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Texas Instruments LMV321Q1M5/NOPB
- Part No.:
- LMV321Q1M5/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV321Q1M5/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,904
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Product details
Overview
LMV321Q1M5/NOPB from Texas Instruments is a single-channel, rail-to-rail output operational amplifier designed 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, −40°C to +125°C automotive-grade operation, and rail-to-rail output swing (V+−10 mV / V−+65 mV @ 10 kΩ), enabling precision signal conditioning in battery-powered sensor interfaces and portable instrumentation.
For engineers reviewing the LMV321Q1M5/NOPB datasheet, LMV321Q1M5/NOPB pinout, LMV321Q1M5/NOPB application, or LMV321Q1M5/NOPB equivalent, key selection criteria include AEC-Q100 Grade 1 qualification, SC70-5 package footprint (2.00 mm × 1.25 mm), input common-mode range extending to −0.2 V, no crossover distortion, and verified 2.7-V/5-V DC/AC performance across temperature.
Technical Context
The LMV321Q1M5/NOPB uses a bipolar input stage and BiCMOS process to achieve low input bias current (15 nA typ. at 5 V), high output drive (±40 mA short-circuit current), and excellent noise performance (39 nV/√Hz at 1 kHz). Its rail-to-rail output stage operates down to 10 mV from V+ and 65 mV above V− under 10 kΩ load, supporting full dynamic range in single-supply systems.
It features stable unity-gain operation with up to 200 pF capacitive load, 60° phase margin, and 10 dB gain margin. The input common-mode voltage range (−0.2 V to V+−0.8 V) includes ground, enabling direct sensing of near-ground signals without level-shifting circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V - supports full operation across Li-ion battery discharge curve (3.0 V–4.2 V) and 3.3 V/5 V rails. |
| Gain-Bandwidth Product | 1 MHz - enables stable closed-loop gain ≥10 up to 100 kHz for anti-aliasing or active filtering. |
| Slew Rate | 1 V/µs - sufficient for 100 kHz full-scale sine output at 1.59 V peak without distortion. |
| Input Offset Voltage | 1.7 mV (max) - ensures ≤0.034% error in 5 V full-scale 12-bit ADC front-end with unity-gain buffer. |
| Supply Current | 130 µA (typ. at 5 V) - extends battery life in always-on sensor nodes; <200 µA over full temp range. |
| Rail-to-Rail Output | V+−10 mV / V−+65 mV @ 10 kΩ - preserves >99% of available output swing at 5 V, critical for low-headroom systems. |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 Grade 1, suitable for under-hood automotive and industrial control environments. |
Pinout & Package
LMV321Q1M5/NOPB is packaged in a 5-pin SC70 (DCK) case measuring 2.00 mm × 1.25 mm, optimized for high-density PCB layouts and portable electronics. Its compact footprint occupies ~55% less area than comparable SOT-23-5 devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified signal source; drives loads ≥10 kΩ directly; requires external isolation resistor for >200 pF capacitive loads. |
| 2 - V− | Negative Supply | Ground reference in single-supply mode; must be connected to system GND; not internally tied to substrate. |
| 3 - IN− | Inverting Input | Differential input node; bias current flows out (15 nA typ.); matched impedance at IN+ minimizes offset error. |
| 4 - IN+ | Noninverting Input | Differential input node; accepts signals from −0.2 V to V+−0.8 V; enables ground-referenced sensor interfacing. |
| 5 - V+ | Positive Supply | Main power rail; decoupling capacitor (0.1 µF ceramic) required within 2 mm for stability and PSRR optimization. |
Key Features
| Feature | Design Value |
|---|---|
| No Crossover Distortion | Eliminates dead-zone nonlinearity in unity-gain buffers, ensuring monotonic output response during zero-crossings - critical for audio and precision measurement paths. |
| Rail-to-Rail Output Swing | Delivers usable output voltage within 10 mV of V+ and 65 mV of V− at 10 kΩ, maximizing signal-to-noise ratio in low-voltage systems (e.g., 3.3 V IoT sensors). |
| AEC-Q100 Grade 1 Qualification | Validated for automotive use from −40°C to +125°C ambient, including HTOL, TC, ESD (HBM ±900 V), and mechanical stress testing per JESD47. |
| Low 130 µA Supply Current | Enables continuous operation in coin-cell-powered devices (e.g., 220 mAh CR2032 lasts >2 years at 130 µA avg. draw). |
| 200 pF Capacitive Load Stability | Operates unconditionally stable in unity-gain configuration with up to 200 pF load - eliminates need for external compensation in many sensor driver applications. |
Applications
| Automotive Cabin Sensors | Portable Medical Monitors |
|---|---|
Use Scenario: Signal conditioning for analog outputs of MEMS pressure and humidity sensors in HVAC control modules. IC Role / Device Role / Timing Role: Single-supply rail-to-rail buffer and gain stage interfacing 0–3 V sensor outputs to 12-bit SAR ADCs. Use Value: −0.2 V to 4.2 V input common-mode range allows direct connection to grounded-sense elements; 130 µA quiescent current reduces thermal drift in sealed enclosures. |
Use Scenario: Front-end amplification for ECG electrode signals in handheld patient monitors. IC Role / Device Role / Timing Role: Low-noise, low-power instrumentation amplifier input stage with DC-coupled input and high CMRR (>63 dB). Use Value: Bipolar input stage provides 39 nV/√Hz input voltage noise and 0.21 pA/√Hz current noise - optimal for high-impedance biopotential sources. |
| Industrial Smart Transmitters | Consumer Wearable Motion Sensing |
Use Scenario: 4–20 mA loop-powered transmitter signal conditioning with microcontroller-based calibration. IC Role / Device Role / Timing Role: Precision voltage follower and level shifter converting 0–2.5 V DAC outputs to 0.5–4.5 V sensor excitation ranges. Use Value: 1.7 mV max input offset and 5 µV/°C drift ensure <0.1% FSR error over −40°C to +85°C operating range without trimming. |
Use Scenario: Analog front-end for 3-axis accelerometer outputs in fitness trackers. IC Role / Device Role / Timing Role: Low-quiescent-current signal buffer driving internal ADC inputs while minimizing system power budget. Use Value: SC70-5 package (2.00 mm × 1.25 mm) enables placement adjacent to MEMS die, reducing trace-induced noise pickup by >20 dB vs. SOT-23 alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMV321M5X/NOPB | Commercial-grade (non-AEC-Q100); identical electrical specs but rated only for −40°C to +125°C without automotive qualification testing. | Lacks AEC-Q100 Grade 1 validation; unsuitable for automotive safety-critical or mission-critical modules requiring PPAP documentation. | Select LMV321M5X/NOPB only for cost-sensitive industrial or consumer designs where automotive qualification is unnecessary. |
| TSV911ICT | Higher GBWP (8 MHz), lower input offset (1.5 mV max), but higher supply current (200 µA) and no AEC-Q100 rating. | Better AC performance for higher-frequency filtering, but incompatible with strict automotive thermal/lifecycle requirements. | Choose TSV911ICT when bandwidth >1 MHz is required and automotive qualification is not mandated. |
Compared with LMV321Q1M5/NOPB, LMV321M5X/NOPB offers identical performance at lower cost but lacks automotive traceability and stress-test validation, while TSV911ICT trades quiescent power and qualification for higher speed - making LMV321Q1M5/NOPB optimal for AEC-Q100-compliant, ultra-low-power, rail-to-rail sensing.
Availability
LMV321Q1M5/NOPB is available at Aetrix Electronics and suitable for automotive cabin control, portable medical instrumentation, industrial 4–20 mA transmitters, and consumer wearable motion sensing requiring stable component supply across extended temperature and lifecycle demands.
Supply support for LMV321Q1M5/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 decades of automotive IC design expertise and broad manufacturing scale.
LMV321Q1M5/NOPB belongs to TI's LMV3xx-Q1 automotive op amp family, engineered specifically for cost-sensitive, low-voltage, rail-to-rail signal conditioning in harsh-environment applications such as body electronics and battery management.
FAQ
What is the AEC-Q100 qualification status of LMV321Q1M5/NOPB?
LMV321Q1M5/NOPB is qualified per AEC-Q100 Grade 1, meaning it is certified for operation from −40°C to +125°C ambient temperature and has passed stress tests including HTOL, temperature cycling, and HBM ESD (±900 V). This makes LMV321Q1M5/NOPB suitable for non-safety-critical automotive applications such as climate control and lighting modules.
Does LMV321Q1M5/NOPB support true single-supply operation with input signals at ground?
Yes. LMV321Q1M5/NOPB features an input common-mode voltage range that extends to −0.2 V (below ground) and up to V+−0.8 V, allowing direct interface with ground-referenced sensors and transducers without level-shifting circuitry - a key enabler for single-supply 3.3 V or 5 V systems.
What is the maximum capacitive load LMV321Q1M5/NOPB can drive without oscillation?
LMV321Q1M5/NOPB is stable driving up to 200 pF in unity-gain configuration, as confirmed by phase margin (60°) and gain margin (10 dB) data in the datasheet. For heavier loads, a series isolation resistor (e.g., 620 Ω) between output and capacitance restores stability while preserving DC accuracy when combined with feedback compensation.
How does the rail-to-rail output capability of LMV321Q1M5/NOPB improve system dynamic range?
LMV321Q1M5/NOPB achieves output swing to within 10 mV of V+ and 65 mV of V− under 10 kΩ load. At 5 V supply, this delivers 4.99 V of usable range - 99.8% of full scale - significantly improving SNR in ADC-driven systems compared to traditional op amps limited to 1–2 V headroom.
Is LMV321Q1M5/NOPB pin-compatible with other members of the LMV3xx family?
LMV321Q1M5/NOPB uses the SC70-5 (DCK) package and shares identical pinout with LMV321M5X/NOPB and LMV321IDCKR. However, it is not pin-compatible with dual (LMV358) or quad (LMV324) variants due to differing channel count and package configurations - always verify package drawing and pin function tables before board reuse.
LMV321Q1M5/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 ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV321Q1M5/NOPB FAQ
1.How can I place an order for LMV321Q1M5/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV321Q1M5/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 LMV321Q1M5/NOPB reliable?
The price and inventory of LMV321Q1M5/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV321Q1M5/NOPB is usually 5 days.
3.What payment methods are accepted for LMV321Q1M5/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV321Q1M5/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV321Q1M5/NOPB?
LMV321Q1M5/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV321Q1M5/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 LMV321Q1M5/NOPB?
For technical support, including LMV321Q1M5/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV321Q1M5/NOPB requirements.
6.How does Aetrix verify that LMV321Q1M5/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV321Q1M5/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 LMV321Q1M5/NOPB meets industry standards.
7.What is the process for return or replacement of LMV321Q1M5/NOPB?
All LMV321Q1M5/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV321Q1M5/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 LMV321Q1M5/NOPB part is unused and in its original packaging.
Return procedure for LMV321Q1M5/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV321Q1M5/NOPB Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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