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Texas Instruments LMP2011MFX
- Part No.:
- LMP2011MFX
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMP2011MFX.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,569
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Product details
Overview
LMP2011MFX from Texas Instruments is a single high-precision rail-to-rail output operational amplifier optimized for low-drift, low-noise DC-coupled signal conditioning. It delivers 60 µV max input offset voltage over temperature, 35 nV/√Hz input-referred voltage noise (no 1/f component), 130 dB CMRR, 120 dB PSRR, and 3 MHz gain-bandwidth product - enabling high-accuracy thermocouple amplification, strain gauge bridge interfaces, and precision ADC buffering in 2.7–5.25 V systems.
For engineers reviewing the LMP2011MFX datasheet, LMP2011MFX pinout, LMP2011MFX application, or LMP2011MFX equivalent, key selection criteria include guaranteed low VOS drift (0.015 µV/°C), ultra-low input bias current (−3 pA typical), rail-to-rail output swing within 30 mV of rails at 5 V, and auto-zero architecture eliminating chopper-induced mixing artifacts - critical for high-resolution data acquisition and sensor front-ends.
Technical Context
The LMP2011MFX employs patented auto-zero architecture that continuously measures and corrects input offset voltage without chopper modulation, avoiding 1/f noise and intermodulation distortion. Its input stage uses copper leadframe construction to suppress thermocouple EMF errors, and it operates with no external compensation capacitors.
This amplifier achieves stable closed-loop performance across 2.7–5.25 V supply range, supports −40°C to +125°C operation, and maintains 60° phase margin into 1 MΩ || <20 pF loads - enabling direct connection to high-impedance sensors and SAR ADC inputs without stability concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 60 µV max over −40°C to +125°C - ensures sub-0.01% gain error in 100× instrumentation amplifier configurations |
| Offset Drift | 0.015 µV/°C - enables stable µV-level measurements over wide ambient temperature swings |
| Voltage Noise | 35 nV/√Hz flat spectrum - eliminates low-frequency measurement corruption common in chopper amps |
| CMRR / PSRR | 130 dB / 120 dB - rejects >10⁶× common-mode and supply ripple in precision sensor interfaces |
| Gain-Bandwidth | 3 MHz - supports stable unity-gain buffer and ≥10× gain configurations up to ~300 kHz |
| Rail-to-Rail Output | Swings to within 30 mV of V+ and V− at 5 V - maximizes dynamic range when driving 12-bit+ ADCs |
| Supply Current | 930 µA typical - enables battery-powered precision sensing with multi-year runtime |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm), surface-mount, moisture-sensitive level 1. Pinout validated per TI SNOSA71L datasheet Figure 5 (DBV package).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply input | Accepts 2.7–5.25 V; decoupling capacitor required near pin for PSRR optimization |
| 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 differential); avoid series resistance >1 kΩ to prevent VOS increase |
| −IN | Inverting input | Differential pair input; pulsating pA-level currents at ~35 kHz due to auto-zero action |
| OUT | Amplifier output | Capable of sourcing/sinking ≥8 mA; drives 10 kΩ loads to rail within 30 mV at 5 V |
Key Features
| Feature | Design Value |
|---|---|
| No 1/f noise | Flat 35 nV/√Hz voltage noise down to 0.001 Hz - eliminates integration-time-dependent drift in DC measurements |
| Copper leadframe | Eliminates thermocouple EMF errors (<0.0014°C ΔT needed to generate 1 µV) - critical for µV-level thermal sensor accuracy |
| No external capacitors | Internal compensation enables immediate settling after power-up - avoids seconds-long dielectric absorption delays |
| Fast overload recovery | 40 ms recovery from 2× full-scale input overload - 6× faster than typical chopper-stabilized op amps |
| Rail-to-rail output | 30 mV headroom at 5 V supply - preserves >99% of ADC input range in single-supply 12-bit+ systems |
Applications
| Thermocouple Amplifier | Strain Gauge Bridge Amplifier |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltages from Type K thermocouples across −40°C to +125°C ambient. IC Role / Device Role / Timing Role: Primary DC-coupled gain stage with cold-junction compensation interface. Use Value: 60 µV max VOS and 0.015 µV/°C drift ensure <0.5°C absolute error without calibration; no 1/f noise prevents low-frequency drift during long integrations. | Use Scenario: Conditioning mV-level differential outputs from 350 Ω foil strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Instrumentation amplifier front-end with matched gain-setting resistors. Use Value: 130 dB CMRR rejects bridge excitation ripple; rail-to-rail output maximizes dynamic range into 16-bit sigma-delta ADCs. |
| Precision ADC Driver | Low-Power Sensor Signal Chain |
Use Scenario: Buffering and level-shifting sensor outputs before 12–16 bit SAR or sigma-delta ADCs. IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-Z sensor from ADC input capacitance. Use Value: 3 MHz GBW and 4 V/µs slew rate support fast settling (<1 µs to 0.1%) for 1 MSPS sampling; 930 µA supply current minimizes power overhead. | Use Scenario: Battery-powered environmental monitors measuring temperature, humidity, and gas concentration. IC Role / Device Role / Timing Role: Core analog front-end amplifier in ultra-low-power microcontroller-based nodes. Use Value: 930 µA quiescent current enables multi-year operation on coin cells; −40°C to +125°C rating supports industrial deployment. |
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 | Chopper-stabilized; 10 µV max VOS but exhibits 1/f noise and higher THD+N; 17 µA supply current | Better initial VOS but inferior low-frequency stability and higher power - unsuitable for µV-level DC measurements | Select only if lowest initial offset is prioritized over long-term drift and noise floor |
| ADA4522-1ARMZ | Zero-drift architecture; 2.5 µV max VOS, 5.6 nV/√Hz noise, 1.2 mA supply current, wider 4.5–55 V supply range | Higher precision and noise performance but 3× higher supply current and larger SOIC-8 footprint | Choose when sub-µV offset and wider supply range justify increased cost and power |
Compared with OPA333AIDBVR and ADA4522-1ARMZ, the LMP2011MFX provides optimal balance of ultra-low drift (0.015 µV/°C), flat-noise performance (35 nV/√Hz), and ultra-low quiescent current (930 µA) in the compact SOT-23-5 package - making it uniquely suited for battery-powered, high-accuracy sensor interfaces where long-term stability and low-frequency fidelity are critical.
Availability
LMP2011MFX is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, thermocouple amplifiers, strain gauge bridge amplifiers, and low-power sensor signal chains requiring stable component supply across industrial, test & measurement, and medical device programs.
Supply support for LMP2011MFX 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 designing analog ICs, embedded processors, and digital signal processors for industrial, automotive, and consumer applications.
The LMP2011MFX belongs to TI's LMP™ precision amplifier family, engineered specifically for ultra-stable, low-drift DC signal conditioning in space-constrained, low-power systems - targeting sensor front-ends, precision data acquisition, and high-resolution measurement equipment.
FAQ
What is the maximum operating temperature range for the LMP2011MFX?
The LMP2011MFX is specified for continuous operation from −40°C to +125°C ambient temperature. This extended range is validated per TI SNOSA71L datasheet Section 6.3 (Recommended Operating Conditions) and supports deployment in harsh industrial environments, automotive under-hood applications, and high-density PCBs with localized heating.
Does the LMP2011MFX require external compensation capacitors?
No, the LMP2011MFX does not require external compensation capacitors. Its internal auto-zero architecture and unity-gain stable design eliminate the need for external frequency compensation - removing sources of dielectric absorption error and simplifying layout. This is confirmed in TI SNOSA71L Section 1 (Features) and Section 7.3.3.
What is the typical supply current of the LMP2011MFX at 5 V?
The typical supply current of the LMP2011MFX is 930 µA at 5 V supply voltage and 25°C junction temperature, as specified in TI SNOSA71L Section 6.8 (5-V DC Electrical Characteristics). Maximum supply current is 1.50 mA across the full −40°C to +125°C temperature range.
How does the LMP2011MFX achieve low 1/f noise?
The LMP2011MFX eliminates 1/f noise through its patented auto-zero architecture, which continuously measures and corrects input offset without chopper modulation. Unlike chopper-stabilized amplifiers, this method avoids mixing products and preserves flat 35 nV/√Hz voltage noise down to 0.001 Hz - verified in TI SNOSA71L Section 7.3.2 and Figure 5.
What package type is used for the LMP2011MFX?
The LMP2011MFX uses the SOT-23-5 (DBV) package, measuring 2.90 mm × 1.60 mm with 0.95 mm height. This miniature surface-mount package is moisture-sensitivity level 1 and features a copper leadframe to minimize thermocouple EMF errors - detailed in TI SNOSA71L Section 2 (Device Information) and Figure 5.
LMP2011MFX 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
LMP2011MFX FAQ
1.How can I place an order for LMP2011MFX through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2011MFX 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 LMP2011MFX reliable?
The price and inventory of LMP2011MFX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2011MFX is usually 5 days.
3.What payment methods are accepted for LMP2011MFX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2011MFX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2011MFX?
LMP2011MFX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2011MFX 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 LMP2011MFX?
For technical support, including LMP2011MFX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2011MFX requirements.
6.How does Aetrix verify that LMP2011MFX is sourced from the original manufacturer or authorized distributors?
All LMP2011MFX 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 LMP2011MFX meets industry standards.
7.What is the process for return or replacement of LMP2011MFX?
All LMP2011MFX units undergo pre-shipment inspection (PSI). If there is an issue with LMP2011MFX, 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 LMP2011MFX part is unused and in its original packaging.
Return procedure for LMP2011MFX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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