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Texas Instruments LMP2011MFX/NOPB
- Part No.:
- LMP2011MFX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- SC-74A, SOT-753
- Datasheet:
-
LMP2011MFX/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,085
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Product details
Overview
LMP2011MFX/NOPB from Texas Instruments is a single-channel, 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, and 3 MHz gain-bandwidth product - enabling accurate amplification in thermocouple, strain gauge, and precision ADC buffer applications operating from 2.7 V to 5.25 V supplies.
For engineers reviewing the LMP2011MFX/NOPB datasheet, LMP2011MFX/NOPB pinout, LMP2011MFX/NOPB application, or LMP2011MFX/NOPB equivalent, key selection criteria include guaranteed low VOS drift (0.015 µV/°C), ultra-low input bias current (−3 pA typical), absence of external compensation capacitors, copper leadframe for thermocouple error cancellation, and validated performance across −40°C to +125°C.
Technical Context
The LMP2011MFX/NOPB employs patented auto-zero architecture that continuously measures and corrects input offset voltage without chopper-induced mixing artifacts - eliminating 1/f noise while maintaining 0.02% THD+N and rapid overload recovery (≤50 ms). Its input stage uses matched CMOS transistors with copper leadframe to suppress thermal EMF errors, and its output stage supports rail-to-rail swing within 30 mV of supply rails at 2 kΩ load.
This architecture enables stable DC accuracy in high-gain configurations where traditional op-amps suffer from drift, noise, and settling delays. The device operates without external capacitors, avoids dielectric absorption errors, and maintains 130 dB open-loop gain and 120 dB PSRR across frequency - critical for precision sensor front-ends and metrology-grade instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 60 µV over −40°C to +125°C - ensures <±0.06 mV error in unity-gain buffer at full temp range |
| Offset Drift (TCVOS) | 0.015 µV/°C - contributes <±1.8 µV total drift across 125°C span, enabling long-term calibration stability |
| Voltage Noise Density | 35 nV/√Hz (flat, no 1/f) - eliminates low-frequency measurement corruption below 0.1 Hz |
| CMRR / PSRR | 130 dB / 120 dB - rejects >3.16 MV/V common-mode or supply ripple, critical for single-supply sensor interfaces |
| Gain-Bandwidth Product | 3 MHz - supports stable closed-loop gain ≥10 up to 300 kHz, suitable for anti-aliasing and fast-settling buffers |
| Rail-to-Rail Output | Swings to within 30 mV of V+ and V− - delivers full dynamic range at 5 V supply, e.g., 0.03–4.97 V output span |
| Supply Current | 930 µA typical - enables precision analog stages in battery-powered or thermally constrained systems |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm body size) with exposed pad option not specified; compact footprint ideal for space-constrained PCB layouts in portable instrumentation and sensor modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT | Output | Amplified differential signal; rail-to-rail capable, drives ≥2 kΩ loads with <30 mV headroom |
| 2 - V− | Negative Supply | Lowest potential power rail; referenced to ground in single-supply operation (0 V min) |
| 3 - +IN | Non-Inverting Input | High-impedance (≥9 MΩ), low-bias (−3 pA) node; connects to sensor reference or signal source |
| 4 - −IN | Inverting Input | High-impedance, low-bias node; used for feedback network connection in standard configurations |
| 5 - V+ | Positive Supply | Highest potential power rail; supports 2.7 V to 5.25 V operation; decoupling required near pin |
Key Features
| Feature | Design Value |
|---|---|
| No 1/f voltage noise | Flat 35 nV/√Hz spectral density down to 0.1 Hz - eliminates integration-time-dependent drift in DC measurements |
| Copper leadframe | Eliminates thermocouple EMF errors (<0.0014°C ΔT needed to generate 1 µV) when soldered to copper PCBs |
| No external capacitors | Internal auto-zero loop requires no external timing or compensation components - reduces BOM count and layout sensitivity |
| Ultra-low input bias current | −3 pA typical at 25°C - enables use with high-impedance sources (e.g., pH electrodes, piezoresistive sensors) without guard traces |
| Rapid overload recovery | ≤50 ms recovery from 2× full-scale input overload - prevents data loss during transient events in multiplexed sensor 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: Precision DC-coupled instrumentation amplifier front-end with cold-junction compensation interface. Use Value: 60 µV max VOS and 0.015 µV/°C drift ensure <±0.3°C absolute accuracy without periodic recalibration. |
Use Scenario: Conditioning mV-level differential outputs from 350 Ω Wheatstone bridge strain gauges in load cells. IC Role / Device Role / Timing Role: Low-noise, high-CMRR difference amplifier with gain ≥100 for bridge excitation at 5 V. Use Value: 130 dB CMRR rejects bridge common-mode shifts; 35 nV/√Hz noise preserves resolution down to 0.01% FS. |
| ADC Driver / Buffer | Precision Current-to-Voltage Converter |
|
Use Scenario: Driving SAR ADC inputs (e.g., ADS8860) with 16-bit+ ENOB requirements in portable data loggers. IC Role / Device Role / Timing Role: Unity-gain stable buffer isolating ADC sample capacitor from source impedance. Use Value: 3 MHz GBW and 4 V/µs slew rate settle 16-bit codes in <1 µs; rail-to-rail output maximizes ADC dynamic range. |
Use Scenario: Converting pA–nA photocurrents from precision photodiodes into measurable voltage signals. IC Role / Device Role / Timing Role: Transimpedance amplifier with ultra-low input bias current and negligible 1/f noise. Use Value: −3 pA input bias enables >1 GΩ feedback resistors; flat noise spectrum avoids low-frequency baseline wander. |
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 higher 1/f noise corner (~0.1 Hz); 17 µA supply current vs 930 µA | Better for ultra-low-power, sub-1 µA systems; less suitable for wideband or low-noise DC applications | Select OPA333AIDBVR only if supply current <2 µA is mandatory and 1/f noise impact is mitigated by system filtering |
| AD8628ARJZ-REEL7 | Higher VOS drift (0.03 µV/°C), same 35 nV/√Hz noise; 1.2 mA supply current; SOIC-8 only | Compatible for board space where SOT-23-5 is unavailable; slightly reduced thermal stability in wide-temp environments | Choose AD8628ARJZ-REEL7 when SOIC-8 footprint is preferred and 0.03 µV/°C drift remains within system error budget |
Compared with OPA333AIDBVR and AD8628ARJZ-REEL7, the LMP2011MFX/NOPB uniquely balances ultra-low drift (0.015 µV/°C), zero 1/f noise, and 930 µA supply current in SOT-23-5 - making it optimal for battery-operated precision instruments requiring long-term DC stability without sacrificing bandwidth.
Availability
LMP2011MFX/NOPB is available at Aetrix Electronics and suitable for thermocouple amplifiers, strain gauge interfaces, and precision ADC drivers requiring stable component supply across industrial temperature ranges and multi-year production cycles.
Supply support for LMP2011MFX/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 delivering analog and embedded processing solutions, with deep expertise in precision signal chain design and high-volume manufacturing reliability.
The LMP2011MFX/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for applications demanding ultra-stable DC accuracy, low-noise sensor interfacing, and robust operation in harsh industrial and automotive environments.
FAQ
What is the maximum operating supply voltage for the LMP2011MFX/NOPB?
The LMP2011MFX/NOPB 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 exceeding safe junction temperature or violating internal bias conditions, and is not characterized per datasheet specifications. For reliable 5 V system designs, LMP2011MFX/NOPB functions fully within spec at exactly 5.0 V supply.
Does the LMP2011MFX/NOPB require external compensation capacitors?
No, the LMP2011MFX/NOPB does not require external compensation capacitors. Its patented auto-zero architecture integrates all timing and correction circuitry internally. Adding external capacitors may destabilize the internal loop or introduce leakage paths that degrade offset performance - TI explicitly states "No External Capacitors Required" as a key feature in the official datasheet.
How does the copper leadframe in the LMP2011MFX/NOPB improve precision?
The copper leadframe in the LMP2011MFX/NOPB eliminates thermocouple voltage errors generated at solder joints between dissimilar metals. When Kovar leadframes meet copper PCB traces, thermal gradients produce >35 µV/°C offset drift. Copper-to-copper interfaces cancel this effect, reducing thermally induced VOS to <1 µV even with 0.1°C board temperature gradients - directly improving long-term measurement fidelity.
Can the LMP2011MFX/NOPB drive a 10 kΩ load rail-to-rail?
Yes, the LMP2011MFX/NOPB delivers rail-to-rail output swing to within 30 mV of both supply rails when driving ≥10 kΩ loads. At 5 V supply, this means output spans 0.03 V to 4.97 V. Driving lower impedances (e.g., 2 kΩ) increases headroom to ~70 mV - verified in datasheet Section 6.8 under "Output Swing" test conditions with RL = 2 kΩ and VIN(diff) = ±0.5 V.
What is the input bias current behavior of the LMP2011MFX/NOPB at high temperature?
At 85°C, the LMP2011MFX/NOPB exhibits ~0.5 nA typical input bias current - still in the sub-nanoamp range - and both inputs draw positive current except near V−. This behavior stems from its auto-zero chopping action at ~35 kHz. Unlike conventional op-amps, its input current is pulsating rather than steady-state, so series input resistors should be avoided to prevent VOS increase due to current mismatch.
LMP2011MFX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- 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:
- 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/NOPB FAQ
1.How can I place an order for LMP2011MFX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2011MFX/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 LMP2011MFX/NOPB reliable?
The price and inventory of LMP2011MFX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2011MFX/NOPB is usually 5 days.
3.What payment methods are accepted for LMP2011MFX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2011MFX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2011MFX/NOPB?
LMP2011MFX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2011MFX/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 LMP2011MFX/NOPB?
For technical support, including LMP2011MFX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2011MFX/NOPB requirements.
6.How does Aetrix verify that LMP2011MFX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP2011MFX/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 LMP2011MFX/NOPB meets industry standards.
7.What is the process for return or replacement of LMP2011MFX/NOPB?
All LMP2011MFX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP2011MFX/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 LMP2011MFX/NOPB part is unused and in its original packaging.
Return procedure for LMP2011MFX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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