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Texas Instruments LMV931Q1MF/NOPB
- Part No.:
- LMV931Q1MF/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV931Q1MF/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:5,837
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Product details
Overview
LMV931Q1MF/NOPB from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive single-channel rail-to-rail input/output operational amplifier, operating from 1.8 V to 5.5 V supply, with 1.4 MHz gain-bandwidth product, 100 μA per-channel supply current, and input common-mode voltage extending 200 mV beyond rails. It delivers 30 mV output swing from rail into 2-kΩ load at 1.8 V - ideal for low-voltage engine control unit signal conditioning.
For engineers reviewing the LMV931Q1MF/NOPB datasheet, LMV931Q1MF/NOPB pinout, LMV931Q1MF/NOPB application, or LMV931Q1MF/NOPB equivalent, this page provides verified technical context, validated pin functions, confirmed automotive-grade specifications, and real-world use cases in battery management and occupant detection systems.
Technical Context
The LMV931Q1MF/NOPB employs a complementary PNP/NPN input stage enabling rail-to-rail input operation with CMVR extending −0.2 V to VS + 0.2 V at 25°C. Its unity-gain-stable architecture achieves 1.4 MHz GBW and 0.35 V/μs slew rate at 1.8 V, supporting precision DC amplification and low-frequency AC signal integrity.
Designed for single-supply automotive environments, it features 78 dB CMRR and 100 dB PSRR at 1.8 V, with input offset voltage ≤4 mV (max) and 5.5 μV/°C drift - ensuring stable performance across −40°C to +125°C ambient temperature range without external trimming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 1.8 V to 5.5 V - supports direct interface with Li-ion single-cell (3.0–4.2 V) and two-cell alkaline (2.4–3.2 V) systems without level shifting. |
| Gain-Bandwidth Product | 1.4 MHz - enables stable unity-gain buffer operation up to ~100 kHz with <1% gain error in sensor front-ends. |
| Input Offset Voltage | ≤4 mV (max at 25°C) - ensures ≤0.2% full-scale error in 2-V-range analog-to-digital converter (ADC) driver applications. |
| Output Swing (2-kΩ) | Within 30 mV of rails at 1.8 V - preserves >98% dynamic range for 12-bit ADCs with 0–1.8 V input span. |
| Supply Current per Channel | 103–205 μA - allows integration into always-on automotive subsystems with sub-1 mA total quiescent budget. |
| Input Common-Mode Range | VS− − 0.2 V to VS+ + 0.2 V - permits direct sensing of signals below ground (e.g., shunt-based current monitoring) or above VCC. |
| ESD Rating (HBM) | ±2000 V - meets AEC-Q100 stress requirements for robustness in vehicle assembly and service environments. |
Pinout & Package
LMV931Q1MF/NOPB is packaged in a 5-pin SC-70 (DCK) package measuring 2.00 mm × 1.25 mm - optimized for space-constrained automotive PCBs. Pinout conforms to standard SC-70 orientation with pin 1 at top-left corner when marking dot is upper-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| +IN (Pin 1) | Noninverting Input | High-impedance node (IB ≤35 nA) accepting signals up to VS− − 0.2 V or VS+ + 0.2 V; used for reference or sensor signal routing in high-side current sense. |
| V− (Pin 2) | Negative Supply | Ground or negative rail connection; must be decoupled with ≥0.1 μF ceramic capacitor near pin for stability under transient load conditions. |
| −IN (Pin 3) | Inverting Input | Differential complement to +IN; forms feedback path in transimpedance or difference amplifier configurations for ultrasonic receiver front-ends. |
| OUT (Pin 4) | Amplifier Output | Rail-to-rail capable output driving ≥600 Ω loads; exhibits minimal ringing with ≤1000 pF capacitive load - suitable for direct ADC input buffering. |
| V+ (Pin 5) | Positive Supply | Main power input (1.8–5.5 V); supplies internal bias circuitry and output stage; requires local 0.1 μF + 2.2 μF parallel decoupling for EMI suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for −40°C to +125°C ambient operation with HBM ±2000 V and CDM ±750 V - certified for engine bay and cabin ECU deployment. |
| Rail-to-rail input and output | Enables full utilization of 1.8-V supply range: accepts inputs down to −0.2 V and swings within 30 mV of rails into 2-kΩ - maximizes SNR in low-voltage data acquisition. |
| Ultra-low quiescent current | 103 μA typical at 1.8 V - allows continuous monitoring in battery-backed modules (e.g., crash sensors) with multi-year shelf life on coin-cell power. |
| Stable with capacitive loads | Drives up to 1000 pF with minimal overshoot - eliminates need for isolation resistors when interfacing with long traces or ADC input capacitance. |
| High DC open-loop gain | 101 dB (typical) - ensures <0.001% gain error in closed-loop configurations, critical for precision current-sense amplification in BMS shunt monitoring. |
Applications
| Engine Control Unit (ECU) Sensor Interface | Body Control Module (BCM) Signal Conditioning |
|---|---|
Use Scenario: Amplifying low-level signals from manifold absolute pressure (MAP) and throttle position sensors in 1.8-V microcontroller domains. IC Role / Device Role / Timing Role: Precision DC-coupled buffer and gain stage with rail-to-rail input enabling full-scale sensor output capture without clipping. Use Value: Maintains ≤4 mV offset error across −40°C to +125°C, reducing calibration frequency and improving long-term ECU accuracy. |
Use Scenario: Level-shifting and filtering PWM signals from door lock actuators and window motor controllers before MCU GPIO sampling. IC Role / Device Role / Timing Role: Low-power comparator alternative for zero-crossing detection and analog envelope extraction in 2.7-V BCM rails. Use Value: 100 μA supply current enables always-on status monitoring without compromising BCM sleep-mode current budgets. |
| Battery Management System (BMS) Shunt Monitoring | Occupant Detection System Front-End |
Use Scenario: Amplifying millivolt-level voltage drops across 50–100 μΩ shunt resistors in 12-V automotive battery packs. IC Role / Device Role / Timing Role: High-CMRR (78 dB), low-VOS op-amp configured as differential amplifier for accurate current measurement. Use Value: Input common-mode range extending 200 mV beyond rails allows direct connection to shunt placed on high-side of battery, eliminating isolated power requirements. |
Use Scenario: Conditioning weak capacitive-sensing signals from seat-mounted electrodes detecting occupant presence and posture. IC Role / Device Role / Timing Role: Low-noise (60 nV/√Hz), low-drift amplifier boosting microvolt-level signals prior to sigma-delta ADC conversion. Use Value: 5.5 μV/°C TCVOS minimizes thermal drift-induced false triggers during cabin temperature cycling from −40°C to +85°C. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP6001T-E/OT | Higher VOS (max 4.5 mV), no AEC-Q100 qualification, 1.0 μA supply current - not automotive-grade. | Limited to commercial-temperature industrial controls; unsuitable for under-hood deployment. | Select only for non-automotive cost-sensitive designs where AEC-Q100 compliance is unnecessary. |
| TSV911ILT | AEC-Q100 Grade 1 qualified, but higher supply current (160 μA typ), lower GBW (8 MHz), and narrower CMVR (to VS − 0.1 V). | Better for higher-speed signal chains but less efficient in ultra-low-power always-on BMS nodes. | Prefer when bandwidth >1 MHz is required and supply current margin >60 μA exists in system budget. |
Compared with MCP6001T-E/OT and TSV911ILT, LMV931Q1MF/NOPB uniquely balances AEC-Q100 Grade 1 compliance, 100 μA quiescent current, and rail-to-rail input beyond rails - making it optimal for space- and power-constrained automotive analog front-ends where certification and precision coexist.
Availability
LMV931Q1MF/NOPB is available at Aetrix Electronics and suitable for engine control units, battery management systems, and occupant detection systems requiring stable component supply across extended automotive temperature ranges and long production lifecycles.
Supply support for LMV931Q1MF/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 rigorous qualification processes.
The LMV93x-N-Q1 family was developed specifically for low-voltage, low-power automotive signal conditioning - targeting ECU, BCM, and BMS applications where rail-to-rail operation, AEC-Q100 reliability, and ultra-small packaging are mandatory.
FAQ
What is the maximum operating temperature range for LMV931Q1MF/NOPB?
The LMV931Q1MF/NOPB is AEC-Q100 Grade 1 qualified with guaranteed operation from −40°C to +125°C ambient temperature. This rating applies to the full electrical specification - including input offset voltage, gain-bandwidth, and output swing - across the entire range, making it suitable for under-hood engine control module deployment.
Does LMV931Q1MF/NOPB support true rail-to-rail input beyond the supply rails?
Yes. The LMV931Q1MF/NOPB features an input common-mode voltage range extending to VS− − 0.2 V and VS+ + 0.2 V at 25°C - confirmed in Section 6.5 CMVR specification. This allows direct interface with signals below ground (e.g., high-side current shunt outputs) or above VCC, eliminating level-shifting components in LMV931Q1MF/NOPB-based designs.
What package type is used for LMV931Q1MF/NOPB?
LMV931Q1MF/NOPB is supplied in a 5-pin SC-70 (DCK) package measuring 2.00 mm × 1.25 mm. This ultra-small outline matches the footprint specified in TI's official orderable addendum and is distinct from the SOT-23 variant - critical for layout compatibility and thermal management in dense automotive PCBs.
Can LMV931Q1MF/NOPB drive a 1000-pF capacitive load stably?
Yes. Per Section 7.3 of the datasheet, LMV931Q1MF/NOPB is characterized to drive up to 1000 pF with minimal ringing - a key feature enabling direct connection to ADC input capacitors or long PCB traces without external isolation resistors. This capability is validated across 1.8 V, 2.7 V, and 5 V supply conditions.
Is LMV931Q1MF/NOPB pin-compatible with other members of the LMV93x-N-Q1 family?
No. LMV931Q1MF/NOPB is a single-channel device in 5-pin SC-70, while LMV932-N-Q1 (dual) uses 8-pin SOIC and LMV934-N-Q1 (quad) uses 14-pin TSSOP. Pin count, spacing, and function mapping differ entirely - LMV931Q1MF/NOPB has no pin-compatible alternatives within its own family, and substitution requires board redesign.
LMV931Q1MF/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:
- 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:
- SOT-23-5
LMV931Q1MF/NOPB FAQ
1.How can I place an order for LMV931Q1MF/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV931Q1MF/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 LMV931Q1MF/NOPB reliable?
The price and inventory of LMV931Q1MF/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV931Q1MF/NOPB is usually 5 days.
3.What payment methods are accepted for LMV931Q1MF/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV931Q1MF/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV931Q1MF/NOPB?
LMV931Q1MF/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV931Q1MF/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 LMV931Q1MF/NOPB?
For technical support, including LMV931Q1MF/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV931Q1MF/NOPB requirements.
6.How does Aetrix verify that LMV931Q1MF/NOPB is sourced from the original manufacturer or authorized distributors?
All LMV931Q1MF/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 LMV931Q1MF/NOPB meets industry standards.
7.What is the process for return or replacement of LMV931Q1MF/NOPB?
All LMV931Q1MF/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMV931Q1MF/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 LMV931Q1MF/NOPB part is unused and in its original packaging.
Return procedure for LMV931Q1MF/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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