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Texas Instruments LMV324MTX/NOPB
- Part No.:
- LMV324MTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMV324MTX/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,382
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Product details
Overview
LMV324MTX/NOPB 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, delivering 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 at 10 kΩ), widely deployed in battery-powered sensor signal conditioning and portable analog front-ends.
For engineers reviewing the LMV324MTX/NOPB datasheet, LMV324MTX/NOPB pinout, LMV324MTX/NOPB application, or LMV324MTX/NOPB equivalent, key selection considerations include guaranteed 2.7-V/5-V performance, −40°C to +125°C industrial temperature range, no crossover distortion, input common-mode range extending to ground, and SOIC-14/TSSOP-14 package compatibility for space-constrained PCB layouts.
Technical Context
The LMV324MTX/NOPB implements a bipolar-input, rail-to-rail output architecture built on Texas Instruments' submicron BiCMOS process, enabling high output drive capability (±40 mA short-circuit current) while maintaining low input bias current (15–250 nA) and low input offset voltage (1.7–7 mV). Its unity-gain-stable design supports direct 200 pF capacitive load driving without oscillation.
It operates across dual- or single-supply configurations with VCM = −0.2 V to V+ − 0.8 V and exhibits 50–65 dB CMRR and PSRR over 2.7–5 V supplies. The device eliminates crossover distortion through internal output stage optimization, confirmed by comparative scope waveforms against legacy LM324.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables full functionality across depleted Li-ion (3.0 V) and regulated 3.3 V/5 V rails. |
| Gain-Bandwidth Product | 1 MHz - supports stable closed-loop gain up to ~100× at DC–10 kHz for sensor amplification and active filtering. |
| Slew Rate | 1 V/µs - ensures faithful reproduction of ≤159 kHz full-scale sine waves without slew-induced distortion. |
| Input Offset Voltage | 1.7 mV (min), 7 mV (typ) - limits DC error to <±7 mV in unity-gain buffer or low-gain instrumentation stages. |
| Rail-to-Rail Output Swing | V+ − 10 mV / V− + 65 mV @ 10 kΩ - delivers >99% of supply dynamic range for maximum ADC utilization. |
| Supply Current (Quad) | 410 µA (typ), 830 µA (max) - extends battery life in always-on monitoring nodes (e.g., 10-year coin-cell operation at µA avg). |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive, industrial PLC I/O, and outdoor IoT edge nodes. |
Pinout & Package
LMV324MTX/NOPB is packaged in a 14-pin SOIC (D package) with nominal body size 8.65 mm × 3.91 mm, surface-mount compatible, and rated for reflow soldering per JEDEC J-STD-020.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | IN A+ | Noninverting input for amplifier channel A - referenced to system ground in single-supply configurations. |
| 2 | IN A− | Inverting input for amplifier channel A - used for feedback or differential sensing with matched trace routing. |
| 3 | OUT A | Output of amplifier channel A - drives loads up to 10 kΩ directly; requires isolation resistor for >200 pF capacitive loads. |
| 4 | V− | Negative supply terminal - connected to GND in single-supply mode; must be decoupled with 0.1 µF ceramic capacitor. |
| 5 | IN B+ | Noninverting input for amplifier channel B - electrically isolated from other channels; supports independent signal paths. |
| 6 | IN B− | Inverting input for amplifier channel B - maintains same input impedance and bias current behavior as channel A. |
| 7 | OUT B | Output of amplifier channel B - shares same output drive strength and rail-to-rail swing as OUT A. |
| 8 | V+ | Positive supply terminal - accepts 2.7–5.5 V; requires local 0.1 µF + 1 µF bulk decoupling near pin. |
| 9 | IN C− | Inverting input for amplifier channel C - layout symmetry recommended to minimize crosstalk with adjacent pins. |
| 10 | IN C+ | Noninverting input for amplifier channel C - supports multi-channel sensor arrays (e.g., 3-axis accelerometer conditioning). |
| 11 | OUT C | Output of amplifier channel C - identical AC/DC specs to OUT A/B; usable for parallel gain stages or redundancy. |
| 12 | IN D+ | Noninverting input for amplifier channel D - enables fourth independent analog path without external ICs. |
| 13 | IN D− | Inverting input for amplifier channel D - matches input capacitance and ESD protection structure of other inputs. |
| 14 | OUT D | Output of amplifier channel D - completes quad functionality; all four outputs are fully specified and tested. |
Key Features
| Feature | Design Value |
|---|---|
| No crossover distortion | Eliminates zero-crossing glitches in audio buffers and precision comparators, verified vs. LM324 in voltage-follower test waveforms. |
| Rail-to-rail output swing | Delivers V+ − 10 mV / V− + 65 mV at 10 kΩ - maximizes signal headroom for 12-bit+ ADC interfaces at 3.3 V. |
| Ground-sensing input | Input common-mode range includes V− (GND) - enables direct measurement of 0–VREF sensor outputs without level-shifting. |
| Low quiescent current | 410 µA typical total supply current (all four amps) - reduces thermal load and extends runtime in energy-harvested systems. |
| Capacitive load tolerance | Stable with 200 pF at unity gain - simplifies driving LCD bias networks, DAC output filters, and long cables without compensation. |
Applications
| Portable Medical Sensors | Industrial Process Monitoring |
|---|---|
|
Use Scenario: Amplifying low-level signals from thermistors, RTDs, and strain gauges in handheld diagnostic tools. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous signal conditioning for temperature, pressure, and oxygen saturation channels. Use Value: Rail-to-rail output swing and ground-sensing input enable full-scale use of 3.3 V ADCs without external level shifters or bias resistors. |
Use Scenario: Signal buffering and filtering in 4–20 mA loop-powered transmitters for flow, level, and pH sensors. IC Role / Device Role / Timing Role: Configured as precision voltage followers and active RC filters to reject 50/60 Hz noise before ADC sampling. Use Value: 1 MHz bandwidth and low input bias current (<250 nA) preserve accuracy of high-impedance sensor bridges and pH electrodes. |
| Automotive Cabin Control | Smart Home Environmental Sensing |
|
Use Scenario: Conditioning cabin air quality (CO₂, VOC) and ambient light sensor outputs in HVAC control modules. IC Role / Device Role / Timing Role: Four independent amplifiers condition multiple analog sensor inputs within AEC-Q100 Grade 1 qualified design. Use Value: −40°C to +125°C operation and 2.7 V minimum supply ensure reliable function during cold cranking and under-hood thermal stress. |
Use Scenario: Signal amplification for multi-sensor nodes measuring temperature, humidity, and particulate matter in smart thermostats. IC Role / Device Role / Timing Role: Provides gain, filtering, and drive capability for low-power microcontroller ADCs in battery-operated edge devices. Use Value: 410 µA total supply current enables >1-year operation on two AA cells, while rail-to-rail output avoids clipping at low VDD. |
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 |
|---|---|---|---|
| LMV324IDR | Same electrical specs and SOIC-14 pinout; differs only in tape-and-reel packaging (DR = 2500-unit reel, MTX = 2500-unit tape). | No functional difference; both meet identical AEC-Q100 Grade 1 requirements and thermal specs. | Select LMV324IDR for automated SMT assembly requiring standard reel format; LMV324MTX/NOPB is functionally identical. |
| TLV2464CDR | Higher 6.4 MHz GBWP, 2.5 V/µs slew rate, but 650 µA supply current; requires ≥2.7 V supply, same SOIC-14 footprint. | Better for higher-frequency active filters or faster settling; less suitable for ultra-low-power battery nodes. | Choose TLV2464CDR when bandwidth >1 MHz is required; LMV324MTX/NOPB remains optimal for cost-sensitive, low-IQ designs. |
Compared with LMV324IDR, LMV324MTX/NOPB offers identical performance in a functionally equivalent package variant; versus TLV2464CDR, it trades bandwidth and speed for 37% lower supply current and broader legacy design compatibility.
Availability
LMV324MTX/NOPB is available at Aetrix Electronics and suitable for portable medical sensors, industrial process monitoring, and automotive cabin control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMV324MTX/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 power management solutions.
The LMV3xx-N family was designed specifically for cost-sensitive, low-voltage, space-constrained applications where rail-to-rail output, ground-sensing input, and ultra-low quiescent current are critical - targeting portable electronics, industrial sensors, and automotive subsystems.
FAQ
What is the operating supply voltage range for LMV324MTX/NOPB?
The LMV324MTX/NOPB operates from 2.7 V to 5.5 V single supply (or ±1.35 V to ±2.75 V dual supply), with full electrical specifications guaranteed at both 2.7 V and 5 V. This ensures robust performance across the full discharge curve of lithium-based batteries and standard 3.3 V/5 V rails. The device remains functional outside this range but is not characterized or warranted beyond the absolute maximum ratings of −0.3 V to +5.5 V on any pin.
Does LMV324MTX/NOPB support true rail-to-rail input?
No, LMV324MTX/NOPB does not support rail-to-rail input. Its input common-mode voltage range is specified from −0.2 V to V+ − 0.8 V, meaning it includes ground (V−) but cannot accept signals at or above V+. However, it does provide rail-to-rail output swing (V+ − 10 mV / V− + 65 mV at 10 kΩ), which is explicitly confirmed in the datasheet's 7.7 and 7.9 sections for both 2.7 V and 5 V operation.
Is LMV324MTX/NOPB qualified for automotive applications?
Yes, LMV324MTX/NOPB is an industrial-grade part, but the automotive-qualified variant is LMV324MQX/NOPB (AEC-Q100 Grade 1, −40°C to +125°C). While LMV324MTX/NOPB shares identical electrical specs and SOIC-14 packaging, it is not certified to AEC-Q100. For automotive cabin control or body electronics, LMV324MQX/NOPB is the designated qualified version; LMV324MTX/NOPB is intended for industrial and commercial applications.
What is the maximum capacitive load LMV324MTX/NOPB can drive without compensation?
LMV324MTX/NOPB is unity-gain stable and can directly drive up to 200 pF capacitive load without oscillation or excessive ringing, as verified in the "Gain and Phase vs Capacitive Load" plots (Figures 7-23/7-24) and Feature Description section 8.3.1. Driving heavier loads (e.g., >500 pF) requires isolation via a series resistor (e.g., 620 Ω) between the output and load, as shown in Figure 8-3 of the datasheet.
How does LMV324MTX/NOPB eliminate crossover distortion?
LMV324MTX/NOPB eliminates crossover distortion through internal output stage optimization in its bipolar BiCMOS process, unlike legacy LM324. This is demonstrated in Figures 8-1 and 8-2 of the datasheet, where LMV324-N shows clean zero-crossing in voltage-follower configuration while LM324-N exhibits visible distortion. The improvement enables accurate low-distortion signal buffering in audio paths and precision analog front-ends without external correction circuitry.
LMV324MTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMV®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LMV324MTX/NOPB FAQ
1.How can I place an order for LMV324MTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV324MTX/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 LMV324MTX/NOPB reliable?
The price and inventory of LMV324MTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV324MTX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV324MTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV324MTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV324MTX/NOPB?
LMV324MTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV324MTX/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 LMV324MTX/NOPB?
For technical support, including LMV324MTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV324MTX/NOPB requirements.
6.How does Aetrix verify that LMV324MTX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV324MTX/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 LMV324MTX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV324MTX/NOPB?
All LMV324MTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV324MTX/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 LMV324MTX/NOPB part is unused and in its original packaging.
Return procedure for LMV324MTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV324MTX/NOPB Tags
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