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Texas Instruments LMP2014MTX/NOPB
- Part No.:
- LMP2014MTX/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LMP2014MTX/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,640
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Product details
Overview
LMP2014MTX/NOPB from Texas Instruments is a quad high-precision rail-to-rail output operational amplifier optimized for DC-coupled, low-drift signal conditioning. It delivers 30 µV typical input offset voltage, 35 nV/√Hz flat-band voltage noise (no 1/f), 130 dB CMRR, 120 dB PSRR, and 3 MHz gain-bandwidth product - enabling stable transducer amplification in precision instrumentation and ADC front-ends operating from 2.7 V to 5.25 V.
For engineers reviewing the LMP2014MTX/NOPB datasheet, LMP2014MTX/NOPB pinout, LMP2014MTX/NOPB application, or LMP2014MTX/NOPB equivalent, key selection criteria include ultra-low long-term VOS drift (0.006 µV/month), copper leadframe for thermocouple cancellation, no external capacitor requirement, and fast overload recovery (≤50 ms) - critical for high-resolution data acquisition and strain-gauge bridge interfaces.
Technical Context
The LMP2014MTX/NOPB employs patented auto-zeroing architecture that continuously measures and corrects input offset without chopper-induced mixing artifacts, delivering true 1/f-noise-free performance. Its input stage uses picoamp-level bias currents (±3 pA) and 9 MΩ differential resistance, while the output stage supports rail-to-rail swing within 30 mV of supply rails at 2 kΩ load.
Operating across 0°C to 70°C with supply voltages from 2.7 V to 5.25 V, the device maintains 130 dB open-loop gain and 60° phase margin into ≥1 MΩ loads. Its 4 V/µs slew rate and 3 MHz GBW support stable unity-gain and high-gain configurations without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage | 30 µV typical (max 60 µV) - enables ≤5 LSB error over 30-year life in 12-bit ADC front-ends at gain = 100 |
| Voltage Noise Density | 35 nV/√Hz (flat, no 1/f) - eliminates measurement drift in long-integration DC applications |
| CMRR / PSRR | 130 dB / 120 dB - rejects power supply ripple and common-mode interference in noisy industrial environments |
| Gain-Bandwidth Product | 3 MHz - supports stable closed-loop gains up to 100 with >200 kHz bandwidth |
| Rail-to-Rail Output | Swings to within 30 mV of rails at 2 kΩ - maximizes dynamic range in single-supply 5 V ADC systems |
| Supply Current per Channel | 1.2 mA typical - allows quad-channel precision amplification at <5 mA total quiescent current |
| Offset Drift | 0.015 µV/°C TCVOS and 0.006 µV/month long-term - ensures calibration stability in unattended monitoring systems |
Pinout & Package
TSSOP-14 (Package Code: PW), 5.0 mm × 4.4 mm body, 0.65 mm pitch, exposed pad not present. RoHS-compliant Sn lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 9, 13 | Inverting Input (−) | High-impedance picoamp-input node for each op-amp channel; sensitive to PCB leakage and thermocouple effects |
| 2, 6, 10, 14 | Non-Inverting Input (+) | Matched impedance path; copper leadframe minimizes thermal EMF vs. PCB copper traces |
| 3, 7, 11, 12 | Output | Rail-to-rail capable; drives ≥2 kΩ load to within 30 mV of supply rails; no external compensation required |
| 4 | V− (GND) | Ground reference for all four amplifiers; shared return path requires low-impedance layout |
| 8 | V+ | Positive supply input (2.7 V–5.25 V); decoupling capacitor recommended 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 error in precision DC measurements |
| Copper leadframe | Eliminates thermocouple EMF between IC leads and PCB copper - critical for sub-µV-level strain-gauge and thermocouple amplification |
| Auto-zero calibration time | ≤12 ms per cycle - enables rapid settling after power-up or input overdrive without external timing components |
| No external capacitors required | Internal compensation ensures stability with capacitive loads <20 pF - removes dielectric absorption errors and board-space overhead |
| Overload recovery time | ≤50 ms from ±2× full-scale output - 6× faster than typical chopper-stabilized op-amps, enabling high-throughput data acquisition |
Applications
| Precision Instrumentation Amplifier | Thermocouple Amplifier |
|---|---|
Use Scenario: High-gain (≥1000×), DC-coupled amplification of µV-level signals from K-type thermocouples in environmental monitoring systems. IC Role / Device Role / Timing Role: Primary signal-conditioning amplifier with cold-junction compensation interface; provides offset-stable gain before ADC sampling. Use Value: 0.015 µV/°C TCVOS and copper leadframe reduce thermal EMF-induced drift to <0.1 µV over 20°C ambient shift - enabling ±0.2°C accuracy without software calibration. | Use Scenario: Low-noise amplification of thermocouple outputs in furnace temperature controllers requiring 0.1°C resolution over 0–1000°C range. IC Role / Device Role / Timing Role: First-stage transducer amplifier driving ratiometric cold-junction sensor; operates continuously at 70°C ambient. Use Value: 0.006 µV/month lifetime drift and no 1/f noise ensure <1 µV baseline drift over 10 years - eliminating annual hardware recalibration. |
| Strain Gauge Bridge Amplifier | ADC Input Buffer |
Use Scenario: Wheatstone bridge excitation and differential amplification in load-cell interfaces for industrial weighing systems. IC Role / Device Role / Timing Role: Instrumentation-grade difference amplifier with matched resistor network; rejects bridge common-mode voltage. Use Value: 130 dB CMRR and 30 µV VOS enable >108 dB effective CMRR with 0.1% resistors - supporting 24-bit resolution in 1 mV/V bridge outputs. | Use Scenario: Driving SAR and delta-sigma ADC inputs in medical ECG and pressure-sensor front-ends with 12–16 bit resolution. IC Role / Device Role / Timing Role: Unity-gain buffer and anti-alias filter driver; settles to 0.01% in 1.4 µs for 100 kSPS sampling. Use Value: Rail-to-rail output swing and 35 nV/√Hz noise deliver full-scale SNR >92 dB - exceeding 16-bit ENOB requirements without dithering. |
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 5.2 µV max VOS, 5.2 nV/√Hz noise, but requires external 100 pF compensation capacitor | Better noise performance at higher frequencies; less suitable for ultra-low-frequency DC stability | Prefer OPA2189IDR when bandwidth >5 MHz and board space allows compensation cap |
| AD8629ARZ | Chopper-stabilized, 1 µV max VOS, but exhibits 1/f noise corner at 10 Hz and 250 ms overload recovery | Superior initial offset, but unsuitable for long-integration or fast-recovery applications | Choose AD8629ARZ only when sub-µV initial VOS outweighs 1/f noise and slow recovery penalties |
Compared with OPA2189IDR and AD8629ARZ, the LMP2014MTX/NOPB uniquely combines zero 1/f noise, <50 ms overload recovery, and no external capacitor requirement - making it optimal for unattended, long-duration DC measurements where calibration stability and signal integrity are non-negotiable.
Availability
LMP2014MTX/NOPB is available at Aetrix Electronics and suitable for precision instrumentation, industrial sensor interfaces, and medical data acquisition systems requiring stable component supply across extended production lifecycles.
Supply support for LMP2014MTX/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 specializing in analog and embedded processing technologies, with decades of heritage in precision op-amp design and manufacturing.
The LMP2014MTX/NOPB belongs to TI's LMP™ precision amplifier family, engineered specifically for applications demanding ultra-low drift, zero 1/f noise, and long-term calibration stability - such as laboratory instruments, weigh scales, and high-fidelity sensor signal chains.
FAQ
What is the maximum supply voltage for the LMP2014MTX/NOPB?
The LMP2014MTX/NOPB has an absolute maximum supply voltage rating of 5.8 V, but its specified operating range is 2.7 V to 5.25 V. Operation beyond 5.25 V may compromise parametric guarantees including offset voltage, CMRR, and PSRR - and is not recommended for production designs. The device achieves optimal noise and drift performance at 5 V nominal supply.
Does the LMP2014MTX/NOPB require external compensation capacitors?
No, the LMP2014MTX/NOPB does not require external compensation capacitors. Its internal auto-zero architecture and fully compensated design ensure stability with capacitive loads up to 20 pF and resistive loads down to 2 kΩ. Adding external capacitors may degrade phase margin and increase settling time - contrary to standard op-amp practice.
How does the copper leadframe in the LMP2014MTX/NOPB improve measurement accuracy?
The copper leadframe in the LMP2014MTX/NOPB eliminates thermocouple EMF between IC leads and copper PCB traces - a major source of µV-level offset drift in high-gain transducer circuits. Unlike Kovar-based packages generating >35 µV/°C, the LMP2014MTX/NOPB's matched copper junctions cancel thermal gradients, reducing thermally induced error to <0.1 µV over 20°C ambient shifts.
What is the typical input bias current of the LMP2014MTX/NOPB at 70°C?
At 70°C, the LMP2014MTX/NOPB exhibits typical input bias current of 0.5 nA - significantly higher than its 25°C value of ±3 pA. This increase occurs due to leakage in the input protection structure and must be accounted for in high-impedance sensor interfaces (e.g., pH electrodes). Layout best practices include guarding and minimizing trace length to mitigate leakage effects.
Can the LMP2014MTX/NOPB drive ADC inputs directly in single-supply 5 V systems?
Yes, the LMP2014MTX/NOPB can directly drive 5 V single-supply ADC inputs. Its rail-to-rail output swings to within 30 mV of both rails at 2 kΩ load, delivering full-scale voltage compliance for 12–16 bit converters. Combined with 35 nV/√Hz noise and 1.4 µs 0.01% settling time, it meets SNR and throughput requirements for SAR and delta-sigma ADCs without additional buffering.
LMP2014MTX/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 3V/µs
- Gain Bandwidth Product:
- 3 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 0.3 pA
- Voltage - Input Offset:
- 0.12 µV
- Current - Supply:
- 930µA (x4 Channels)
- 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:
- 14-TSSOP
LMP2014MTX/NOPB FAQ
1.How can I place an order for LMP2014MTX/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2014MTX/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 LMP2014MTX/NOPB reliable?
The price and inventory of LMP2014MTX/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2014MTX/NOPB is usually 5 days.
3.What payment methods are accepted for LMP2014MTX/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2014MTX/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2014MTX/NOPB?
LMP2014MTX/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2014MTX/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 LMP2014MTX/NOPB?
For technical support, including LMP2014MTX/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2014MTX/NOPB requirements.
6.How does Aetrix verify that LMP2014MTX/NOPB is sourced from the original manufacturer or authorized distributors?
All LMP2014MTX/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 LMP2014MTX/NOPB meets industry standards.
7.What is the process for return or replacement of LMP2014MTX/NOPB?
All LMP2014MTX/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LMP2014MTX/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 LMP2014MTX/NOPB part is unused and in its original packaging.
Return procedure for LMP2014MTX/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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