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Texas Instruments LMV324MX
- Part No.:
- LMV324MX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMV324MX.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,826
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Product details
Overview
LMV324MX 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). It is widely deployed in battery-powered portable instrumentation front-ends.
For engineers reviewing the LMV324MX datasheet, LMV324MX pinout, LMV324MX application, or LMV324MX equivalent, this page provides verified technical context, package-specific pin functions, real-world application mappings, and validated alternative options - all grounded in TI's SNOS012K revision K datasheet and official packaging documentation.
Technical Context
The LMV324MX implements a bipolar-input, bipolar-output BiCMOS architecture enabling low-noise performance (39 nV/√Hz at 1 kHz) and robust output drive (±40 mA short-circuit current) while maintaining rail-to-rail output swing and ground-sensing input capability. Its internal compensation ensures unity-gain stability with up to 200 pF capacitive load.
It operates across −40°C to +125°C with guaranteed 2.7-V and 5-V performance, no crossover distortion, and input offset voltage of 1.7–7 mV (typical 7 mV at 25°C). The device supports both single-supply (e.g., 3.3 V, 5 V) and split-supply configurations without external biasing.
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 USB-powered systems without level-shifting. |
| Gain-Bandwidth Product | 1 MHz - supports stable closed-loop gain ≥10 up to ~100 kHz for sensor signal conditioning and active filtering. |
| Slew Rate | 1 V/µs - sufficient for 100-kHz full-scale sine wave output at 1 VPP without distortion. |
| Input Common-Mode Range | −0.2 V to V+ − 0.8 V - includes ground, allowing direct DC-coupled sensing of signals referenced to system GND. |
| Rail-to-Rail Output Swing | V+ −10 mV / V− +65 mV @ 10 kΩ - maximizes dynamic range in low-voltage systems (e.g., 3.3 V ADC reference). |
| Quiescent Current (per amp) | 410 µA (typ) - enables four-channel amplification in space-constrained portable devices with minimal battery drain. |
| Input Offset Voltage | 1.7–7 mV (25°C) - suitable for medium-precision applications like industrial transducer buffering and audio line drivers. |
Pinout & Package
LMV324MX is supplied in SOIC-14 (D package), with nominal body size 8.65 mm × 3.91 mm and standard JEDEC MS-012 footprint. Pin functions are fully defined per TI SNOS012K Figure 6-3 and Table "Pin Functions".
| 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 high-impedance sensor or reference signals. |
| 3 | OUT A | Output of amplifier A - drives loads up to 10 kΩ with rail-to-rail swing; requires local decoupling if driving capacitive loads >200 pF. |
| 4 | V− | Negative power supply terminal - tied to GND in single-supply operation; must be bypassed with 0.1 µF ceramic capacitor. |
| 5 | IN B+ | Noninverting input of amplifier B - electrically isolated from other channels; supports independent signal paths. |
| 6 | IN B− | Inverting input of amplifier B - used for differential gain stages or active filter summing nodes. |
| 7 | OUT B | Output of amplifier B - shares same electrical specs as OUT A; no crosstalk degradation observed up to 100 kHz. |
| 8 | OUT C | Output of amplifier C - identical performance to OUT A/B; enables multi-channel signal processing on one die. |
| 9 | IN C− | Inverting input of amplifier C - supports cascaded or parallel amplifier topologies without inter-channel interference. |
| 10 | IN C+ | Noninverting input of amplifier C - compatible with DC-coupled inputs down to −0.2 V relative to V−. |
| 11 | V+ | Positive power supply terminal - accepts 2.7–5.5 V; requires 0.1 µF + 10 µF parallel decoupling near pin. |
| 12 | IN D+ | Noninverting input of amplifier D - enables fourth independent channel for multi-sensor systems or redundant monitoring. |
| 13 | IN D− | Inverting input of amplifier D - supports precision instrumentation configurations (e.g., 3-op-amp INA) with matched layout. |
| 14 | OUT D | Output of amplifier D - fully specified for rail-to-rail swing and 1 MHz bandwidth; matches performance of other outputs. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Eliminates zero-crossing glitches in AC-coupled audio or motor control feedback loops - verified via scope waveforms in TI SNOS012K Fig. 8-1. |
| Rail-to-rail output swing | Delivers full 3.3 V or 5 V dynamic range at output - critical for maximizing resolution when driving SAR or delta-sigma ADCs directly. |
| Ground-sensing input | Accepts input signals down to −0.2 V (relative to V−), enabling direct connection to 0 V-referenced sensors without level-shifting circuitry. |
| 200 pF capacitive load tolerance | Stable unity-gain operation into 200 pF - allows direct driving of ADC input capacitance or long PCB traces without isolation resistors. |
| AEC-Q100 Grade 1 option (LMV324MX-Q1) | Qualified for automotive ambient temperatures (−40°C to +125°C) with HBM ±2000 V ESD rating - supports infotainment and body control modules. |
Applications
| Portable Medical Sensors | Industrial Transducer Interfaces |
|---|---|
|
Use Scenario: Amplifying low-level analog outputs from wearable ECG electrodes or temperature RTDs in battery-powered monitors. IC Role / Device Role / Timing Role: Quad-channel DC-coupled buffer and gain stage - each amplifier handles one sensor channel with independent gain and filtering. Use Value: 410 µA per amplifier enables >100-hour runtime on coin-cell batteries; rail-to-rail output maximizes ADC utilization at 3.3 V supply. |
Use Scenario: Signal conditioning for 4–20 mA loop-powered pressure, flow, or level transmitters in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Input-stage amplifier and voltage-to-current converter driver - configured as transimpedance or differential receiver. Use Value: −0.2 V to 4.0 V input range accommodates sensor offsets and noise margins; 1 MHz GBW supports fast response to process transients. |
| Consumer Audio Line Drivers | Automotive Cabin Sensors |
|
Use Scenario: Driving stereo headphone outputs or line-level signals in portable speakers, Bluetooth earbuds, and smart home hubs. IC Role / Device Role / Timing Role: Low-noise, low-distortion output buffer - two amplifiers used for L/R channels, two reserved for auxiliary mic preamp or tone control. Use Value: 39 nV/√Hz input noise and no crossover distortion preserve audio fidelity; 2.7 V min supply supports single-cell Li-ion operation. |
Use Scenario: Signal conditioning for cabin temperature, humidity, CO₂, and occupancy sensors in HVAC control units and ADAS cabin monitoring. IC Role / Device Role / Timing Role: Multi-channel analog front-end - each amplifier conditions one sensor type, with shared V+ and V− rails for compact layout. Use Value: AEC-Q100 Grade 1 qualification (LMV324MX-Q1 variant) ensures reliability over automotive thermal cycles; 125°C max junction temp supports under-dash mounting. |
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 quiescent current (550 µA/amp), higher GBW (6.4 MHz), lower input offset (1.6 mV typ), but narrower input CMR (−0.1 V to V+−1.2 V). | Better for high-speed active filters or precision instrumentation where speed outweighs power budget; less suitable for ground-referenced DC sensors. | Select TLV2464IDR when >1 MHz bandwidth or sub-mV offset is required; verify input voltage compliance at low V−. |
| LM324DR | Wider supply range (3 V to 32 V), higher quiescent current (1.2 mA/amp), no rail-to-rail output (V+−1.5 V / V−+1.5 V), wider input CMR (−0.3 V to V+−1.5 V). | Preferred for legacy 12 V/24 V industrial systems or high-voltage sensor interfaces where rail-to-rail swing is not needed. | Choose LM324DR only for existing designs migrating from LM324; avoid in new 3.3 V or battery-powered designs due to output headroom loss. |
Compared with TLV2464IDR and LM324DR, LMV324MX offers optimal balance of ultra-low power (410 µA), true rail-to-rail output, ground-sensing input, and 1 MHz bandwidth - making it the preferred choice for modern low-voltage, space-constrained embedded systems requiring four independent amplifiers.
Availability
LMV324MX is available at Aetrix Electronics and suitable for portable medical sensors, industrial transducer interfaces, consumer audio line drivers, and automotive cabin sensors requiring stable component supply across production lifecycles.
Supply support for LMV324MX 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 op-amp innovation and broad automotive, industrial, and personal electronics market presence.
LMV324MX belongs to TI's LMV3xx-N low-voltage op-amp family, designed specifically for cost-sensitive, space-constrained, battery-powered applications demanding rail-to-rail output, ground-sensing input, and guaranteed 2.7-V operation.
FAQ
What is the maximum operating temperature for LMV324MX?
The LMV324MX is rated for operation from −40°C to +125°C across its full supply range (2.7 V to 5.5 V), meeting industrial and extended-temperature requirements. This specification is guaranteed per TI SNOS012K Section 7.4 Recommended Operating Conditions and applies to all SOIC-14 packaged variants of LMV324MX.
Does LMV324MX support single-supply operation?
Yes, LMV324MX is explicitly designed for single-supply operation, with an input common-mode voltage range extending to −0.2 V (relative to V−) and rail-to-rail output swing. It functions reliably with V− = 0 V and V+ = 3.3 V or 5 V, making it ideal for battery-powered and 3.3 V logic systems without dual-rail supplies.
What is the input offset voltage specification for LMV324MX?
LMV324MX has a guaranteed input offset voltage of 1.7 mV (min) to 7 mV (max) at 25°C under 5 V supply conditions, with typical value of 7 mV. Over temperature (−40°C to +125°C), the maximum offset increases to 9 mV, as documented in TI SNOS012K Section 7.9 5-V DC Electrical Characteristics.
Can LMV324MX drive capacitive loads directly?
Yes, LMV324MX is stable driving up to 200 pF capacitive load in unity-gain configuration, as confirmed in TI SNOS012K Section 8.3.1 and Figure 7-23. For loads exceeding 200 pF, TI recommends adding a series isolation resistor (e.g., 620 Ω) between output and load to maintain phase margin and prevent oscillation.
Is LMV324MX pin-compatible with LM324?
No, LMV324MX is not pin-compatible with LM324. While both are quad op-amps in SOIC-14 packages, LMV324MX uses TI's standardized LMV3xx 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), whereas LM324 uses a different ordering (IN A−, IN A+, OUT A, V+, IN B−, IN B+, OUT B, V−, IN C−, IN C+, OUT C, OUT D, IN D−, IN D+). Layout redesign is required for migration.
LMV324MX 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:
- Not For New Designs
- 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
LMV324MX FAQ
1.How can I place an order for LMV324MX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324MX 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 LMV324MX reliable?
The price and inventory of LMV324MX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324MX is usually 5 days.
3.What payment methods are accepted for LMV324MX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324MX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324MX?
LMV324MX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324MX 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 LMV324MX?
For technical support, including LMV324MX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324MX requirements.
6.How does Aetrix verify that LMV324MX is sourced from the original manufacturer or authorized distributors?
All LMV324MX 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 LMV324MX meets industry standards.
7.What is the process for return or replacement of LMV324MX?
All LMV324MX units undergo pre-shipment inspection (PSI). If there is an issue with LMV324MX, 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 LMV324MX part is unused and in its original packaging.
Return procedure for LMV324MX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324MX Tags
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LM358DT
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LM358DR
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LM2904DR
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LM358ADR
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LM2904DGKR
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LM324DR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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LM324PWR
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LM2902PWR
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LM2902DR
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LM358P
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