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Texas Instruments LMV321Q3M5X/NOPB
- Part No.:
- LMV321Q3M5X/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV321Q3M5X/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,362
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Product details
Overview
LMV321Q3M5X/NOPB from Texas Instruments is a single-channel, rail-to-rail output operational amplifier optimized for low-voltage (2.7 V to 5.5 V), space-constrained applications. It delivers 1 MHz gain-bandwidth, 1 V/µs slew rate, 130 µA supply current at 5 V, −0.2 V to 4.0 V input common-mode range, and rail-to-rail output swing within 10 mV of V+ and 65 mV of V− under 10 kΩ load - enabling precision signal conditioning in battery-powered portable devices.
For engineers reviewing the LMV321Q3M5X/NOPB datasheet, LMV321Q3M5X/NOPB pinout, LMV321Q3M5X/NOPB application, or LMV321Q3M5X/NOPB equivalent, key selection criteria include its AEC-Q100 Grade 3 qualification, SC70-5 package footprint (2.00 mm × 1.25 mm), guaranteed 2.7-V operation, no-crossover-distortion architecture, and −40°C to +85°C automotive temperature rating.
Technical Context
The LMV321Q3M5X/NOPB implements a bipolar-input, rail-to-rail output stage on TI's submicron BiCMOS process, delivering improved noise performance and higher output drive versus CMOS-input alternatives. Its input common-mode range extends to −0.2 V (below ground) and up to V+−0.8 V, supporting true single-supply sensing near 0 V.
It achieves stable unity-gain operation with up to 200 pF capacitive load without external compensation and eliminates crossover distortion via internal biasing - confirmed by comparative scope waveforms against legacy LM324. The device operates across dual-supply (±1.35 V to ±2.5 V) or single-supply (2.7 V to 5.5 V) configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports full operation across depleted Li-ion (3.0 V) and regulated 3.3 V/5 V rails. |
| Gain-Bandwidth Product | 1 MHz - enables stable closed-loop gain ≥10 at 100 kHz for anti-aliasing or sensor amplification. |
| Slew Rate | 1 V/µs - sufficient for 100-kHz full-scale sine output into 10 kΩ without distortion. |
| Input Offset Voltage | 1.7 mV (max) - limits DC error to ≤0.17% of 1-V output span in unity-gain buffer. |
| Rail-to-Rail Output Swing | V+−10 mV / V−+65 mV @ 10 kΩ - delivers >98% of available dynamic range at 3.3 V supply. |
| Supply Current | 130 µA typical @ 5 V - extends battery life in always-on sensor nodes (e.g., >1-year runtime on CR2032). |
| Operating Temperature | −40°C to +85°C - qualified per AEC-Q100 Grade 3 for under-hood and cabin electronics. |
Pinout & Package
LMV321Q3M5X/NOPB is packaged in a 5-pin SC70 (DCK) case measuring 2.00 mm × 1.25 mm × 0.95 mm, optimized for high-density PCB layouts and proximity placement to signal sources to minimize noise coupling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified signal source capable of sourcing/sinking ≥5 mA; rail-to-rail swing enables full utilization of ADC reference range. |
| 2 - V− | Negative Supply | Ground reference for single-supply operation; accepts 0 V or negative voltage down to −0.3 V absolute max. |
| 3 - IN− | Inverting Input | Differential input node; matched impedance to non-inverting input minimizes bias-current-induced offset. |
| 4 - IN+ | Non-inverting Input | High-impedance input (IB = 15 nA typ); supports direct connection to resistive sensors or filtered analog signals. |
| 5 - V+ | Positive Supply | Primary power rail; must be decoupled with 100 nF ceramic capacitor placed ≤2 mm from pin to ensure stability. |
Key Features
| Feature | Design Value |
|---|---|
| No Crossover Distortion | Eliminates dead-zone clipping in unity-gain buffers, preserving waveform fidelity in audio and sensor signal paths. |
| Rail-to-Rail Output | Delivers usable output swing from 65 mV above V− to 10 mV below V+, maximizing SNR in low-voltage systems. |
| Ground-Sensing Input | Input common-mode range includes −0.2 V, enabling direct interface with 0 V-referenced transducers (e.g., thermocouples, shunt monitors). |
| 200-pF Capacitive Load Drive | Stable unity-gain operation into 200 pF allows direct connection to ADC input capacitors or long PCB traces without isolation resistor. |
| AEC-Q100 Grade 3 | Qualified for automotive applications requiring −40°C to +85°C operation and robust ESD immunity (HBM ±900 V). |
Applications
| Automotive Cabin Sensors | Portable Medical Devices |
|---|---|
Use Scenario: Signal conditioning for MEMS pressure sensors in HVAC control modules. IC Role / Device Role / Timing Role: Single-supply non-inverting amplifier with gain = 10, referenced to chassis ground. Use Value: Rail-to-rail output ensures full 0–3.3 V ADC range utilization; low 130 µA quiescent current extends module battery life. |
Use Scenario: Amplifying low-level ECG electrode signals in handheld monitors. IC Role / Device Role / Timing Role: Instrumentation front-end buffer with DC-coupled input and high CMRR. Use Value: −0.2 V input range enables accurate baseline capture; 1 MHz GBW supports >100 Hz physiological bandwidth. |
| Industrial IoT Node Front-End | Smart Home Motion Detectors |
Use Scenario: Conditioning output of PIR sensor pyroelectric elements before ADC sampling. IC Role / Device Role / Timing Role: AC-coupled amplifier with high-pass filtering and gain staging. Use Value: Low supply current enables multi-year operation on coin-cell batteries; SC70-5 footprint saves board area in compact enclosures. |
Use Scenario: Amplifying weak microwave Doppler signals in battery-powered occupancy sensors. IC Role / Device Role / Timing Role: Low-noise preamplifier with 39 nV/√Hz input voltage noise at 1 kHz. Use Value: Bipolar input stage provides lower voltage noise than CMOS alternatives; AEC-Q100 Grade 3 ensures reliability in consumer-grade thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV321IDBVR | Same SC70-5 package and electrical specs; commercial-grade (−40°C to +125°C), not AEC-Q100 qualified. | Lacks automotive qualification; unsuitable for safety-critical or temperature-cycled automotive deployments. | Select when cost sensitivity outweighs automotive compliance requirements and full temperature range is not needed. |
| TSV911ICT | Higher 8 MHz GBW and 4.5 V/µs slew rate; 55 µA supply current; SOT-23-5 package (2.90 mm × 1.60 mm). | Better dynamic performance but larger footprint and incompatible pinout; requires layout revision. | Choose for higher-speed signal chains where bandwidth >1 MHz is required and board space permits larger package. |
Compared with LMV321Q3M5X/NOPB, LMV321IDBVR offers identical performance in non-automotive settings but lacks Grade 3 qualification, while TSV911ICT trades lower power and smaller size for significantly higher speed and larger footprint - making LMV321Q3M5X/NOPB optimal for cost-sensitive, space-constrained automotive Grade 3 applications demanding proven 1-MHz stability.
Availability
LMV321Q3M5X/NOPB is available at Aetrix Electronics and suitable for automotive cabin electronics, portable medical instrumentation, and industrial IoT sensor nodes requiring stable component supply with AEC-Q100 traceability and long-term lifecycle support.
Supply support for LMV321Q3M5X/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 innovation in precision amplifiers and automotive-grade ICs.
LMV321Q3M5X/NOPB belongs to TI's LMV3xx-N-Qx family of general-purpose, low-voltage op amps designed specifically for cost-sensitive, space-constrained automotive and portable applications requiring rail-to-rail output and guaranteed 2.7-V operation.
FAQ
What is the operating temperature range for LMV321Q3M5X/NOPB?
The LMV321Q3M5X/NOPB is qualified per AEC-Q100 Grade 3, specifying reliable operation from −40°C to +85°C. This range covers under-dash, cabin, and non-engine-compartment automotive environments, as well as industrial and portable consumer applications where extended ambient temperature tolerance is required. Full electrical specifications are ensured across this range per TI's characterization data.
Does LMV321Q3M5X/NOPB support single-supply operation?
Yes, LMV321Q3M5X/NOPB is explicitly designed for single-supply operation from 2.7 V to 5.5 V. Its input common-mode voltage range extends to −0.2 V (below ground) and up to V+−0.8 V, and its rail-to-rail output swings within 10 mV of V+ and 65 mV of V− under 10 kΩ load - enabling true ground-referenced signal acquisition and full dynamic range utilization in 3.3 V or 5 V systems.
What package type is used for LMV321Q3M5X/NOPB?
LMV321Q3M5X/NOPB uses the SC70-5 (DCK) package: a 5-pin surface-mount outline measuring 2.00 mm × 1.25 mm × 0.95 mm. This ultra-compact footprint is approximately half the area of the standard SOT-23-5, enabling high-density PCB layouts and placement adjacent to signal sources to reduce noise pickup and improve signal integrity.
Is LMV321Q3M5X/NOPB pin-compatible with other LMV321 variants?
LMV321Q3M5X/NOPB shares identical pinout (IN+, IN−, OUT, V−, V+) and SC70-5 package dimensions with LMV321IDBVR and LMV321M5X/NOPB. However, it is not pin-compatible with SOT-23-5 variants like LMV321MFX/NOPB due to different land patterns and thermal pad configurations - mechanical verification is required before substitution.
What is the maximum capacitive load LMV321Q3M5X/NOPB can drive stably?
LMV321Q3M5X/NOPB is characterized for stable unity-gain operation with up to 200 pF capacitive load, as confirmed in TI's datasheet Figure 7-23 (Gain and Phase vs Capacitive Load). Driving heavier loads (e.g., >500 pF) requires external isolation (e.g., series RISO) or feedback network adjustment to maintain phase margin above 60° and prevent oscillation.
LMV321Q3M5X/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- 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:
- 130µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV321Q3M5X/NOPB FAQ
1.How can I place an order for LMV321Q3M5X/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV321Q3M5X/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 LMV321Q3M5X/NOPB reliable?
The price and inventory of LMV321Q3M5X/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV321Q3M5X/NOPB is usually 5 days.
3.What payment methods are accepted for LMV321Q3M5X/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV321Q3M5X/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV321Q3M5X/NOPB?
LMV321Q3M5X/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV321Q3M5X/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 LMV321Q3M5X/NOPB?
For technical support, including LMV321Q3M5X/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV321Q3M5X/NOPB requirements.
6.How does Aetrix verify that LMV321Q3M5X/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV321Q3M5X/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 LMV321Q3M5X/NOPB meets industry standards.
7.What is the process for return or replacement of LMV321Q3M5X/NOPB?
All LMV321Q3M5X/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV321Q3M5X/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 LMV321Q3M5X/NOPB part is unused and in its original packaging.
Return procedure for LMV321Q3M5X/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV321Q3M5X/NOPB Tags
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