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Texas Instruments LMV771MG
- Part No.:
- LMV771MG
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 5-TSSOP, SC-70-5, SOT-353
- Datasheet:
-
LMV771MG.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SC70-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,770
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Product details
Overview
LMV771MG from Texas Instruments is a single-channel, rail-to-rail output, low-noise precision operational amplifier in SC70-5 package. It delivers 3.5 MHz gain-bandwidth product, 850 µV max input offset voltage (25°C), 7.5 nV/√Hz voltage noise at 10 kHz, and 550 µA supply current per amplifier - optimized for transducer amplification and precision current sensing in battery-powered instrumentation.
For engineers reviewing the LMV771MG datasheet, LMV771MG pinout, LMV771MG application, or LMV771MG equivalent, this page provides verified specifications, SC70-5 terminal mapping, real-world use cases in portable electronics and automotive sensor interfaces, and two validated alternative op-amps with documented functional trade-offs.
Technical Context
The LMV771MG employs a CMOS input stage enabling ultra-low input bias current (100 pA typical) and rail-to-rail output swing within 50 mV of each rail into 2 kΩ loads. Its internal architecture supports stable operation with capacitive loads up to 600 pF while maintaining ≥79° phase margin at 5 V supply.
It operates across 2.7 V to 5.5 V supply range and −40°C to +125°C temperature grade, with guaranteed DC performance including 100 dB large-signal voltage gain (RL = 2 kΩ), 80 dB CMRR over 0–1.8 V common-mode range, and 76 dB PSRR across full supply range - making it suitable for high-accuracy signal conditioning where thermal drift and supply rejection are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct interface with Li-ion battery systems and 3.3 V/5 V logic without level-shifting. |
| Input Offset Voltage (max) | 0.85 mV at 25°C - ensures ≤0.5% error in 100 mV full-scale current-sense applications without trimming. |
| Gain-Bandwidth Product | 3.5 MHz - supports stable closed-loop gain ≥10 up to 350 kHz for anti-aliasing filter design. |
| Voltage Noise Density | 7.5 nV/√Hz at 10 kHz - minimizes added noise in 100 Hz–10 kHz sensor bandwidths (e.g., strain gauges). |
| Output Swing (RL = 2 kΩ) | Within 50 mV of rails at 2.7 V - preserves dynamic range in low-voltage ADC front-ends. |
| Supply Current per Amplifier | 550 µA - allows >1000 hours of operation on a 500 mAh coin cell in always-on sensor nodes. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive and industrial motor control environments. |
Pinout & Package
LMV771MG is housed in a 5-pin SC70 package (2.0 mm × 1.25 mm, 0.65 mm pitch), optimized for space-constrained PCB layouts in portable and automotive modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Output | Delivers rail-to-rail voltage swing; drives loads down to 600 Ω with <150 mV headroom. |
| 2 (−IN) | Inverting Input | High-impedance CMOS node; accepts differential signals referenced to ground or mid-supply. |
| 3 (GND) | Ground | Reference return path for input common-mode and output swing; must be low-inductance connection. |
| 4 (+IN) | Non-inverting Input | High-impedance CMOS node; supports unity-gain buffer configurations with minimal input current error. |
| 5 (V+) | Positive Supply | Accepts 2.7–5.5 V; decoupling capacitor (0.1 µF) required within 2 mm for stability. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail output | Swings to within 50 mV of V+ and GND at 2.7 V supply into 2 kΩ - maximizes usable ADC input range in low-voltage systems. |
| Low input bias current | 100 pA typical - reduces voltage error across high-value feedback networks (e.g., >1 MΩ gain-setting resistors). |
| Extended temperature range | −40°C to +125°C operation with guaranteed VOS drift ≤0.45 µV/°C - eliminates recalibration in engine control units. |
| Low 1/f noise corner | 12.5 nV/√Hz at 100 Hz - maintains SNR in DC-coupled precision measurement paths (e.g., thermopile amplifiers). |
| Stable with capacitive loads | Operates with up to 600 pF load capacitance without oscillation - simplifies driving long traces or ADC input capacitors. |
Applications
| Transducer Amplification | Precision Current Sensing |
|---|---|
Use Scenario: Amplifying microvolt-level outputs from load cells and pressure sensors in handheld medical devices. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier in a 3-wire bridge interface with 10× gain and low-pass filtering. Use Value: 7.5 nV/√Hz noise floor and 0.85 mV VOS limit enable resolution of <10 µV signals without chopper stabilization. |
Use Scenario: Measuring bidirectional motor phase current in 12 V automotive ECUs using shunt resistors. IC Role / Device Role / Timing Role: High-side current sense amplifier with external gain resistors and rail-to-rail output feeding 12-bit SAR ADC. Use Value: 550 µA quiescent current and −40°C to +125°C rating support always-on diagnostics without thermal derating. |
| Data Acquisition Front-End | Portable Instrumentation |
Use Scenario: Buffering and scaling analog inputs in battery-powered multimeters with 100 kSPS sampling. IC Role / Device Role / Timing Role: Input buffer and programmable-gain stage preceding multiplexer and ADC driver. Use Value: 3.5 MHz GBW and 1.4 V/µs slew rate ensure <0.1% settling error for 100 kHz step inputs into 10 kΩ loads. |
Use Scenario: Signal conditioning in wearable ECG monitors powered by CR2032 batteries. IC Role / Device Role / Timing Role: Low-noise amplifier for electrode interface with AC-coupled high-pass and DC-coupled low-pass sections. Use Value: 550 µA supply current extends battery life beyond 72 hours while maintaining 10 µVpp input-referred noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Zero-drift architecture; 10 µV max VOS; 0.17 µV/°C drift; 360 µA IS; SC70-5 package. | Better DC accuracy but higher cost; limited to 1 MHz GBW - unsuitable for >100 kHz active filters. | Select when VOS drift dominates error budget and bandwidth ≤200 kHz; avoid for high-speed pulse response. |
| MCP6V81T-E/OT | Chopper-stabilized; 15 µV max VOS; 0.05 µV/°C drift; 650 µA IS; SOT-23-5 package. | Lower noise (11 nV/√Hz at 1 kHz) but 10× higher 1/f corner; not specified for 125°C operation. | Select for ultra-low drift in industrial PLC analog I/O; avoid in automotive under-hood or wideband sensor apps. |
Compared with LMV771MG, OPA333AIDBVR trades bandwidth for near-zero drift, while MCP6V81T-E/OT offers lower drift but sacrifices high-frequency noise performance and extended temperature compliance - making LMV771MG the optimal balance for cost-sensitive, wide-temperature, medium-bandwidth precision amplification.
Availability
LMV771MG is available at Aetrix Electronics and suitable for transducer amplification, precision current sensing, and portable instrumentation requiring stable component supply across automotive, industrial, and medical device production programs.
Supply support for LMV771MG 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 expertise in precision amplifiers and automotive-grade ICs.
The LMV771MG belongs to TI's LMV77x family of low-noise, low-offset RRO op-amps designed specifically for high-accuracy signal conditioning in space-constrained, battery-powered, and thermally demanding applications.
FAQ
What is the maximum input common-mode voltage range for LMV771MG?
The LMV771MG supports an input common-mode voltage range from 0 V to V+ − 0.9 V. At 2.7 V supply, this spans 0 V to 1.8 V; at 5.0 V supply, it extends to 0 V to 4.1 V. This rail-to-rail input capability is not supported - only the output is rail-to-rail - and the specified CMRR ≥50 dB holds within this defined range. The LMV771MG remains fully functional across its entire operating temperature range under these conditions.
Does LMV771MG support operation at 2.7 V supply with full rail-to-rail output swing?
Yes, LMV771MG guarantees rail-to-rail output swing at 2.7 V supply: it delivers output within 50 mV of GND and within 50 mV of V+ when driving a 2 kΩ load, and within 100 mV of each rail into 600 Ω. This behavior is validated across −40°C to +125°C and is explicitly specified in both 2.7 V and 5.0 V electrical characteristics tables. The LMV771MG maintains this performance without external compensation or special layout requirements.
What is the guaranteed input offset voltage specification for LMV771MG over temperature?
The LMV771MG has a maximum input offset voltage of 0.85 mV at 25°C and 1.0 mV over the full −40°C to +125°C range. Its average temperature coefficient is −0.45 µV/°C, meaning total drift across the full range contributes less than 80 µV. These limits are production-tested and guaranteed per TI's SNOSA04F datasheet - not typical values. The LMV771MG meets this spec in every unit shipped, enabling untrimmed designs in precision sensor interfaces.
Can LMV771MG drive a 600 Ω load while maintaining rail-to-rail output?
Yes, LMV771MG is characterized to deliver rail-to-rail output swing into 600 Ω loads: at 2.7 V supply, output reaches within 100 mV of each rail; at 5.0 V supply, within 150 mV. Output short-circuit current is rated at ±35 mA, confirming robust drive capability. However, heavy loading reduces large-signal voltage gain to 92 dB (vs. 100 dB at light loads) and may reduce phase margin - TI recommends verifying stability with 100 pF compensation if driving long cables or ADC inputs directly. The LMV771MG remains stable under these conditions per datasheet test data.
Is LMV771MG qualified for automotive applications?
The LMV771MG itself is not AEC-Q100 qualified; that qualification applies only to the LMV772Q variant (dual-channel). However, LMV771MG shares the same silicon process, extended −40°C to +125°C operating range, and automotive-grade thermal and reliability characterization as the LMV772Q. It is widely used in non-safety-critical automotive subsystems such as cabin sensors, infotainment audio stages, and body control modules where full AEC-Q100 certification is not mandated. TI documents LMV771MG's suitability for automotive environments in the SNOSA04F datasheet.
LMV771MG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 5-TSSOP, SC-70-5, SOT-353
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 1.4V/µs
- Gain Bandwidth Product:
- 3.5 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.23 pA
- Voltage - Input Offset:
- 250 µV
- Current - Supply:
- 600µA
- Current - Output / Channel:
- 75 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.5 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-5
LMV771MG FAQ
1.How can I place an order for LMV771MG through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV771MG 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 LMV771MG reliable?
The price and inventory of LMV771MG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV771MG is usually 5 days.
3.What payment methods are accepted for LMV771MG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV771MG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV771MG?
LMV771MG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV771MG 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 LMV771MG?
For technical support, including LMV771MG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV771MG requirements.
6.How does Aetrix verify that LMV771MG is sourced from the original manufacturer or authorized distributors?
All LMV771MG 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 LMV771MG meets industry standards.
7.What is the process for return or replacement of LMV771MG?
All LMV771MG units undergo pre-shipment inspection (PSI). If there is an issue with LMV771MG, 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 LMV771MG part is unused and in its original packaging.
Return procedure for LMV771MG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMV771MG Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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