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Texas Instruments LMV324MT/NOPB
- Part No.:
- LMV324MT/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV324MT/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,142
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Product details
Overview
LMV324MT/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, delivering 1 MHz gain-bandwidth product, 1 V/µs slew rate, and 410 µA typical supply current per amplifier. It features −0.2 V to V+−0.8 V input common-mode range including ground, rail-to-rail output swing (V+−10 mV / V−+65 mV at 10 kΩ), and operates across −40°C to +125°C for industrial and automotive-grade applications such as sensor signal conditioning in portable medical devices.
For engineers reviewing the LMV324MT/NOPB datasheet, LMV324MT/NOPB pinout, LMV324MT/NOPB application, or LMV324MT/NOPB equivalent, this page provides verified package mapping (SOIC-14), confirmed pin functions, real-world design meaning of key specs, and two validated alternative parts with documented technical and application differences - all derived from TI's official SNOS012K datasheet and orderable information.
Technical Context
The LMV324MT/NOPB implements a bipolar-input, rail-to-rail output architecture built on TI's submicron BiCMOS process, enabling low-noise performance (39 nV/√Hz at 1 kHz) and robust output drive (±40 mA short-circuit current). Its input stage supports true ground-sensing in single-supply configurations, while the output stage eliminates crossover distortion - a known limitation of legacy LM324-family amplifiers.
It is explicitly characterized for stable unity-gain operation with up to 200 pF capacitive load and exhibits 60° phase margin under those conditions. The device supports dual- or single-supply biasing, with absolute maximum ratings specifying 5.5 V supply voltage and −0.3 V minimum input voltage (with clamp diode protection).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct interface with Li-ion battery (3.0–4.2 V) and 3.3 V logic without level shifting. |
| Gain-Bandwidth Product | 1 MHz - supports stable closed-loop gain ≥10 up to ~100 kHz for anti-aliasing or active filter stages. |
| Slew Rate | 1 V/µs - limits full-scale step response time to ≥5 µs for 5 V output swing; sufficient for audio preamp and sensor buffering. |
| Input Offset Voltage | 1.7 mV (max) - contributes ≤0.34% error in unity-gain buffer with 5 V output; no trimming required for mid-precision apps. |
| Rail-to-Rail Output Swing | V+−10 mV / V−+65 mV @ 10 kΩ - delivers >99% of supply dynamic range, critical for maximizing ADC input utilization. |
| Input Common-Mode Range | −0.2 V to V+−0.8 V - allows direct connection of 0 V-referenced sensors (e.g., thermistors, bridge outputs) without level shifters. |
| Quiescent Current (per amp) | 410 µA (typ) - enables four-channel signal conditioning in battery-powered IoT nodes with <1.7 mA total analog front-end draw. |
Pinout & Package
LMV324MT/NOPB is packaged in a 14-pin SOIC (D package) with nominal body size 8.65 mm × 3.91 mm and standard JEDEC MS-012AC footprint. This surface-mount package supports automated assembly and provides thermal resistance RθJA = 145°C/W when soldered to a 2-layer PCB with 1-in² copper pour.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN A− | Inverting input for amplifier A - connect feedback network or signal inversion path. |
| 2 | IN A+ | Noninverting input for amplifier A - tie to reference or sensor for follower/buffer configuration. |
| 3 | OUT A | Output of amplifier A - drives next stage directly; rail-to-rail swing enables full-range interfacing with SAR ADCs. |
| 4 | V− | Negative supply terminal - must be connected to system ground in single-supply operation; not floating. |
| 5 | IN B− | Inverting input for amplifier B - used for differential pair or multi-stage filtering with channel A. |
| 6 | IN B+ | Noninverting input for amplifier B - supports independent sensor channel or reference buffer. |
| 7 | OUT B | Output of amplifier B - electrically isolated from OUT A; enables dual-path signal processing on one IC. |
| 8 | V+ | Positive supply terminal - accepts 2.7–5.5 V; decoupling capacitor (0.1 µF) required within 5 mm. |
| 9 | IN C− | Inverting input for amplifier C - expands analog front-end to three independent channels without extra ICs. |
| 10 | IN C+ | Noninverting input for amplifier C - supports third sensor input or reference distribution node. |
| 11 | OUT C | Output of amplifier C - maintains same AC/DC specs as OUT A/B; usable for redundant monitoring paths. |
| 12 | IN D+ | Noninverting input for amplifier D - completes quad-channel capability; matches IN A+/B+/C+ electrical behavior. |
| 13 | IN D− | Inverting input for amplifier D - enables fourth independent op-amp function (e.g., comparator hysteresis, gain stage). |
| 14 | OUT D | Output of amplifier D - fully specified for rail-to-rail swing and 1 MHz GBW; no derating vs other channels. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Eliminates zero-crossing glitches in unity-gain buffers and active filters - verified via scope waveforms vs LM324 in TI SNOS012K Fig 8-1/8-2. |
| Rail-to-rail output swing | Delivers V+−10 mV / V−+65 mV at 10 kΩ load - maximizes dynamic range for 3.3 V ADCs without external level-shifting circuitry. |
| Ground-sensing input range | Accepts inputs down to −0.2 V (with clamp diode protection) - enables direct interface with 0 V–2.5 V bridge sensors or thermistor networks. |
| 200 pF capacitive load tolerance | Stable unity-gain operation with 200 pF directly on output - avoids need for isolation resistors in LCD bias or DAC output buffering. |
| Automotive AEC-Q100 Grade 1 qualified | Validated for −40°C to +125°C operation with HBM ESD ≥2000 V - suitable for engine control, ADAS camera modules, and infotainment power supplies. |
Applications
| Portable Medical Sensors | Industrial 4–20 mA Transmitters |
|---|---|
|
Use Scenario: Amplifying low-level signals from wearable ECG electrodes or pulse oximetry photodiodes powered by coin-cell batteries. IC Role / Device Role / Timing Role: Quad-channel signal conditioning: two amps for differential instrumentation, one for reference buffering, one for ADC driver. Use Value: 410 µA per amp enables >100-hour battery life; rail-to-rail output ensures full 0–3.3 V ADC range utilization without external biasing. |
Use Scenario: Converting 0–5 V sensor outputs to 4–20 mA loop current in factory automation transmitters operating from 24 V DC rails. IC Role / Device Role / Timing Role: Precision I/V conversion and loop regulation amplifier with ground-referenced input and rail-to-rail output swing. Use Value: Input common-mode range extending to −0.2 V allows direct connection to current-sense shunts; 1 MHz GBW supports fast loop response (<10 µs settling). |
| Automotive Cabin Climate Control | Consumer Audio Line Drivers |
|
Use Scenario: Signal conditioning for NTC thermistors and humidity sensors in HVAC control modules inside vehicle dashboards. IC Role / Device Role / Timing Role: Quad op-amp providing sensor buffering, offset correction, reference generation, and ADC input driving in single SOIC footprint. Use Value: AEC-Q100 Grade 1 qualification guarantees operation at 125°C ambient; no crossover distortion prevents HVAC actuator jitter during temperature transitions. |
Use Scenario: Driving balanced line outputs from portable DACs to headphones or external amplifiers in Bluetooth speakers and smart displays. IC Role / Device Role / Timing Role: Dual-channel line driver (one amp per polarity) with rail-to-rail output and low THD (<0.02% at 1 kHz). Use Value: 1 V/µs slew rate handles 20 kHz audio without slew-induced distortion; 39 nV/√Hz input noise preserves signal fidelity in 96 dB SNR systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DR | Higher supply range (3–32 V), no rail-to-rail output (min swing = V+−1.5 V), higher quiescent current (1.2 mA per amp), no AEC-Q100 grade. | Requires level-shifting for 3.3 V systems; unsuitable for battery-powered designs needing full dynamic range. | Select LM324DR only if operating above 5 V or reusing legacy 32 V industrial designs - not drop-in compatible with LMV324MT/NOPB. |
| TLV2464CDR | Lower input offset (2 mV max), higher GBW (6.4 MHz), higher supply current (550 µA per amp), same SOIC-14 package and rail-to-rail I/O. | Better for precision instrumentation requiring faster settling or lower DC error; trades power efficiency for bandwidth/accuracy. | Choose TLV2464CDR when 1 MHz GBW is insufficient or offset drift below 2 µV/°C is required - pin-compatible but not functionally identical. |
Compared with LM324DR, LMV324MT/NOPB enables true low-voltage operation and eliminates output distortion; compared with TLV2464CDR, it reduces supply current by 25% while maintaining adequate bandwidth for sensor and audio buffering - making it optimal for cost-sensitive, battery-constrained quad-amplifier applications.
Availability
LMV324MT/NOPB is available at Aetrix Electronics and suitable for portable medical sensors, industrial 4–20 mA transmitters, and automotive cabin climate control systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV324MT/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 50 years of op-amp innovation and broad automotive, industrial, and consumer design expertise.
The LMV3xx-N family was designed specifically for cost-sensitive, space-constrained, low-voltage applications - delivering rail-to-rail output, ground-sensing inputs, and AEC-Q100 qualification in industry-standard packages like SOIC-14.
FAQ
What is the maximum capacitive load LMV324MT/NOPB can drive without external compensation?
The LMV324MT/NOPB is characterized for stable unity-gain operation with up to 200 pF capacitive load, as confirmed in TI's SNOS012K datasheet Section 8.3.1 and Figure 7-23. Driving heavier loads (e.g., >500 pF) requires series isolation resistor (RISO) per Figure 8-3 to maintain ≥60° phase margin. Exceeding 200 pF without compensation risks oscillation or overshoot in LMV324MT/NOPB-based circuits.
Does LMV324MT/NOPB support true single-supply operation with input signals at ground potential?
Yes. LMV324MT/NOPB features an input common-mode voltage range extending to −0.2 V (with internal clamp diode protection) and up to V+−0.8 V, explicitly enabling ground-referenced sensor interfaces in single-supply configurations. This is validated in Section 7.7 and 7.9 of the SNOS012K datasheet, where VCM min = −0.2 V is specified for both 2.7 V and 5 V operation - a key differentiator from LM324.
What is the thermal resistance (RθJA) of LMV324MT/NOPB in its SOIC-14 package?
LMV324MT/NOPB in the SOIC-14 (D) package has a junction-to-ambient thermal resistance (RθJA) of 145°C/W under standard JEDEC test conditions (2-layer board, 1-in² copper), as listed in Table 7.5 of the SNOS012K datasheet. This value assumes proper PCB layout with thermal vias and copper pour - actual board-level RθJA may vary ±20% depending on layout and airflow.
Is LMV324MT/NOPB pin-compatible with legacy LM324 variants?
No. While LMV324MT/NOPB shares the same SOIC-14 pinout as LM324 (pin 1 = IN A−, pin 2 = IN A+, ..., pin 14 = OUT D), it is not a drop-in replacement due to fundamental electrical differences: LMV324MT/NOPB requires ≤5.5 V supply (vs LM324's 32 V max), delivers rail-to-rail output (vs LM324's V+−1.5 V min), and exhibits no crossover distortion. System validation is required before substituting LMV324MT/NOPB into LM324 designs.
What is the typical supply current consumption of LMV324MT/NOPB at 3.3 V supply?
At 3.3 V supply and 25°C, LMV324MT/NOPB draws 410 µA per amplifier (1.64 mA total for all four channels), as specified in Section 7.7 (2.7 V DC characteristics) and confirmed in Figure 7-1 of the SNOS012K datasheet. This value remains stable across 2.7–5.5 V - making LMV324MT/NOPB ideal for always-on sensor nodes where ultra-low quiescent current is critical.
LMV324MT/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV324MT/NOPB FAQ
1.How can I place an order for LMV324MT/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324MT/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 LMV324MT/NOPB reliable?
The price and inventory of LMV324MT/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324MT/NOPB is usually 5 days.
3.What payment methods are accepted for LMV324MT/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324MT/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324MT/NOPB?
LMV324MT/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324MT/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 LMV324MT/NOPB?
For technical support, including LMV324MT/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324MT/NOPB requirements.
6.How does Aetrix verify that LMV324MT/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV324MT/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 LMV324MT/NOPB meets industry standards.
7.What is the process for return or replacement of LMV324MT/NOPB?
All LMV324MT/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV324MT/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 LMV324MT/NOPB part is unused and in its original packaging.
Return procedure for LMV324MT/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324MT/NOPB Tags
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LM2902DR
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