My Inquiry
My Account
Texas Instruments LMP2012MA
- Part No.:
- LMP2012MA
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LMP2012MA.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,601
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LMP2012MA from Texas Instruments is a dual 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), and 130 dB CMRR - enabling accurate amplification of microvolt-level sensor outputs such as thermocouples and strain gauges operating from 2.7 V to 5 V supplies.
For engineers reviewing the LMP2012MA datasheet, LMP2012MA pinout, LMP2012MA application, or LMP2012MA equivalent, this page provides verified specifications, dual-channel pin mapping, real-world use cases in bridge sensing and ADC buffering, and two validated alternative op-amps with documented performance trade-offs.
Technical Context
The LMP2012MA employs patented auto-zero architecture that continuously measures and corrects input offset voltage without chopper-induced mixing artifacts - eliminating 1/f noise while maintaining 3 MHz gain-bandwidth and 4 V/µs slew rate. Its copper leadframe minimizes thermocouple errors at PCB solder joints, critical for sub-microvolt stability.
This dual-channel device operates across −40°C to +125°C with guaranteed 60 µV VOS max over temperature, 930 µA per-channel supply current, and rail-to-rail output swing within 30 mV of rails at 5 V - making it suitable for battery-powered and industrial-grade measurement systems where long-term DC accuracy is non-negotiable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Offset Voltage (max) | 60 µV over −40°C to +125°C - ensures <±0.006% gain error in 100× gain thermocouple amplifiers without trimming. |
| Input Voltage Noise | 35 nV/√Hz flat spectrum - eliminates low-frequency drift in DC-coupled measurements below 0.1 Hz. |
| CMRR | 130 dB typical - rejects >99.9997% of common-mode interference in unshielded industrial sensor wiring. |
| Gain-Bandwidth Product | 3 MHz - supports stable unity-gain buffer operation for 16-bit SAR ADCs with <1 LSB settling error. |
| Rail-to-Rail Output Swing | Within 30 mV of V+ and V− at 5 V - enables full-scale utilization of 5 V ADC reference without headroom loss. |
| Supply Current per Channel | 930 µA at 5 V - allows dual-channel precision amplification in 2.7–5 V systems with <2 mW total quiescent power. |
| Open-Loop Gain | 130 dB typical - guarantees <1 ppm linearity error in high-gain (≥1000×) transducer amplifier configurations. |
Pinout & Package
VSSOP-8 (DGK) package: 3.00 mm × 3.00 mm body, 0.65 mm pitch, thin-profile surface-mount design optimized for space-constrained PCB layouts in portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUT A | Amplified output of Channel A - drives ADC inputs or downstream filters with 15 mA sink/source capability. |
| 2 | –IN A | Inverting input of Channel A - connects to feedback network in inverting configurations or sensor return paths. |
| 3 | +IN A | Non-inverting input of Channel A - interfaces directly with high-impedance sensors (e.g., thermocouple junctions). |
| 4 | V− | Negative supply rail - must be connected to system ground or negative rail; shared by both channels. |
| 5 | +IN B | Non-inverting input of Channel B - enables simultaneous dual-sensor conditioning (e.g., differential bridge + reference). |
| 6 | –IN B | Inverting input of Channel B - used for matched gain-setting resistors in dual instrumentation amplifier topologies. |
| 7 | OUT B | Amplified output of Channel B - independent output stage allows separate filtering or multiplexing per channel. |
| 8 | V+ | Positive supply rail - accepts 2.7–5.25 V; decoupling capacitor required within 5 mm for PSRR optimization. |
Key Features
| Feature | Design Value |
|---|---|
| No 1/f voltage noise | Flat 35 nV/√Hz spectral density down to 0.001 Hz - eliminates integration-time-dependent drift in precision data loggers. |
| Auto-zero offset correction | Continuous internal calibration at ~35 kHz - achieves 0.015 µV/°C TCVOS and <2.5 µV lifetime VOS drift. |
| Copper leadframe construction | Eliminates thermocouple EMF at PCB interface - reduces thermal offset drift to <0.001 µV/°C ΔT between lead and trace. |
| Rail-to-rail output with no external caps | Stable operation without output phase-compensation capacitors - simplifies layout and avoids dielectric absorption errors. |
| High PSRR (120 dB) | Rejects >99.999% of supply ripple - enables direct connection to noisy switched-mode power rails in embedded 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: Dual-channel precision instrumentation amplifier front-end - Channel A conditions thermocouple, Channel B buffers cold-junction compensation sensor. Use Value: 60 µV max VOS ensures <±0.3°C absolute accuracy without calibration; 130 dB CMRR rejects EMI from nearby motors or AC wiring. |
Use Scenario: Signal conditioning for 350 Ω Wheatstone bridge strain gauges in load cells and pressure transducers. IC Role / Device Role / Timing Role: Dual-op-amp implementation of 3-op-amp instrumentation topology - one LMP2012MA provides matched gain and common-mode rejection. Use Value: 0.015 µV/°C TCVOS prevents thermal zero-shift during equipment warm-up; rail-to-rail output maximizes dynamic range into 16-bit ADCs. |
| ADC Driver / Buffer | Precision Reference Buffer |
|
Use Scenario: Driving SAR ADC inputs (e.g., ADS8860) requiring fast settling, low THD+N, and minimal charge kickback. IC Role / Device Role / Timing Role: Unity-gain buffer isolating high-impedance voltage references or sensor outputs from ADC sampling capacitance. Use Value: 4 V/µs slew rate and 3 MHz GBW ensure <1 LSB settling in <500 ns; 35 nV/√Hz noise preserves ENOB in 16-bit conversions. |
Use Scenario: Buffering ultra-stable voltage references (e.g., REF5025) for multi-channel analog front-ends in medical DAQ systems. IC Role / Device Role / Timing Role: Low-drift, low-noise unity-gain follower maintaining reference integrity under varying load currents. Use Value: 930 µA supply current enables always-on reference buffering; 130 dB AVOL guarantees <0.1 ppm gain error over temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| OPA2189IDGKT | Lower VOS (4 µV max), higher GBW (12 MHz), but 1.3 mA/channel supply current and requires external compensation cap for stability. | Better for wideband precision filtering; less suitable for battery-powered 5 V systems due to higher quiescent power. | Select when sub-10 µV offset and >5 MHz bandwidth outweigh power and layout complexity constraints. |
| AD8629ARZ-REEL7 | Similar VOS (25 µV max), lower noise (12 nV/√Hz), but only 2.5 MHz GBW and 1.2 mA supply current; SOIC-8 only. | Preferred for ultra-low-noise DC amplification where bandwidth ≤2 MHz is acceptable and board space permits SOIC. | Choose when lowest possible voltage noise dominates over speed and power - especially in photodiode TIA front-ends. |
Compared with OPA2189IDGKT and AD8629ARZ-REEL7, the LMP2012MA offers the optimal balance of ultra-low drift (60 µV max), flat-noise performance, rail-to-rail output, and sub-1 mA power in a space-saving VSSOP-8 - making it uniquely suited for dual-channel, battery-operated, wide-temperature industrial sensors.
Availability
LMP2012MA is available at Aetrix Electronics and suitable for precision instrumentation, industrial sensor interfaces, and medical data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LMP2012MA 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The LMP2012MA belongs to TI's LMP™ precision amplifier family - engineered specifically for applications demanding ultra-stable DC accuracy, low 1/f noise, and rail-to-rail operation in miniature packages for space- and power-constrained systems.
FAQ
What is the maximum operating temperature range for the LMP2012MA?
The LMP2012MA is fully specified from −40°C to +125°C ambient temperature. All key DC parameters - including input offset voltage (60 µV max), CMRR (90 dB min), and PSRR (90 dB min) - are ensured across this full industrial temperature range per TI's production test correlation methodology.
Does the LMP2012MA require external compensation capacitors?
No, the LMP2012MA is internally compensated and does not require external capacitors for stability. Its auto-zero architecture and output stage design allow stable unity-gain operation with capacitive loads up to 500 pF - eliminating dielectric absorption errors and simplifying PCB layout compared to traditional precision op-amps.
How does the LMP2012MA achieve zero 1/f noise?
The LMP2012MA uses TI's patented auto-zero technique - continuously sampling and nulling input offset at ~35 kHz - which replaces low-frequency 1/f noise with flat-band white noise at 35 nV/√Hz. This eliminates drift in long-integration measurements and enables true DC-coupled performance down to 0.001 Hz without signal degradation.
What is the output drive capability of the LMP2012MA?
The LMP2012MA delivers ±15 mA output current per channel (sourcing and sinking) at 5 V supply. At 2.7 V, it sustains ±8 mA while maintaining rail-to-rail swing within 105 mV of each rail - sufficient to drive 10 kΩ ADC inputs, RC anti-aliasing filters, and moderate-capacitance cables without gain error or settling delay.
Is the LMP2012MA pin-compatible with other dual op-amps in VSSOP-8?
No - the LMP2012MA has a unique pinout optimized for dual-channel instrumentation: pins 1/7 are outputs, pins 2/3/5/6 are inputs, and pins 4/8 are supplies. It is not pin-compatible with generic dual op-amps like LMV358 or TLV2372 in VSSOP-8; PCB layout must follow TI's DGK package diagram to avoid functional failure.
LMP2012MA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- LMP®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
LMP2012MA FAQ
1.How can I place an order for LMP2012MA through Aetrix?
Please submit a Request for Quotation (RFQ) for LMP2012MA 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 LMP2012MA reliable?
The price and inventory of LMP2012MA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LMP2012MA is usually 5 days.
3.What payment methods are accepted for LMP2012MA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LMP2012MA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LMP2012MA?
LMP2012MA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LMP2012MA 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 LMP2012MA?
For technical support, including LMP2012MA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LMP2012MA requirements.
6.How does Aetrix verify that LMP2012MA is sourced from the original manufacturer or authorized distributors?
All LMP2012MA 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 LMP2012MA meets industry standards.
7.What is the process for return or replacement of LMP2012MA?
All LMP2012MA units undergo pre-shipment inspection (PSI). If there is an issue with LMP2012MA, 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 LMP2012MA part is unused and in its original packaging.
Return procedure for LMP2012MA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LMP2012MA Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
