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Texas Instruments LMV321Q1M5X/NOPB
- Part No.:
- LMV321Q1M5X/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV321Q1M5X/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,013
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Product details
Overview
LMV321Q1M5X/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 automotive applications. It delivers 1 MHz gain-bandwidth, 1 V/µs slew rate, 130 µA supply current at 5 V, −40°C to +125°C operating range, and rail-to-rail output swing (V+−10 mV / V−+65 mV at 10 kΩ), enabling precision signal conditioning in battery-powered ADAS sensors and body control modules.
For engineers reviewing the LMV321Q1M5X/NOPB datasheet, LMV321Q1M5X/NOPB pinout, LMV321Q1M5X/NOPB application, or LMV321Q1M5X/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 guaranteed 2.7-V/5-V performance across temperature.
Technical Context
The LMV321Q1M5X/NOPB uses a bipolar input/output stage fabricated on Texas Instruments' submicron BiCMOS process, delivering improved noise performance and higher output drive versus CMOS-input op amps. Its rail-to-rail output architecture enables full dynamic range utilization near supply rails, while the input common-mode voltage range includes ground (−0.2 V to V+−0.8 V), supporting single-supply sensing at 0 V reference.
It operates as a unity-gain stable voltage amplifier with 60° phase margin into 200 pF capacitive load and exhibits no crossover distortion in follower configurations-critical for accurate low-level signal buffering in automotive sensor interfaces where linearity and DC accuracy are essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - supports full operation across Li-ion battery discharge curve (3.0 V–4.2 V) and 5-V rail systems without brownout. |
| Gain-Bandwidth Product | 1 MHz - enables stable closed-loop gain up to 10× at 100 kHz for anti-aliasing and sensor signal amplification. |
| Slew Rate | 1 V/µs - ensures faithful reproduction of 100-kHz sine waves with ≤1% distortion at 1-Vpp output. |
| Input Offset Voltage | 1.7 mV (max) - limits DC error to <0.35% of full-scale in 500-mV sensor output conditioning paths. |
| Rail-to-Rail Output Swing | V+−10 mV / V−+65 mV @ 10 kΩ - delivers >98% of supply voltage range for maximum ADC utilization in 12-bit systems. |
| Quiescent Current | 130 µA @ 5 V - extends battery life in always-on vehicle modules (e.g., door latch status monitoring). |
| AEC-Q100 Grade | Grade 1 (−40°C to +125°C) - qualified for engine bay, transmission control, and front-end ADAS ECU environments. |
Pinout & Package
LMV321Q1M5X/NOPB is packaged in a 5-pin SC70 (DCK) case measuring 2.00 mm × 1.25 mm × 0.95 mm, optimized for high-density automotive PCB layouts and thermal performance (RθJA = 478°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified signal source; drives loads ≥10 kΩ directly; requires series resistor for >200 pF capacitive loads. |
| 2 - V− | Negative Supply | Ground reference for single-supply operation; must be connected to system GND with low-impedance path. |
| 3 - IN− | Inverting Input | Feedback node in standard configurations; bias current (15 nA typ.) necessitates matched impedance at IN+ for offset minimization. |
| 4 - IN+ | Noninverting Input | Sensor or reference signal input; common-mode range includes −0.2 V, enabling direct 0-V referenced transducer interfacing. |
| 5 - V+ | Positive Supply | Primary power rail (2.7–5.5 V); decoupling capacitor (0.1 µF ceramic) required within 2 mm of this pin. |
Key Features
| Feature | Design Value |
|---|---|
| No Crossover Distortion | Eliminates dead-zone nonlinearity in unity-gain buffers, preserving signal fidelity for precision analog front-ends in oxygen or pressure sensors. |
| Rail-to-Rail Output | Enables full-scale utilization of 3.3-V or 5-V ADCs without level-shifting circuitry, reducing BOM count and layout area. |
| Ground-Sensing Input | Accepts input signals down to −0.2 V, allowing direct connection to shunt-based current monitors or grounded thermistors. |
| AEC-Q100 Qualified | Validated for automotive reliability (HTOL, TC, ESD HBM ±900 V), eliminating requalification effort for Tier 1 production programs. |
| Low 130-µA Quiescent Current | Permits continuous operation in always-on domains (e.g., CAN wake-up receivers) with <1 µW standby power per channel. |
Applications
| Automotive Cabin Pressure Sensor Interface | ADAS Camera Power Rail Monitor |
|---|---|
Use Scenario: Amplifying low-level differential output (±25 mV) from MEMS cabin pressure transducers in HVAC control units. IC Role / Device Role / Timing Role: Precision DC-coupled instrumentation amplifier stage with gain = 20, rejecting common-mode noise from 12-V supply switching. Use Value: 1.7-mV max VOS and rail-to-rail output ensure >10-bit effective resolution over full 0–100 kPa range without calibration. |
Use Scenario: Monitoring 5-V power rail integrity for image sensor modules in forward-facing ADAS cameras. IC Role / Device Role / Timing Role: Comparator input buffer and voltage divider interface, driving ADC input with minimal loading error. Use Value: Input common-mode range to −0.2 V allows direct connection to resistive divider tied to GND, eliminating level-shift components. |
| Body Control Module Window Lift Detection | Electric Power Steering (EPS) Motor Current Sense |
Use Scenario: Detecting motor stall current during window lift/glass pinch detection in door modules. IC Role / Device Role / Timing Role: High-side current sense amplifier with 50× gain, converting shunt voltage to 0–3.3 V for microcontroller ADC. Use Value: 130 µA supply current enables integration into ultra-low-power wake-on-motion subsystems without compromising battery drain budget. |
Use Scenario: Isolated current measurement of 3-phase motor phase currents in EPS torque assist circuits. IC Role / Device Role / Timing Role: Low-offset buffer for shunt-based current feedback, feeding isolated sigma-delta modulator inputs. Use Value: No crossover distortion ensures linear response across zero-crossing events critical for FOC (Field-Oriented Control) algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar general-purpose operational amplifier 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 documentation and stress test reports; unsuitable for production automotive ECUs requiring PPAP submission. | Select LMV321M5X/NOPB only for prototyping or non-safety-critical industrial applications where qualification overhead is prohibitive. |
| TSV911ICT | Higher GBWP (8 MHz), lower VOS (1.5 mV max), but 250 µA IQ; SC70-5 package; AEC-Q100 Grade 1 certified. | Better AC performance and offset, but higher supply current reduces battery runtime in always-on nodes. | Choose TSV911ICT when bandwidth >1 MHz or offset <1.5 mV is mandatory; accept 92% higher quiescent power penalty. |
Compared with LMV321M5X/NOPB, LMV321Q1M5X/NOPB adds formal AEC-Q100 Grade 1 validation without electrical trade-offs, while TSV911ICT trades 92% higher supply current for 8× bandwidth and tighter offset-making LMV321Q1M5X/NOPB optimal for cost-sensitive, battery-aware automotive signal chains where 1-MHz bandwidth suffices.
Availability
LMV321Q1M5X/NOPB is available at Aetrix Electronics and suitable for automotive sensor interfaces, body electronics control units, and ADAS power monitoring systems requiring stable component supply with full AEC-Q100 compliance and long-term lifecycle support.
Supply support for LMV321Q1M5X/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 ISO/TS 16949-certified manufacturing.
LMV321Q1M5X/NOPB belongs to TI's LMV3xx-Q1 automotive op amp family, engineered specifically for cost-sensitive, low-power, single-supply signal conditioning in engine, chassis, and body electronics where rail-to-rail operation and AEC-Q100 reliability are mandatory.
FAQ
What is the AEC-Q100 qualification status of LMV321Q1M5X/NOPB?
LMV321Q1M5X/NOPB is fully qualified to AEC-Q100 Grade 1 standards (−40°C to +125°C ambient), including HTOL, temperature cycling, ESD (HBM ±900 V), and mechanical shock testing. This certification is documented in TI's official AEC-Q100 report for the LMV321-Q1 family and applies directly to the LMV321Q1M5X/NOPB SC70-5 variant.
Does LMV321Q1M5X/NOPB support true single-supply operation with input signals at ground?
Yes. LMV321Q1M5X/NOPB features an input common-mode voltage range extending to −0.2 V (below ground) and up to V+−0.8 V, enabling direct interfacing with grounded sensors like thermistors or current shunts without level-shifting circuitry. The −0.2-V lower limit requires external clamping if inputs may go more negative than −0.3 V.
What is the maximum capacitive load LMV321Q1M5X/NOPB can drive without compensation?
LMV321Q1M5X/NOPB is unity-gain stable and can directly drive up to 200 pF capacitive load with ≥60° phase margin, as verified in TI's SNOS012K datasheet Figure 7-23. For loads exceeding 200 pF, a series isolation resistor (e.g., 620 Ω) between output and capacitance is required to maintain stability.
How does the rail-to-rail output capability of LMV321Q1M5X/NOPB improve system dynamic range?
LMV321Q1M5X/NOPB achieves V+−10 mV and V−+65 mV output swing into 10 kΩ, delivering >98% of the available supply voltage range. This maximizes effective resolution when driving 12-bit ADCs in 3.3-V or 5-V automotive systems, eliminating need for external level-shifting and reducing total harmonic distortion in sensor signal chains.
Is LMV321Q1M5X/NOPB pin-compatible with other LMV321 variants?
Yes. LMV321Q1M5X/NOPB in SC70-5 (DCK) package shares identical pinout with LMV321M5X/NOPB (commercial) and LMV321IDCKR (industrial). All use Pin 1=OUT, Pin 2=V−, Pin 3=IN−, Pin 4=IN+, Pin 5=V+, enabling drop-in replacement across grade variants when board layout accommodates SC70-5 footprint.
LMV321Q1M5X/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
LMV321Q1M5X/NOPB FAQ
1.How can I place an order for LMV321Q1M5X/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV321Q1M5X/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 LMV321Q1M5X/NOPB reliable?
The price and inventory of LMV321Q1M5X/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV321Q1M5X/NOPB is usually 5 days.
3.What payment methods are accepted for LMV321Q1M5X/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV321Q1M5X/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV321Q1M5X/NOPB?
LMV321Q1M5X/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV321Q1M5X/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 LMV321Q1M5X/NOPB?
For technical support, including LMV321Q1M5X/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV321Q1M5X/NOPB requirements.
6.How does Aetrix verify that LMV321Q1M5X/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV321Q1M5X/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 LMV321Q1M5X/NOPB meets industry standards.
7.What is the process for return or replacement of LMV321Q1M5X/NOPB?
All LMV321Q1M5X/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV321Q1M5X/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 LMV321Q1M5X/NOPB part is unused and in its original packaging.
Return procedure for LMV321Q1M5X/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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