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Texas Instruments LMV931Q1MGX/NOPB
- Part No.:
- LMV931Q1MGX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV931Q1MGX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
LMV931Q1MGX/NOPB from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive single-channel rail-to-rail input/output operational amplifier optimized for 1.8-V operation. It delivers 1.4-MHz gain-bandwidth product, 100-μA supply current per channel, 4-mV max input offset voltage, and output swing within 30 mV of rails under 2-kΩ load - enabling precision signal conditioning in engine control units and battery management systems.
For engineers reviewing the LMV931Q1MGX/NOPB datasheet, LMV931Q1MGX/NOPB pinout, LMV931Q1MGX/NOPB application, or LMV931Q1MGX/NOPB equivalent, this page provides verified technical context, automotive-grade reliability data, package-specific layout guidance, and validated alternative options for ECU, BMS, and occupant detection designs.
Technical Context
The LMV931Q1MGX/NOPB implements a complementary PNP/NPN input stage to achieve rail-to-rail common-mode input range extending 200 mV beyond V− and V+, with guaranteed operation from −40°C to +125°C ambient. Its open-loop gain exceeds 101 dB at 1.8 V, supporting high-accuracy DC-coupled sensing in low-voltage automotive subsystems.
Designed for single-supply 1.8-V to 5.5-V operation, it drives capacitive loads up to 1000 pF with minimal ringing and maintains stable phase margin (≥67°) across supply voltages - critical for sensor front-ends and ultrasonic ranging interfaces where signal integrity and power efficiency are co-constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct integration into single-cell Li-ion and two-cell alkaline automotive power domains |
| Gain-Bandwidth Product | 1.4 MHz - enables stable closed-loop gain up to 100× at 14 kHz for ultrasonic transducer signal amplification |
| Input Offset Voltage (max) | 4 mV - ensures ≤0.2% error in 2-V full-scale current-sense applications without trimming |
| Supply Current (per channel) | 100 μA - allows continuous operation in always-on vehicle modules with sub-100-μA system budget |
| Output Swing (2-kΩ load) | Within 30 mV of rails - preserves dynamic range in 1.8-V ADC interfaces with no level-shifting required |
| Input Common-Mode Range | V− − 0.2 V to V+ + 0.2 V - permits direct sensing of signals below ground or above supply in BCM analog inputs |
| CMRR (min) | 55 dB - rejects noise in high-impedance thermistor or potentiometer circuits near switching regulators |
Pinout & Package
SOT-23 (5-pin) package: 2.90 mm × 1.60 mm body size, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 1) | Noninverting Input | Accepts sensor signals referenced to ground or V−; supports common-mode down to V− − 0.2 V |
| V− (Pin 2) | Negative Supply | Ground reference for single-supply operation; connects to PCB ground plane for thermal and noise control |
| −IN (Pin 3) | Inverting Input | Used for feedback in unity-gain buffers or differential configurations; matched input bias current minimizes offset |
| OUT (Pin 4) | Amplifier Output | Drives 600-Ω loads to within 105 mV of rails at 1.8 V; stable with ≥1000-pF capacitive loads |
| V+ (Pin 5) | Positive Supply | Accepts 1.8–5.5 V; decoupling capacitor required within 5 mm for EMI suppression in ECU environments |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation in safety-critical automotive ECUs and airbag controllers |
| Rail-to-rail input and output | Enables full utilization of 1.8-V ADC input range without external level-shifting circuitry |
| 200-mV beyond-rail input common-mode range | Supports direct connection to sensors with output swing exceeding supply rails (e.g., piezoelectric transducers) |
| 100-μA supply current per channel | Reduces quiescent power in always-on vehicle networks (e.g., LIN bus wake-up receivers) |
| 1.4-MHz GBW at 1.8 V | Permits closed-loop bandwidth >100 kHz in gain-of-10 configurations for fast-response BMS cell voltage monitoring |
Applications
| Engine Control Unit (ECU) Sensor Interface | Body Control Module (BCM) Analog Front-End |
|---|---|
Use Scenario: Amplifying low-level signals from oxygen sensors and knock detectors in gasoline/diesel powertrains. IC Role / Device Role / Timing Role: Precision DC-coupled signal conditioner with rail-to-rail input enabling full sensor voltage range capture at 1.8 V. Use Value: 4-mV max VOS and 55-dB min CMRR reduce calibration drift and noise coupling from ignition systems. | Use Scenario: Conditioning analog outputs from door lock actuators, seat position sensors, and ambient light detectors. IC Role / Device Role / Timing Role: Low-power buffer and gain stage operating from 1.8-V microcontroller I/O supply. Use Value: 100-μA supply current extends battery life in keyless entry modules; SOT-23 footprint saves PCB area in space-constrained door modules. |
| Battery Management System (BMS) Cell Monitoring | Occupant Detection System Signal Chain |
Use Scenario: Amplifying voltage differences across shunt resistors and cell taps in 12-V automotive battery packs. IC Role / Device Role / Timing Role: High-accuracy current sense amplifier with rail-to-rail output driving 12-bit SAR ADC inputs. Use Value: Output swing within 30 mV of rails at 1.8 V maximizes SNR in low-voltage ADC interfaces without external biasing. | Use Scenario: Signal conditioning for capacitive or piezoresistive pressure sensors in seat cushion and dashboard airbag deployment systems. IC Role / Device Role / Timing Role: Low-noise, low-drift amplifier for DC-coupled biometric signal acquisition. Use Value: 200-mV beyond-rail input range accepts sensor outputs exceeding supply rails; AEC-Q100 qualification ensures functional safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TSV911IQDBVRQ1 | Higher 8-MHz GBW but 130-μA supply current; 1.5-mV max VOS | Better for higher-frequency sensor interfaces (e.g., radar IF stages); less suitable for ultra-low-power always-on nodes | Select when bandwidth >2 MHz is required and 30-μA higher quiescent current is acceptable |
| MCP6001T-E/OT | Non-automotive grade; 1-μA supply current but only 1-kHz GBW; 2-mV max VOS | Targeted at cost-sensitive non-safety-critical consumer modules; lacks AEC-Q100 qualification and temperature range | Use only in non-automotive or non-safety-critical prototypes; not qualified for production ECU/BCM use |
Compared with TSV911IQDBVRQ1 and MCP6001T-E/OT, LMV931Q1MGX/NOPB uniquely balances 1.4-MHz bandwidth, 100-μA quiescent current, AEC-Q100 Grade 1 qualification, and rail-to-rail operation - making it optimal for production automotive analog signal chains where power, precision, and reliability are jointly constrained.
Availability
LMV931Q1MGX/NOPB is available at Aetrix Electronics and suitable for engine control units, battery management systems, and occupant detection systems requiring stable component supply across automotive production lifecycles.
Supply support for LMV931Q1MGX/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 company specializing in analog and embedded processing technologies, with leadership in automotive-grade IC design and manufacturing.
The LMV93x-N-Q1 product line was engineered specifically for low-voltage, low-power signal conditioning in automotive subsystems - including ECUs, BCMS, and safety-critical sensor interfaces - where rail-to-rail performance and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum operating temperature for LMV931Q1MGX/NOPB?
The LMV931Q1MGX/NOPB is AEC-Q100 Grade 1 qualified with a guaranteed ambient operating temperature range of −40°C to +125°C. This specification is validated per test conditions in the official TI datasheet SNOSD49, and applies to the SOT-23 packaged LMV931Q1MGX/NOPB device under recommended operating conditions (1.8 V to 5.5 V supply).
Does LMV931Q1MGX/NOPB support rail-to-rail input and output simultaneously?
Yes, LMV931Q1MGX/NOPB supports true rail-to-rail input and output operation. Its input common-mode voltage range extends from V− − 0.2 V to V+ + 0.2 V, and its output swings to within 30 mV of each rail under 2-kΩ load at 1.8 V - enabling full dynamic range utilization in single-supply 1.8-V systems without external level-shifting components.
What is the typical supply current of LMV931Q1MGX/NOPB at 1.8 V?
The typical supply current of LMV931Q1MGX/NOPB at 1.8 V is 103 μA per channel, with a maximum of 205 μA over full temperature and process variation. This value is specified in Section 6.5 (DC Electrical Characteristics at 1.8 V) of the TI datasheet SNOSD49 and confirmed across production lots for automotive qualification.
Can LMV931Q1MGX/NOPB drive capacitive loads?
Yes, LMV931Q1MGX/NOPB is characterized to drive up to 1000-pF capacitive loads with minimal ringing and stable phase margin (≥67°). This capability is documented in the "Typical Characteristics" section of the TI datasheet SNOSD49 and validated for use in sensor interface circuits with long traces or ADC input capacitance.
Is LMV931Q1MGX/NOPB pin-compatible with other LMV93x-N-Q1 family members?
No, LMV931Q1MGX/NOPB is not pin-compatible with LMV932-N-Q1 (dual) or LMV934-N-Q1 (quad). It uses a 5-pin SOT-23 package with dedicated +IN, −IN, OUT, V−, and V+ pins, whereas the dual and quad variants use 8-pin SOIC and 14-pin TSSOP packages with different pinouts and channel counts. Pin compatibility exists only within same-channel-count variants sharing identical package types.
LMV931Q1MGX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.42V/µs
- Gain Bandwidth Product:
- 1.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 14 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 116µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 1.8 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:
- SC-70-5
LMV931Q1MGX/NOPB FAQ
1.How can I place an order for LMV931Q1MGX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV931Q1MGX/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 LMV931Q1MGX/NOPB reliable?
The price and inventory of LMV931Q1MGX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV931Q1MGX/NOPB is usually 5 days.
3.What payment methods are accepted for LMV931Q1MGX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV931Q1MGX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV931Q1MGX/NOPB?
LMV931Q1MGX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV931Q1MGX/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 LMV931Q1MGX/NOPB?
For technical support, including LMV931Q1MGX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV931Q1MGX/NOPB requirements.
6.How does Aetrix verify that LMV931Q1MGX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV931Q1MGX/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 LMV931Q1MGX/NOPB meets industry standards.
7.What is the process for return or replacement of LMV931Q1MGX/NOPB?
All LMV931Q1MGX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV931Q1MGX/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 LMV931Q1MGX/NOPB part is unused and in its original packaging.
Return procedure for LMV931Q1MGX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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