the LMV324M datasheet, LMV324M pinout, LMV324M application, or LMV324M equivalent, this page provides verified technical context, package-validated pin functions, real-world application mappings, and two confirmed alternative op-amps with documented functional and parametric differences for low-voltage, space-constrained designs.
Technical Context
The LMV324M 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-only alternatives. Its input stage supports common-mode voltages down to −0.2 V (below ground) and up to V+−0.8 V, while the output stage achieves <10 mV headroom to V+ and <65 mV to V− under 10 kΩ load.
It operates across −40°C to +125°C with guaranteed 2.7-V and 5-V performance, no crossover distortion, and stable unity-gain operation into 200 pF capacitive loads. The device draws only 410 µA total quiescent current (all four amplifiers active) at 5 V, making it suitable for always-on sensor front-ends and portable analog signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports full operation across Li-ion battery discharge curve (4.2 V → 2.7 V) without rail translation. |
| Gain-Bandwidth Product | 1 MHz - enables stable closed-loop gain ≥10 up to ~100 kHz for anti-aliasing or active filter stages. |
| Slew Rate | 1 V/µs - sufficient for 100-kHz sine wave output at 16-Vpp without distortion in unity-gain buffer configurations. |
| Input Offset Voltage | 1.7 mV (max) - ensures ≤17 mV error in 10× gain stages with 10 mV input signals, critical for DC-coupled sensor interfaces. |
| Rail-to-Rail Output Swing | V+−10 mV / V−+65 mV @ 10 kΩ - maximizes dynamic range in 3.3-V systems, preserving >99% of available voltage swing. |
| Input Common-Mode Range | −0.2 V to V+−0.8 V - allows direct sensing of signals referenced to ground in single-supply configurations. |
| Quiescent Current (Total) | 410 µA (typ) - extends battery life in multi-channel portable devices; ~100 µA per amplifier at 5 V. |
Pinout & Package
LMV324M is packaged in a 14-pin SOIC (D package), 8.65 mm × 3.91 mm body size, with standard JEDEC MS-012AC footprint and 1.27 mm pitch. Pinout is identical across LMV324-N, LMV324-N-Q1, and LMV324M variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN A− | Inverting input of amplifier A - connects to feedback network in inverting configurations. |
| 2 | IN A+ | Noninverting input of amplifier A - accepts sensor or reference signal in noninverting gain stages. |
| 3 | OUT A | Output of amplifier A - drives next-stage input, ADC reference, or low-impedance load (≤10 kΩ). |
| 4 | V− | Negative supply terminal - tied to GND in single-supply use; 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 systems. |
| 6 | IN B− | Inverting input of amplifier B - enables differential or transimpedance configurations per channel. |
| 7 | OUT B | Output of amplifier B - isolated from OUT A for dual-path signal processing without crosstalk. |
| 8 | OUT C | Output of amplifier C - supports three-channel applications such as RGB sensor conditioning or triple-phase monitoring. |
| 9 | IN C− | Inverting input of amplifier C - shares V− and V+ rails but maintains independent bias and gain control. |
| 10 | IN C+ | Noninverting input of amplifier C - accommodates separate input references or offset adjustments per channel. |
| 11 | V+ | Positive supply terminal - accepts 2.7–5.5 V; requires local 0.1 µF + 4.7 µF decoupling for stability. |
| 12 | IN D+ | Noninverting input of amplifier D - enables fourth independent analog path in compact PCB layouts. |
| 13 | IN D− | Inverting input of amplifier D - supports dedicated feedback loop for channel-specific gain calibration. |
| 14 | OUT D | Output of amplifier D - completes quad-channel capability for simultaneous signal acquisition or redundancy. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Eliminates dead-zone nonlinearities in unity-gain buffers and audio paths, ensuring clean zero-crossing response. |
| Rail-to-rail output swing | Delivers usable output range within 10 mV of V+ and 65 mV of V− at 10 kΩ, maximizing SNR in low-voltage systems. |
| Ground-sensing input | Accepts input signals down to −0.2 V, enabling direct interfacing with transducers referenced to system ground. |
| 200 pF capacitive load tolerance | Stable in unity-gain configuration without external compensation - simplifies layout for ADC driver or cable-drive applications. |
| −40°C to +125°C operation | Validated over full industrial temperature range, supporting automotive cabin modules and industrial PLC I/O. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level biopotential signals (ECG, pulse oximetry) from dry electrodes in handheld diagnostic devices. IC Role / Device Role / Timing Role: Quad-channel signal conditioner - each amplifier handles one sensor channel with programmable gain and filtering. Use Value: Rail-to-rail output preserves full 3.3-V ADC input range; 410 µA total supply current extends battery life beyond 72 hours per charge. |
Use Scenario: Conditioning 4–20 mA current loop outputs from pressure, temperature, and flow sensors in factory automation nodes. IC Role / Device Role / Timing Role: Precision I/V converter and level-shifter - converts loop current to ground-referenced voltage while rejecting common-mode noise. Use Value: Input common-mode range including ground enables direct connection to shunt resistors; −40°C to +125°C rating ensures reliability in uncontrolled environments. |
| Smart Home Environmental Sensing | Automotive Cabin Control |
|
Use Scenario: Signal conditioning for multi-gas (CO₂, VOC, humidity) sensor arrays in battery-powered air quality monitors. IC Role / Device Role / Timing Role: Low-noise preamplifier and offset correction stage - four channels support simultaneous analog readout without multiplexing delay. Use Value: 1 MHz GBWP supports fast transient response to gas concentration changes; 1.7 mV max VOS minimizes calibration drift over time. |
Use Scenario: Occupancy detection via IR PIR sensors and seat occupancy pressure sensing in automotive HVAC and safety systems. IC Role / Device Role / Timing Role: Dual-channel comparator interface and analog front-end - conditions sensor outputs before feeding microcontroller ADCs. Use Value: AEC-Q100 Grade 1 qualification (LMV324M-Q1 variant) ensures compliance with automotive reliability standards; no crossover distortion prevents false triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad rail-to-rail output op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLV2464IDR | Higher supply current (1.2 mA total), 6.4 MHz GBWP, ±1.5 V to ±3 V dual-supply only - not rated for 2.7-V single supply. | Preferred for high-speed, dual-supply systems requiring >100 kHz bandwidth; unsuitable for 3.3-V battery operation. | Select TLV2464IDR only when bandwidth >2 MHz is required and supply rails permit dual ±2.5 V operation. |
| LM324DR | Wider supply range (3 V to 32 V), 1.2 MHz GBWP, but no rail-to-rail output (min. 1.5 V headroom), higher 1.4 mA supply current. | Used in legacy industrial controls with 12–24 V rails; lacks ground-sensing input and low-voltage compatibility. | Choose LM324DR only for retrofitting existing 12-V+ designs where rail-to-rail output is unnecessary and cost is primary. |
Compared with TLV2464IDR and LM324DR, LMV324M uniquely balances ultra-low quiescent current (410 µA), true rail-to-rail output, ground-sensing input, and guaranteed 2.7-V operation - making it the optimal choice for new battery-powered, space-constrained, single-supply analog signal chains.
Availability
LMV324M is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, smart home environmental sensing, and automotive cabin control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV324M 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 op-amps and low-power signal conditioning solutions.
The LMV3xx-N family was designed specifically for cost-sensitive, space-constrained, low-voltage applications - replacing legacy LM324/LM358 in battery-powered instrumentation, portable electronics, and automotive subsystems where rail-to-rail output and ground-sensing inputs are essential.
FAQ
What is the maximum operating temperature for LMV324M?
The LMV324M is specified for continuous operation from −40°C to +125°C across its full supply range (2.7 V to 5.5 V). This industrial-grade thermal rating is validated per TI's characterization data and applies to both commercial and automotive-grade variants (LMV324M-Q1), making it suitable for under-hood automotive modules and factory-floor industrial controllers where ambient temperatures exceed 85°C.
Does LMV324M support true single-supply operation with input signals at ground?
Yes, LMV324M supports true single-supply operation with input common-mode voltage ranging from −0.2 V to V+−0.8 V. Its input stage includes ground - allowing direct connection of sensors or transducers referenced to system ground without level-shifting circuitry. However, input voltages must not fall below −0.3 V (absolute minimum) to avoid forward-biasing internal ESD protection diodes.
What is the output drive capability of LMV324M at 3.3 V supply?
At 3.3 V supply, LMV324M delivers rail-to-rail output swing of V+−10 mV and V−+65 mV into a 10 kΩ load, with sourcing current up to 40 mA and sinking current up to 160 mA (per amplifier, at 5 V; derated at lower voltages). For 3.3 V operation, typical sourcing/sinking capability remains sufficient for driving 10 kΩ ADC inputs, LED indicators, or small MOSFET gates without external buffers.
Is LMV324M pin-compatible with LM324?
No, LMV324M is not pin-compatible with LM324. While both are quad op-amps in 14-pin SOIC packages, LMV324M uses the standard LM324 pinout (IN A+, IN A−, OUT A, V−, IN B+, IN B−, OUT B, OUT C, IN C−, IN C+, V+, IN D+, IN D−, OUT D), but LM324 has different internal channel ordering and lacks rail-to-rail output. LMV324M replaces LM324 functionally and thermally, but PCB layout must follow TI's recommended SOIC-14 footprint and decoupling guidelines.
What packaging options are available for LMV324M?
LMV324M is supplied exclusively in the 14-pin SOIC (D package) with 8.65 mm × 3.91 mm body size and 1.27 mm lead pitch. Unlike the LMV324-N family which also offers TSSOP-14, the LMV324M variant is SOIC-only - ensuring mechanical compatibility with legacy LM324 footprints while maintaining TI's enhanced electrical performance and low-voltage operation.
LMV324M Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LMV324M FAQ
1.How can I place an order for LMV324M through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324M 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 reliable?
The price and inventory of LMV324M are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324M is usually 5 days.
3.What payment methods are accepted for LMV324M?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324M transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324M?
LMV324M orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324M 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?
For technical support, including LMV324M datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324M requirements.
6.How does Aetrix verify that LMV324M is sourced from the original manufacturer or authorized distributors?
All LMV324M 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 meets industry standards.
7.What is the process for return or replacement of LMV324M?
All LMV324M units undergo pre-shipment inspection (PSI). If there is an issue with LMV324M, 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 part is unused and in its original packaging.
Return procedure for LMV324M:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324M Tags
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LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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