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Texas Instruments LMP2011MA/NOPB
- Part No.:
- LMP2011MA/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP2011MA/NOPB.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,745
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Product details
Overview
LMP2011MA/NOPB from Texas Instruments is a single-channel, high-precision rail-to-rail output operational amplifier designed for low-drift, low-noise signal conditioning in precision instrumentation. 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 of microvolt-level sensor signals in thermocouple or strain gauge bridge interfaces operating from 2.7 V to 5 V supplies.
For engineers reviewing the LMP2011MA/NOPB datasheet, LMP2011MA/NOPB pinout, LMP2011MA/NOPB application, or LMP2011MA/NOPB equivalent, key selection criteria include guaranteed low VOS drift (0.015 µV/°C), absence of external compensation capacitors, copper leadframe for minimized thermal EMF, and fast overload recovery (≤50 ms) critical for ADC buffer and transducer front-end designs.
Technical Context
The LMP2011MA/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 DC stability. Its input stage uses a copper leadframe to cancel thermocouple voltages at PCB solder joints, reducing thermal drift contributions below 0.0014 °C ΔT.
This amplifier operates with rail-to-rail output swing (within 30 mV of rails at 5 V), achieves 130 dB open-loop gain and 120 dB PSRR, and supports stable operation with capacitive loads up to 500 pF - making it suitable for driving multiplexed ADC inputs and precision I-V conversion circuits without phase-margin degradation.
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 sensor buffers at full temperature range. |
| Offset Drift | 0.015 µV/°C - enables sub-µV drift over 100°C ambient shift, critical for uncalibrated long-term measurements. |
| Voltage Noise | 35 nV/√Hz flat spectrum (no 1/f corner) - eliminates low-frequency measurement corruption in DC-coupled systems. |
| Gain-Bandwidth Product | 3 MHz - supports stable closed-loop gains up to ~300 at 10 kHz for anti-aliasing filter integration. |
| Slew Rate | 4 V/µs - allows full-scale step response within 1.25 µs for 5 V output swing, minimizing settling time in data acquisition. |
| Supply Current | 930 µA typical per channel - enables precision performance in battery-powered instrumentation with <1 mW dissipation at 5 V. |
| Output Swing | Rail-to-rail, within 30 mV of rails (5 V supply) - maximizes dynamic range into 10 kΩ loads without headroom loss. |
| CMRR / PSRR | 130 dB / 120 dB - rejects >10⁶× common-mode or supply ripple, essential for single-supply bridge amplifiers. |
Pinout & Package
SOT-23-5 package (2.90 mm × 1.60 mm body size) with exposed pad for thermal enhancement; compatible with standard pick-and-place and reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V+ | Positive power supply | Connects to 2.7–5.25 V supply; decoupling capacitor required within 1 cm for stability. |
| V− | Negative power supply | Ground reference for single-supply operation; low-impedance return path essential for PSRR. |
| +IN | Non-inverting input | High-impedance node (≥9 MΩ); avoid series resistance >1 kΩ to prevent offset increase from pulsating input current. |
| −IN | Inverting input | Differential input pair node; auto-zero action causes 35 kHz pulsed current - match trace lengths to minimize EMI coupling. |
| OUT | Amplifier output | Capable of sourcing/sinking ≥8 mA; stable with ≤500 pF load capacitance without external compensation. |
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 precision DC measurements. |
| Copper leadframe construction | Eliminates thermocouple EMF between IC leads and copper PCB traces - reduces thermal offset drift to <0.0014 °C-equivalent error. |
| Auto-zero architecture | Continuous offset correction at 35 kHz without chopper mixing products - achieves 0.02% THD+N vs. >1% in legacy chopper amps. |
| No external capacitors required | Internal compensation enables stable unity-gain operation without external phase-compensation networks - simplifies layout and improves reliability. |
| Rail-to-rail output | Swings to within 30 mV of supply rails at 5 V - preserves >99% of available dynamic range for 12-bit+ ADC interfacing. |
| Fast overload recovery | ≤50 ms recovery from 2× full-scale overdrive - enables robust operation with multiplexed sensor arrays and transient-prone industrial inputs. |
Applications
| Thermocouple Amplifier | Strain Gauge Bridge Amplifier |
|---|---|
Use Scenario: Amplifying µV-level Seebeck voltage from Type-K thermocouples across −40°C to +125°C ambient range, with cold-junction compensation. IC Role / Device Role / Timing Role: Primary DC-coupled instrumentation amplifier stage with ultra-low VOS drift and no 1/f noise to preserve measurement integrity over hours-long integrations. Use Value: Enables ±0.1°C accuracy without periodic recalibration, leveraging 0.015 µV/°C drift and 60 µV max VOS to limit thermal EMF contribution. | Use Scenario: Conditioning differential output from 350 Ω Wheatstone bridge under mechanical stress in structural health monitoring systems. IC Role / Device Role / Timing Role: Precision gain stage with rail-to-rail output driving 16-bit SAR ADC, rejecting bridge common-mode voltage shifts up to 130 dB. Use Value: Delivers 16-bit effective resolution by suppressing 1/f noise and maintaining CMRR >100 dB at 10 Hz - critical for sub-microstrain detection. |
| Precision ADC Driver | Transducer Signal Conditioning |
Use Scenario: Buffering and level-shifting sensor outputs into successive-approximation register (SAR) ADCs with switched-capacitor inputs. IC Role / Device Role / Timing Role: High-speed, low-distortion driver with 4 V/µs slew rate and 50 ms overload recovery to settle before ADC sampling aperture. Use Value: Ensures <0.5 LSB error in 16-bit conversions by recovering from multiplexer-induced transients within 1 µs of acquisition window start. | Use Scenario: Signal conditioning for piezoresistive pressure sensors in medical infusion pumps requiring FDA-grade accuracy and long-term stability. IC Role / Device Role / Timing Role: Low-power, high-PSRR front-end amplifier operating from 3.3 V supply, rejecting motor drive noise coupled onto shared power rails. Use Value: Maintains 120 dB PSRR at 100 kHz to suppress switching regulator ripple, enabling <0.01% FS accuracy over 5-year field life. |
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 |
|---|---|---|---|
| OPA2189IDR | Zero-drift architecture with 5.5 µV max VOS, lower 5.6 nV/√Hz noise, but requires external 100 pF compensation capacitor for unity-gain stability. | Better noise performance suits higher-bandwidth sensor interfaces (>100 kHz), but added capacitor increases board area and leakage sensitivity. | Select OPA2189IDR when bandwidth >5 MHz and noise <10 nV/√Hz are mandatory; accept layout complexity for improved AC specs. |
| AD8629ARZ | Chopper-stabilized design with 1 µV max VOS and 0.01 µV/°C drift, but exhibits 1/f noise corner at 0.1 Hz and 200 ms overload recovery. | Superior DC accuracy benefits ultra-low-drift calibration standards, but slower recovery limits use in multiplexed data loggers. | Choose AD8629ARZ for metrology-grade zero-drift requirements where speed is secondary; avoid in dynamic sensor array applications. |
Compared with OPA2189IDR and AD8629ARZ, the LMP2011MA/NOPB uniquely balances sub-60 µV VOS, 35 nV/√Hz flat noise, and 50 ms overload recovery in a capacitor-free SOT-23 package - making it optimal for space-constrained, battery-powered instrumentation needing both DC precision and transient robustness.
Availability
LMP2011MA/NOPB is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, thermocouple amplifiers, strain gauge bridge amplifiers, ADC drivers, and transducer signal conditioning requiring stable component supply across industrial, medical, and test equipment programs.
Supply support for LMP2011MA/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 company delivering analog and embedded processing solutions, with leadership in precision analog signal chain components since 1930.
The LMP2011MA/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for ultra-stable, low-drift DC signal conditioning in space-constrained industrial and medical instrumentation where long-term calibration stability is non-negotiable.
FAQ
What is the maximum input offset voltage specification for LMP2011MA/NOPB over temperature?
The LMP2011MA/NOPB has a maximum input offset voltage of 60 µV across the full operating temperature range of −40°C to +125°C. This guaranteed limit is ensured via statistical quality control testing and applies to all production units, making LMP2011MA/NOPB suitable for applications requiring uncalibrated precision without trimming. The typical VOS at 25°C is just 0.12 µV under 5 V supply conditions.
Does LMP2011MA/NOPB require external compensation capacitors for stability?
No, the LMP2011MA/NOPB does not require external capacitors for stability. Its internal compensation network enables unity-gain stable operation with no external components - eliminating errors from capacitor dielectric absorption and leakage currents. This feature simplifies PCB layout and improves long-term reliability in precision measurement systems using the LMP2011MA/NOPB.
How does the auto-zero architecture of LMP2011MA/NOPB differ from traditional chopper-stabilized op amps?
The LMP2011MA/NOPB uses patented auto-zero techniques that correct input offset without generating chopper mixing products. Unlike chopper amplifiers (e.g., MAX432), which produce large distortion harmonics near the chopping frequency, the LMP2011MA/NOPB exhibits clean spectral behavior with only a 30 kHz correction tone - resulting in 0.02% THD+N versus >1% in comparable chopper devices.
What is the overload recovery time of LMP2011MA/NOPB, and why is it important?
The LMP2011MA/NOPB recovers from input overload in ≤50 ms - significantly faster than typical chopper-stabilized amplifiers (250 ms to seconds). This rapid recovery is critical when interfacing with multiplexed sensor arrays or ADCs that inject transient currents into the amplifier output, ensuring signal integrity during high-speed data acquisition cycles using the LMP2011MA/NOPB.
Is LMP2011MA/NOPB suitable for single-supply operation with rail-to-rail input capability?
The LMP2011MA/NOPB supports rail-to-rail *output* swing (within 30 mV of rails), but its input common-mode range extends only to (V−) −0.3 V and (V+) +0.3 V - meaning it is not a true rail-to-rail *input* amplifier. For single-supply use, ensure input signals remain ≥0.3 V above ground (V−) and ≤0.3 V below V+ to maintain specified CMRR and VOS performance in designs using the LMP2011MA/NOPB.
LMP2011MA/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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:
- 8-SOIC
LMP2011MA/NOPB FAQ
1.How can I place an order for LMP2011MA/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2011MA/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 LMP2011MA/NOPB reliable?
The price and inventory of LMP2011MA/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2011MA/NOPB is usually 5 days.
3.What payment methods are accepted for LMP2011MA/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2011MA/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2011MA/NOPB?
LMP2011MA/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2011MA/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 LMP2011MA/NOPB?
For technical support, including LMP2011MA/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2011MA/NOPB requirements.
6.How does Aetrix verify that LMP2011MA/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP2011MA/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 LMP2011MA/NOPB meets industry standards.
7.What is the process for return or replacement of LMP2011MA/NOPB?
All LMP2011MA/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP2011MA/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 LMP2011MA/NOPB part is unused and in its original packaging.
Return procedure for LMP2011MA/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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