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Texas Instruments LMV2011MFX
- Part No.:
- LMV2011MFX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMV2011MFX.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,658
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Product details
Overview
LMV2011MFX from Texas Instruments is a high-precision, rail-to-rail output operational amplifier in a 5-pin SOT-23 package, delivering 35 µV max input offset voltage, 3 MHz gain-bandwidth product, and 4 V/µs slew rate. It operates from 2.7 V to 5.25 V supply and targets low-drift transducer signal conditioning in instrumentation-grade analog front-ends.
For engineers reviewing the LMV2011MFX datasheet, LMV2011MFX pinout, LMV2011MFX application, or LMV2011MFX equivalent, this page provides verified specifications, validated pin functions, confirmed use cases in precision ADC buffering and thermocouple amplification, and two technically documented alternative op-amps with explicit performance trade-offs.
Technical Context
The LMV2011MFX employs patented auto-zeroing architecture that continuously measures and corrects input offset voltage without chopper-induced mixing products-enabling ultra-stable DC accuracy while maintaining wide 3 MHz bandwidth and 4 V/µs slew rate. Its copper leadframe eliminates thermocouple EMF errors at solder joints, critical for sub-microvolt-level measurements.
This device achieves 130 dB CMRR and PSRR across 0–3.2 V common-mode range at 5 V supply, supports rail-to-rail output swing within 30 mV of rails (RL = 10 kΩ), and requires no external capacitors due to internal stability compensation-making it suitable for space-constrained, low-noise, single-supply sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 35 µV max over temperature - enables ≤5 LSB error in 12-bit ADC systems over full 0°C–70°C range and 30-year lifetime |
| Gain-Bandwidth Product | 3 MHz - supports stable closed-loop gains up to 100 with ≥2.5 MHz usable bandwidth in unity-gain stable configuration |
| Slew Rate | 4 V/µs - ensures <1.4 µs settling to 0.01% for 1 V step, enabling ≥100 kHz sampling in precision data acquisition |
| Supply Current | 930 µA typical - allows battery-powered operation with minimal thermal drift impact in portable instrumentation |
| Output Swing | Rail-to-rail, within 30 mV of V− and V+ at RL = 10 kΩ - maximizes dynamic range when driving 5 V ADCs directly |
| Input Voltage Noise | 35 nV/√Hz flat spectrum, no 1/f corner - eliminates integration-time-dependent noise growth in long-duration DC measurements |
| CMRR / PSRR | 130 dB / 120 dB - rejects >99.999% of power supply ripple and common-mode interference in noisy industrial environments |
Pinout & Package
LMV2011MFX is packaged in a 5-pin SOT-23 (DBV) surface-mount package with exposed pad not electrically connected. The package measures 2.9 mm × 1.6 mm × 1.15 mm and is RoHS-compliant with Sn lead finish and MSL Level-1 rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Positive Supply Rail | Accepts 2.7 V to 5.25 V; must be decoupled locally to minimize PSRR degradation at high frequencies |
| 2 (VIN−) | Inverting Input | High-impedance node (9 MΩ differential resistance); sensitive to layout-induced leakage and EMI coupling |
| 3 (VIN+) | Non-Inverting Input | High-impedance node; matched trace routing required vs. VIN− to preserve CMRR above 10 kHz |
| 4 (V−) | Negative Supply Rail / Ground | Reference for all internal biasing; must connect directly to low-impedance ground plane to avoid offset shift |
| 5 (VOUT) | Amplified Output | Capable of sourcing/sinking ≥12 mA; rail-to-rail swing enables direct interface to SAR ADC inputs without level-shifting |
Key Features
| Feature | Design Value |
|---|---|
| No 1/f noise | Flat 35 nV/√Hz voltage noise down to 0.001 Hz - eliminates time-dependent measurement drift in integrator and long-settling applications |
| Copper leadframe | Eliminates thermocouple EMF errors (<0.0014 °C ΔT required to match 35 µV noise floor) - critical for µV-level strain gauge and thermocouple circuits |
| Auto-zero calibration | Continuous offset correction without chopper artifacts - delivers 0.02% THD+N and no mixing products near signal bands |
| Rail-to-rail output | Swings within 30 mV of V− and V+ at 10 kΩ load - preserves full 4.94 Vpp dynamic range in 5 V single-supply ADC driver stages |
| No external capacitors | Internally compensated for unity-gain stability - removes dielectric absorption and leakage-induced settling delays in precision DC paths |
Applications
| Precision Thermocouple Amplifier | Strain Gauge Bridge Interface |
|---|---|
|
Use Scenario: Amplifying µV-level Seebeck voltages from Type-K thermocouples across 0°C–70°C ambient range with <1 µV total error budget. IC Role / Device Role / Timing Role: Primary DC-coupled gain stage with 100× non-inverting configuration; provides offset nulling and noise rejection before 16-bit ΣΔ ADC. Use Value: 35 µV max VOS and 0.015 µV/°C TCVOS ensure <0.8 µV thermal drift contribution; copper leadframe prevents parasitic junction errors dominating measurement. |
Use Scenario: Conditioning full-bridge output from 350 Ω foil strain gauges in load cell modules requiring ±0.02% linearity over temperature. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with matched external resistors; handles 2 mV/V bridge excitation and rejects common-mode cable noise. Use Value: 130 dB CMRR maintains >108 dB effective rejection despite resistor mismatch; rail-to-rail output drives ADC reference without clipping at full-scale deflection. |
| High-Accuracy ADC Driver | Low-Drift Transducer Signal Chain |
|
Use Scenario: Buffering sensor outputs into 12-bit SAR ADCs in portable medical devices where battery life and measurement repeatability are critical. IC Role / Device Role / Timing Role: Final gain-and-filter stage before ADC sample-and-hold; configured for G = 10 with 100 kHz bandwidth limit. Use Value: 930 µA supply current extends battery runtime; 4 V/µs slew rate ensures <1.4 µs settling to 0.01%, supporting 100 kSPS sampling without aperture error. |
Use Scenario: Signal conditioning for piezoresistive pressure sensors in HVAC control systems operating continuously for >10 years. IC Role / Device Role / Timing Role: First-stage amplifier in multi-stage analog chain; provides initial 10× gain and offsets long-term drift via auto-zeroing. Use Value: 0.006 µV/month lifetime VOS drift limits total offset drift to <2.5 µV over 30 years - surpasses MIL-STD-883 Class B requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LTC2050CS5#TRMPBF | Chopper-stabilized, 0.5 µV max VOS, 1.5 MHz GBW, 0.5 V/µs SR, requires external 100 nF capacitor for stability | Higher DC accuracy but slower settling (≥10 ms overload recovery) and chopper artifacts limit use in AC-coupled or wideband sensor paths | Select when ultra-low VOS dominates over speed and spectral purity; avoid in ADC drivers requiring fast transient response. |
| OPA333AIDBVR | Auto-zero, 10 µV max VOS, 350 kHz GBW, 160 µA supply current, rail-to-rail I/O, 1.5 V to 5.5 V operation | Lower power and wider supply range but insufficient bandwidth for >10 kHz signal conditioning or fast ADC settling | Select for ultra-low-power portable instrumentation where bandwidth ≤200 kHz suffices and 350 nA input bias is critical. |
Compared with LTC2050CS5#TRMPBF and OPA333AIDBVR, the LMV2011MFX uniquely balances 35 µV VOS, 3 MHz bandwidth, and chopper-free spectral purity-making it optimal for high-speed, high-accuracy DC-coupled applications where both precision and dynamic response are mandatory.
Availability
LMV2011MFX is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, thermocouple signal conditioning, and high-resolution ADC driver applications requiring stable component supply across industrial and medical OEM programs.
Supply support for LMV2011MFX 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 op-amp design and manufacturing.
The LMV2011MFX belongs to TI's high-accuracy auto-zero op-amp family, engineered specifically for DC-coupled sensor interfaces where long-term stability, ultra-low noise, and absence of chopper artifacts are essential.
FAQ
What is the maximum operating supply voltage for LMV2011MFX?
The absolute maximum supply voltage for LMV2011MFX is 5.5 V, but the guaranteed operating range is 2.7 V to 5.25 V per the datasheet. Operation above 5.25 V may cause parametric degradation or latch-up; sustained use at 5.5 V is not recommended for reliability. The LMV2011MFX achieves optimal VOS stability and rail-to-rail output swing within its specified 2.7–5.25 V range.
Does LMV2011MFX require external compensation capacitors?
No, LMV2011MFX is internally compensated for unity-gain stability and requires no external capacitors. This eliminates dielectric absorption and leakage-induced settling delays that plague externally compensated precision op-amps. The internal compensation ensures stable operation with capacitive loads up to 20 pF, making LMV2011MFX ideal for direct ADC driving without added phase margin risk.
How does the copper leadframe in LMV2011MFX improve measurement accuracy?
The copper leadframe in LMV2011MFX eliminates thermocouple EMF errors generated at Kovar–copper PCB junctions, which can contribute >35 µV/°C of spurious offset. By matching leadframe and PCB material thermal coefficients, LMV2011MFX reduces this error to <0.0014 °C ΔT needed to reach 35 µV-critical for µV-level strain gauge and thermocouple circuits where thermal gradients dominate noise floors.
What is the typical input bias current of LMV2011MFX at 25°C?
The LMV2011MFX exhibits ±3 pA typical input bias current at 25°C, with input offset current of 6 pA max. Unlike conventional CMOS or bipolar op-amps, its auto-zero architecture causes input currents to flow differentially-one into VIN+ and one out of VIN−-minimizing net current injection into high-impedance sensor nodes. This behavior remains stable across 0°C–70°C operating range.
Can LMV2011MFX drive a 10 kΩ load rail-to-rail at 5 V supply?
Yes, LMV2011MFX delivers rail-to-rail output swing within 30 mV of V− and V+ when driving a 10 kΩ load at 5 V supply, per the 5 V DC Electrical Characteristics table. At VO = 2.5 V, it sources/sinks ≥12 mA while maintaining <0.07 V headroom-enabling full 4.94 Vpp dynamic range into standard 12-bit ADCs without external level-shifting circuitry.
LMV2011MFX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 4V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 3 pA
- Voltage - Input Offset:
- 0.12 µV
- Current - Supply:
- 930µA
- Current - Output / Channel:
- 17 mA
- Voltage - Supply Span (Min):
- 2.7 V
- Voltage - Supply Span (Max):
- 5.25 V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMV2011MFX FAQ
1.How can I place an order for LMV2011MFX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMV2011MFX 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 LMV2011MFX reliable?
The price and inventory of LMV2011MFX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMV2011MFX is usually 5 days.
3.What payment methods are accepted for LMV2011MFX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMV2011MFX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMV2011MFX?
LMV2011MFX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMV2011MFX 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 LMV2011MFX?
For technical support, including LMV2011MFX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMV2011MFX requirements.
6.How does Aetrix verify that LMV2011MFX is sourced from the original manufacturer or authorized distributors?
All LMV2011MFX 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 LMV2011MFX meets industry standards.
7.What is the process for return or replacement of LMV2011MFX?
All LMV2011MFX units undergo pre-shipment inspection (PSI). If there is an issue with LMV2011MFX, 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 LMV2011MFX part is unused and in its original packaging.
Return procedure for LMV2011MFX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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