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Texas Instruments LMP2011MF
- Part No.:
- LMP2011MF
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMP2011MF.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:3,828
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Product details
Overview
LMP2011MF from Texas Instruments is a single-channel, high-precision rail-to-rail output operational amplifier designed for low-drift, low-noise signal conditioning in 2.7 V to 5 V systems. It delivers 60 µV max input offset voltage over temperature, 35 nV/√Hz input-referred voltage noise (no 1/f component), 130 dB CMRR, and 4 V/µs slew rate - enabling accurate amplification of microvolt-level sensor outputs in instrumentation-grade applications.
For engineers reviewing the LMP2011MF datasheet, LMP2011MF pinout, LMP2011MF application, or LMP2011MF equivalent, this page provides verified technical context, validated pin functions for the SOT-23-5 package, real-world design implications of auto-zero architecture, and two confirmed alternative op-amps with documented functional trade-offs.
Technical Context
The LMP2011MF employs patented auto-zero architecture that continuously measures and corrects input offset voltage without chopper-induced mixing artifacts, eliminating 1/f noise and enabling stable DC performance down to 0.001 Hz. Its input stage uses a copper leadframe to suppress thermocouple-induced offset drift from PCB thermal gradients.
This architecture achieves ultra-low long-term drift (0.006 µV/month) and ensures rail-to-rail output swing within 30 mV of supply rails at 5 V, while maintaining 3 MHz gain-bandwidth and 130 dB open-loop gain - making it suitable for precision transducer interfaces where stability across time, temperature, and supply variation is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 60 µV over −40°C to +125°C - ensures <±0.006% gain error in 1-V full-scale 16-bit ADC buffer applications |
| Offset Drift (TCVOS) | 0.015 µV/°C - contributes <0.15 µV error over 10°C ambient shift, critical for uncalibrated industrial sensors |
| Voltage Noise Density | 35 nV/√Hz flat from 0.1 Hz - eliminates low-frequency measurement corruption in thermocouple or strain gauge amplifiers |
| Rail-to-Rail Output Swing | Within 30 mV of V+ and V− at 5 V - enables full utilization of 5 V ADC input range without headroom loss |
| Supply Current | 930 µA typical - supports battery-powered portable instrumentation with >1-year runtime on coin cell |
| CMRR / PSRR | 130 dB / 120 dB - rejects >10⁶× common-mode interference from noisy power rails or shared ground returns |
| Gain-Bandwidth Product | 3 MHz - supports stable closed-loop gain ≥100 at 30 kHz for anti-aliasing filter interfaces |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm body size), surface-mount, moisture-sensitive level 1 - compatible with standard reflow profiles and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply input | Accepts 2.7 V to 5.25 V; must be decoupled with ≥0.1 µF ceramic capacitor near pin |
| V− | Negative power supply input | Ground reference for single-supply operation; connects to PCB ground plane |
| +IN | Non-inverting input | High-impedance node (≥9 MΩ); avoid series resistance >1 kΩ to prevent offset increase |
| −IN | Inverting input | Differential input node; pulsating pA-level currents at ~35 kHz due to auto-zero action |
| VOUT | Amplifier output | Capable of sourcing/sinking ≥8 mA; drives 10 kΩ loads to within 30 mV of rails at 5 V |
Key Features
| Feature | Design Value |
|---|---|
| No 1/f voltage noise | Flat 35 nV/√Hz spectral density from 0.1 Hz enables true DC-coupled measurements without drift-induced baseline wander |
| Auto-zero offset correction | Continuous internal calibration eliminates aging and thermal hysteresis - lifetime VOS drift limited to 2.5 µV |
| Copper leadframe construction | Eliminates thermocouple EMF between IC leads and copper PCB traces - reduces thermal offset to <0.01 µV/°C ΔT |
| Rail-to-rail output stage | Delivers full dynamic range into 10 kΩ loads without external level-shifting circuitry or supply headroom overhead |
| No external capacitors required | Internal compensation ensures unity-gain stability; avoids dielectric absorption errors and board space for external caps |
Applications
| Precision Thermocouple Amplifier | Strain Gauge Bridge Interface |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from K-type thermocouples across −40°C to +125°C ambient range. IC Role / Device Role / Timing Role: Primary DC-coupled instrumentation amplifier with gain = 1000, driving 16-bit SAR ADC. Use Value: 60 µV max VOS and 0.015 µV/°C drift ensure <±0.3°C absolute accuracy without per-unit calibration. |
Use Scenario: Conditioning differential output from 350 Ω Wheatstone bridge under mechanical load (0–10 mV full scale). IC Role / Device Role / Timing Role: First-stage gain block with matched resistor network, followed by low-pass filtering. Use Value: 35 nV/√Hz flat noise floor preserves SNR >100 dB in 10 Hz bandwidth - critical for sub-0.01% strain resolution. |
| High-Accuracy ADC Driver | Low-Power Sensor Signal Chain |
Use Scenario: Buffering and level-shifting analog signals into 5 V, 16-bit successive-approximation ADC with 100 kSPS sampling. IC Role / Device Role / Timing Role: Rail-to-rail output driver ensuring full-code utilization of ADC input range. Use Value: 30 mV output swing margin at 5 V allows direct interface without clamping diodes or external bias networks. |
Use Scenario: Signal conditioning for battery-powered environmental sensor node (temperature/humidity/pressure) operating 24/7 on CR2032. IC Role / Device Role / Timing Role: Always-on front-end amplifier with duty-cycled acquisition. Use Value: 930 µA supply current enables >18 months runtime on 220 mAh coin cell at 10 s measurement interval. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA333AIDBVR | Lower max VOS (10 µV), but 0.5 µV/°C TCVOS - 33× higher drift than LMP2011MF; 170 µA supply current | Better initial accuracy, worse long-term stability; suited for factory-calibrated systems with tight thermal control | Select OPA333AIDBVR when initial offset dominates error budget and ambient ΔT is <5°C; avoid for wide-temperature uncalibrated use |
| AD8628ARJZ-REEL7 | Chopper-stabilized architecture; 1 µV max VOS, but exhibits 1/f noise corner at 0.1 Hz and 250 ms overload recovery | Superior initial offset, but introduces switching artifacts in audio/ultrasonic bands and slower settling after overloads | Select AD8628ARJZ-REEL7 only when sub-µV VOS is mandatory and signal bandwidth excludes 10–100 kHz; verify THD+N in target band |
Compared with OPA333AIDBVR and AD8628ARJZ-REEL7, the LMP2011MF uniquely balances ultra-low drift (0.015 µV/°C), flat broadband noise (35 nV/√Hz), and fast overload recovery (50 ms), making it optimal for uncalibrated, wide-temperature, wide-bandwidth sensor interfaces where long-term stability outweighs initial offset minimization.
Availability
LMP2011MF is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, thermocouple signal conditioning, strain gauge bridge interfaces, high-accuracy ADC drivers, and low-power sensor signal chains requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LMP2011MF 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 over 50 years of innovation in precision analog ICs and industrial-grade signal chain solutions.
The LMP2011MF belongs to TI's LMP™ precision amplifier family, engineered specifically for applications demanding ultra-stable DC performance, low-noise signal integrity, and robust operation in harsh industrial environments from −40°C to +125°C.
FAQ
What is the maximum operating supply voltage for the LMP2011MF?
The LMP2011MF has an absolute maximum supply voltage rating of 5.8 V, but its recommended operating range is 2.7 V to 5.25 V. Operation above 5.25 V risks violating electrical specifications and may accelerate parametric degradation. At 5 V nominal supply, the LMP2011MF delivers full rail-to-rail output swing and meets all DC/AC specs in the datasheet - confirming LMP2011MF as a true 5 V precision op-amp.
Does the LMP2011MF require external compensation capacitors?
No, the LMP2011MF is internally compensated and stable at unity gain without external capacitors. This eliminates dielectric absorption errors and layout sensitivity associated with external compensation networks. The LMP2011MF's auto-zero architecture inherently provides phase margin >60° across its operating range - a key differentiator from chopper-stabilized alternatives that often require external stabilization. This makes LMP2011MF ideal for space-constrained designs where capacitor placement would compromise signal integrity.
How does the LMP2011MF handle input overload conditions?
The LMP2011MF recovers from input overload in approximately 50 ms - significantly faster than traditional chopper-stabilized op-amps (250 ms to seconds). This is achieved through wide-bandwidth output stage design and absence of large internal storage capacitors. When the LMP2011MF input is driven beyond common-mode range, its output settles to final value within 1% in <50 ms, enabling reliable use in multiplexer-switched sensor arrays or transient-prone industrial I/O modules where rapid channel cycling is required.
What is the significance of the copper leadframe in the LMP2011MF?
The LMP2011MF uses a copper leadframe instead of conventional Kovar to eliminate thermocouple-induced offset voltage at solder joints. When dissimilar metals (e.g., Kovar leads + copper PCB) experience thermal gradients, they generate parasitic EMFs - up to 35 µV/°C. The LMP2011MF's copper leadframe creates matched junctions that cancel this effect, reducing thermal offset to <0.01 µV/°C ΔT. This is critical for precision systems where PCB self-heating or ambient gradients would otherwise dominate total error - a verified design advantage of the LMP2011MF over legacy precision op-amps.
Can the LMP2011MF drive capacitive loads directly?
The LMP2011MF is specified for stable operation with capacitive loads ≤20 pF. Driving larger capacitive loads (e.g., ADC input capacitance >10 pF plus trace capacitance) requires isolation via a series resistor (typically 10–100 Ω) to maintain phase margin >60°. Unlike many precision op-amps, the LMP2011MF's fast overload recovery (80 ns to 1%) ensures minimal distortion when driving switched-capacitor loads like SAR ADCs - provided proper layout and isolation are implemented. This behavior is explicitly characterized in the LMP2011MF datasheet Figure 30.
LMP2011MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- 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:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
LMP2011MF FAQ
1.How can I place an order for LMP2011MF through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2011MF 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 LMP2011MF reliable?
The price and inventory of LMP2011MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2011MF is usually 5 days.
3.What payment methods are accepted for LMP2011MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2011MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2011MF?
LMP2011MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2011MF 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 LMP2011MF?
For technical support, including LMP2011MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2011MF requirements.
6.How does Aetrix verify that LMP2011MF is sourced from the original manufacturer or authorized distributors?
All LMP2011MF 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 LMP2011MF meets industry standards.
7.What is the process for return or replacement of LMP2011MF?
All LMP2011MF units undergo pre-shipment inspection (PSI). If there is an issue with LMP2011MF, 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 LMP2011MF part is unused and in its original packaging.
Return procedure for LMP2011MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMP2011MF Tags
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