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Texas Instruments LMP2012MM
- Part No.:
- LMP2012MM
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
LMP2012MM.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,117
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Product details
Overview
LMP2012MM from Texas Instruments is a dual high-precision rail-to-rail output operational amplifier designed for low-drift, low-noise signal conditioning in precision analog front-ends. It delivers 60 µV max input offset voltage, 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 industrial instrumentation and data acquisition systems.
For engineers reviewing the LMP2012MM datasheet, LMP2012MM pinout, LMP2012MM application, or LMP2012MM equivalent, key selection criteria include guaranteed VOS over temperature, absence of 1/f noise, rail-to-rail output swing within 30 mV of rails, auto-zero architecture for long-term stability, and compatibility with 2.7–5.25 V single-supply operation.
Technical Context
The LMP2012MM employs patented auto-zero architecture that continuously measures and corrects input offset voltage without chopper-induced mixing artifacts. Its input stage eliminates 1/f noise by design, delivering flat spectral noise density down to 0.1 Hz.
This dual-channel op amp operates from 2.7 V to 5.25 V, supports rail-to-rail output swing (within 30 mV of supply rails at 2 kΩ load), and achieves 4 V/µs slew rate with 130 dB open-loop gain - making it suitable for high-gain DC-coupled configurations where drift and low-frequency noise must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 60 µV over −40°C to +125°C - ensures minimal DC error in precision gain stages without trimming. |
| Input Voltage Noise | 35 nV/√Hz (flat, no 1/f) - enables stable sub-microvolt measurements without low-frequency drift corruption. |
| CMRR | 130 dB (typ) - rejects common-mode interference in bridge sensor and thermocouple amplifier circuits. |
| Gain-Bandwidth Product | 3 MHz - supports stable unity-gain and moderate-gain (e.g., ×10–×100) configurations up to ~300 kHz. |
| Rail-to-Rail Output Swing | Within 30 mV of V+ and V− at 2 kΩ load - maximizes dynamic range in single-supply 3.3 V or 5 V systems. |
| Supply Current per Channel | 930 µA (typ) at 5 V - enables low-power precision amplification in battery-operated or thermally constrained designs. |
| PSRR | 120 dB (typ) - maintains accuracy under noisy or poorly regulated supply conditions. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm lead pitch, exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - OUT A | Output, Channel A | Amplified output signal for first op amp channel; rail-to-rail capable, drives ≥2 kΩ loads. |
| 2 - –IN A | Inverting Input, Channel A | Differential input node for Channel A; auto-zero correction applied internally to minimize VOS drift. |
| 3 - +IN A | Non-Inverting Input, Channel A | Differential input node for Channel A; picoamp-level input bias current (−3 pA typ) minimizes resistor-induced errors. |
| 4 - V− | Negative Supply | Lowest potential power rail; referenced to ground in single-supply operation (e.g., 0 V at 5 V system). |
| 5 - +IN B | Non-Inverting Input, Channel B | Differential input node for second op amp channel; independent of Channel A, supports dual-sensor interfaces. |
| 6 - –IN B | Inverting Input, Channel B | Differential input node for Channel B; matched performance to Channel A for consistent dual-channel behavior. |
| 7 - OUT B | Output, Channel B | Amplified output signal for second op amp channel; identical AC/DC specs to OUT A. |
| 8 - V+ | Positive Supply | Highest potential power rail; supports 2.7–5.25 V operation; PSRR of 120 dB suppresses supply ripple. |
Key Features
| Feature | Design Value |
|---|---|
| No 1/f voltage noise | Flat 35 nV/√Hz spectral density from 0.1 Hz - eliminates low-frequency drift in DC-coupled precision measurement. |
| Auto-zero offset correction | Continuous internal calibration eliminates aging and thermal drift; lifetime VOS drift ≤2.5 µV. |
| Rail-to-rail output | Swings to within 30 mV of V+ and V− - preserves full signal headroom in low-voltage single-supply systems. |
| No external capacitors required | Internally compensated for unity-gain stability - avoids dielectric absorption and leakage errors from external caps. |
| Copper leadframe | Eliminates thermocouple EMF at PCB solder joints - prevents µV-level thermal offset errors in precision layouts. |
Applications
| Precision Thermocouple Amplifier | Strain Gauge Bridge Amplifier |
|---|---|
|
Use Scenario: Amplifying µV-level thermoelectric voltages from Type-K/J thermocouples across −40°C to +125°C ambient. IC Role / Device Role / Timing Role: Primary DC-coupled instrumentation amplifier stage with cold-junction compensation interface. Use Value: 60 µV max VOS and 0.015 µV/°C TCVOS ensure <±0.3°C measurement uncertainty without calibration; no 1/f noise prevents integration-time-dependent drift. |
Use Scenario: Conditioning mV-level differential outputs from 350 Ω or 1 kΩ Wheatstone bridge strain gauges in load cells and pressure sensors. IC Role / Device Role / Timing Role: First-stage differential-to-single-ended converter with programmable gain and offset nulling. Use Value: 130 dB CMRR rejects bridge excitation noise; rail-to-rail output maximizes ADC input range; copper leadframe eliminates thermal EMF errors at solder joints. |
| High-Resolution ADC Driver | Low-Drift DAC Output Buffer |
|
Use Scenario: Driving SAR or delta-sigma ADC inputs (e.g., ADS1262) requiring <1 LSB error at 24-bit resolution. IC Role / Device Role / Timing Role: Precision buffer isolating DAC or sensor from ADC input capacitance and switching transients. Use Value: 4 V/µs slew rate and 3 MHz GBW settle 24-bit codes in <1 µs; 35 nV/√Hz noise contributes <0.5 LSB RMS noise at 100 kSPS. |
Use Scenario: Buffering voltage-output DACs (e.g., DAC8562) in closed-loop control systems requiring long-term setpoint stability. IC Role / Device Role / Timing Role: Low-drift, low-noise unity-gain follower maintaining DAC output accuracy over temperature and time. Use Value: 2.5 µV lifetime VOS drift ensures <0.01% FSR error over 10 years; 930 µA supply current enables low-power active filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual high-precision op amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189IDR | Zero-drift architecture with 5.2 µV max VOS (−40°C to +125°C), 5.2 nV/√Hz noise, 2 MHz GBW, 800 µA/ch supply current. | Lower noise and VOS but reduced bandwidth; better for ultra-low-noise µV-level measurements below 100 kHz. | Select OPA2189IDR when sub-5 µV VOS and <6 nV/√Hz noise are mandatory; accept 30% lower bandwidth and higher cost. |
| AD8629ARZ-REEL7 | Zero-drift dual op amp with 25 µV max VOS (−40°C to +125°C), 45 nV/√Hz noise, 2.5 MHz GBW, 1.2 mA/ch supply current. | Slightly higher noise and VOS than LMP2012MM, but superior PSRR (140 dB) and wider supply range (2.7–36 V). | Select AD8629ARZ-REEL7 for high-PSRR requirements in industrial PLC I/O modules or when operating above 5.25 V. |
Compared with OPA2189IDR and AD8629ARZ-REEL7, the LMP2012MM offers the best balance of guaranteed 60 µV VOS, flat 35 nV/√Hz noise, 3 MHz bandwidth, and 930 µA supply current in VSSOP-8 - making it optimal for cost-sensitive, space-constrained 3.3 V/5 V precision sensor interfaces where 1/f noise elimination is critical.
Availability
LMP2012MM is available at Aetrix Electronics and suitable for precision instrumentation amplifiers, thermocouple signal conditioning, strain gauge bridge interfaces, high-resolution ADC drivers, and low-drift DAC output buffering requiring stable component supply across industrial temperature ranges.
Supply support for LMP2012MM 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 specializing in analog and embedded processing technologies, with leadership in precision analog ICs, power management, and signal chain solutions.
The LMP2012MM belongs to TI's LMP™ precision amplifier family, engineered specifically for ultra-stable, low-drift, low-noise signal conditioning in industrial, test & measurement, and medical sensor systems operating from 2.7 V to 5.25 V.
FAQ
What is the maximum guaranteed input offset voltage for LMP2012MM over temperature?
The LMP2012MM has a maximum input offset voltage of 60 µV across the full operating temperature range of −40°C to +125°C. This specification is production-tested and ensured per TI's statistical quality control methodology - critical for maintaining accuracy in uncalibrated precision sensor front-ends without trimming components.
Does LMP2012MM require external compensation capacitors?
No, the LMP2012MM is internally compensated for unity-gain stability and requires no external capacitors. This eliminates errors from capacitor dielectric absorption and leakage, enabling fast settling (<10 µs to 0.01%) and predictable behavior in high-impedance sensor interfaces - a key advantage over many competing zero-drift op amps.
What is the output voltage swing capability of LMP2012MM at 5 V supply?
At V+ = 5 V and V− = 0 V, the LMP2012MM delivers rail-to-rail output swing within 30 mV of each rail into a 2 kΩ load - i.e., 0.030 V to 4.970 V. This 4.94 V peak-to-peak dynamic range maximizes utilization of 24-bit ADCs and preserves signal fidelity in single-supply 5 V systems.
How does the auto-zero architecture of LMP2012MM differ from chopper-stabilized op amps?
The LMP2012MM uses patented auto-zero techniques that correct input offset without chopping the signal path - avoiding mixing products, harmonic distortion, and 1/f noise. Unlike chopper amplifiers (e.g., MAX432), it exhibits clean spectral content with only a benign 30 kHz correction artifact and 0.02% THD+N, making it suitable for wideband precision applications.
Is LMP2012MM compatible with standard VSSOP-8 PCB footprints?
Yes, the LMP2012MM in DGK package conforms to JEDEC MO-178AA standard for VSSOP-8: 3.00 mm × 3.00 mm body, 0.65 mm lead pitch, and 0.45 mm nominal lead thickness. Its footprint is pin-compatible with industry-standard VSSOP-8 layouts, enabling drop-in replacement in existing designs using TI's recommended thermal pad layout (TI SLMA003).
LMP2012MM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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-VSSOP
LMP2012MM FAQ
1.How can I place an order for LMP2012MM through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2012MM 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 LMP2012MM reliable?
The price and inventory of LMP2012MM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2012MM is usually 5 days.
3.What payment methods are accepted for LMP2012MM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2012MM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2012MM?
LMP2012MM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2012MM 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 LMP2012MM?
For technical support, including LMP2012MM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2012MM requirements.
6.How does Aetrix verify that LMP2012MM is sourced from the original manufacturer or authorized distributors?
All LMP2012MM 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 LMP2012MM meets industry standards.
7.What is the process for return or replacement of LMP2012MM?
All LMP2012MM units undergo pre-shipment inspection (PSI). If there is an issue with LMP2012MM, 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 LMP2012MM part is unused and in its original packaging.
Return procedure for LMP2012MM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMP2012MM Tags
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