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Texas Instruments LP2902M/NOPB
- Part No.:
- LP2902M/NOPB
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LP2902M/NOPB.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,481
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Product details
Overview
LP2902M/NOPB from Texas Instruments is a micropower quad operational amplifier optimized for battery-powered systems, featuring 85 μA typical supply current, 2 mV typical input offset voltage, and rail-to-ground input common-mode range. It operates from 3 V to 26 V and interfaces directly with CMOS logic in single-supply sensor signal conditioning and portable instrumentation.
For engineers reviewing the LP2902M/NOPB datasheet, LP2902M/NOPB pinout, LP2902M/NOPB application, or LP2902M/NOPB equivalent, key selection criteria include ultra-low quiescent current, ground-sensing inputs, guaranteed −40°C to +85°C operation, and SOIC-14 package compatibility with legacy LM324 layouts.
Technical Context
The LP2902M/NOPB integrates four internally compensated, high-gain op-amps with class-B output stages enabling both sourcing and sinking of up to 10 mA output current. Its input stage supports common-mode voltages down to ground (0 V), eliminating need for input biasing in single-supply configurations.
It features low input bias current (2 nA typ), low input offset current (0.5 nA typ), and stable operation driving capacitive loads up to 1000 pF without external compensation-making it suitable for precision DC-coupled amplification and active filtering where power efficiency is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 26 V - enables direct use in 5 V, 12 V, and 24 V industrial and portable systems without regulation |
| Quiescent Current | 85 μA per amplifier (typ) - extends battery life in always-on monitoring circuits by >10× vs LM324 |
| Input Offset Voltage | 2 mV (typ), 4 mV (max) - supports accurate DC amplification in strain gauge and thermistor interfaces |
| Input Common-Mode Range | 0 V to V+−1.5 V - allows direct connection of grounded sensors without level-shifting circuitry |
| Output Swing | 3.6 V min (sourcing), 0.7 V max (sinking) at V+ = 5 V - delivers usable dynamic range near supply rails in single-supply designs |
| Gain Bandwidth Product | 100 kHz - sufficient for low-frequency signal conditioning (e.g., ECG, pressure transducers) with stable unity-gain response |
| Slew Rate | 50 V/ms - limits large-signal transient response but ensures stability in DC-precision applications |
Pinout & Package
LP2902M/NOPB is housed in a 14-pin SOIC (D) package (8.75 mm × 4.0 mm × 1.75 mm max height), RoHS-compliant with Sn lead finish and MSL Level-1 rating. Thermal resistance θJA is 140°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Output A | Amplifier A output; capable of sourcing/sinking ≥10 mA; connects to feedback network in standard op-amp configurations |
| 2 | Inverting Input A | High-impedance input (2 nA bias); adjacent to Pin 1 for compact inverting amplifier layout |
| 3 | Non-Inverting Input A | DC-coupled to ground-referenced signals; supports rail-to-rail common-mode range |
| 4 | V− (GND) | Ground reference for all amplifiers; required return path for input bias currents and output load current |
| 5 | Non-Inverting Input B | Independent input for second amplifier; shares same ground and supply as other sections |
| 6 | Inverting Input B | Paired with Pin 7 (Output B) for minimal trace length in dual-channel designs |
| 7 | Output B | Second amplifier output; identical electrical specs to Pin 1 |
| 8 | V+ | Positive supply rail (3–26 V); decoupling capacitor recommended within 1 cm of this pin |
| 9 | Output C | Third amplifier output; positioned at corner for easy access in PCB routing |
| 10 | Inverting Input C | Matches Pin 2/6 functionality; designed for consistent layout symmetry across all four channels |
| 11 | Non-Inverting Input C | Supports grounded sensor inputs; no external bias required due to GND-inclusive common-mode range |
| 12 | Non-Inverting Input D | Fourth amplifier non-inverting input; electrically isolated but thermally coupled to other sections |
| 13 | Inverting Input D | Paired with Pin 14; enables compact differential or summing configurations |
| 14 | Output D | Final amplifier output; corner placement simplifies fanout to external circuitry or ADC drivers |
Key Features
| Feature | Design Value |
|---|---|
| Micropower Operation | 85 μA per amplifier enables multi-year battery life in wireless sensor nodes and handheld meters |
| Rail-to-Ground Input | Common-mode range includes 0 V, allowing direct interface with grounded transducers without level shifters |
| CMOS Logic Compatibility | Output swing reaches within 0.7 V of GND and 1.9 V below V+, ensuring reliable TTL/CMOS interfacing |
| Stable Capacitive Loading | Drives 50–1000 pF loads without oscillation-ideal for anti-aliasing filters and DAC output buffers |
| Extended Temperature Range | Specified from −40°C to +85°C supports industrial automation and automotive cabin electronics |
Applications
| Portable Instrumentation | Battery Backup Monitoring |
|---|---|
Use Scenario: Handheld multimeter front-end amplifying microvolt-level thermocouple or RTD signals. IC Role / Device Role / Timing Role: Quad op-amp provides simultaneous gain, filtering, reference buffering, and comparator hysteresis generation. Use Value: 2 mV offset and 85 μA quiescent current enable sub-millivolt accuracy and >5-year coin-cell operation. | Use Scenario: UPS or telecom backup system monitoring battery voltage, temperature, and charge current. IC Role / Device Role / Timing Role: Four independent amplifiers condition analog sensor outputs and drive status comparators. Use Value: Rail-to-ground inputs accept 0–2.5 V battery sense signals directly; low IQ minimizes standby drain on backup cells. |
| Low-Power Sensor Interface | Industrial Process Control |
Use Scenario: Wireless environmental sensor node measuring humidity, CO₂, and ambient light with MCU-integrated ADC. IC Role / Device Role / Timing Role: Signal conditioner for resistive/humidity sensors and photodiode transimpedance amplifier. Use Value: 2 nA input bias avoids measurement error in high-impedance sensor bridges; 100 kHz GBW supports 10 Hz–1 kHz signal bandwidth. | Use Scenario: PLC analog input module acquiring 4–20 mA loop signals and thermocouple outputs in factory settings. IC Role / Device Role / Timing Role: Isolation amplifier buffer, cold-junction compensation, and linearization circuitry. Use Value: −40°C to +85°C rating ensures reliability in uncontrolled cabinet environments; SOIC-14 footprint matches legacy LM324-based designs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DR | Higher supply current (1.2 mA per amp), wider offset (7 mV max), no guaranteed −40°C operation | Cost-sensitive consumer applications where battery life and extended temp are not required | Select LM324DR only when legacy design reuse outweighs power/performance trade-offs |
| TLV2464IDR | Lower offset (1.6 mV typ), higher IQ (550 μA), rail-to-rail I/O, 2.5 V min supply | Systems requiring full rail-to-rail output swing and operation below 3 V (e.g., Li-ion powered devices) | Choose TLV2464IDR when output headroom <100 mV is mandatory and supply can support higher current |
Compared with LM324DR and TLV2464IDR, LP2902M/NOPB uniquely balances ultra-low quiescent current, ground-sensing inputs, and industrial temperature range-making it optimal for long-life, single-supply, precision analog front-ends where power and DC accuracy are jointly constrained.
Availability
LP2902M/NOPB is available at Aetrix Electronics and suitable for portable instrumentation, battery backup monitoring, and low-power sensor interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LP2902M/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, embedded processing, and connectivity solutions with emphasis on reliability, energy efficiency, and system-level integration.
The LP2902M/NOPB belongs to TI's micropower operational amplifier product line, engineered specifically for battery-operated and energy-constrained systems requiring precision DC performance without sacrificing operating life.
FAQ
What is the maximum supply voltage for LP2902M/NOPB?
The absolute maximum supply voltage for LP2902M/NOPB is 26 V (or ±13 V). The recommended operating range is 3 V to 26 V. Exceeding 26 V risks permanent damage, as confirmed in the Absolute Maximum Ratings table of the SNOSBX6C datasheet. Designers must ensure transient overvoltage protection if used in 24 V industrial systems.
Does LP2902M/NOPB support true rail-to-rail input?
LP2902M/NOPB supports input common-mode voltage down to ground (0 V), but not to V+. Its specified input range is 0 V to V+−1.5 V. This "rail-to-ground" capability enables direct interfacing with grounded sensors, unlike rail-to-rail-input op-amps that extend to both supply rails. The feature is explicitly documented in the Electrical Characteristics table under VCM.
Is LP2902M/NOPB pin-compatible with LM324?
Yes, LP2902M/NOPB is pin-for-pin compatible with LM324 in SOIC-14 (D) and PDIP-14 (N) packages, as stated in the "APPLICATION HINTS" section of the datasheet. However, differences in supply current, offset voltage, and temperature range mean direct substitution requires validation of system-level power and accuracy requirements.
What is the thermal resistance θJA for LP2902M/NOPB in SOIC-14 package?
The junction-to-ambient thermal resistance (θJA) for LP2902M/NOPB in the SOIC-14 (D) package is 140°C/W, per the Operating Conditions table in SNOSBX6C. This value assumes standard JEDEC 2-layer board conditions and is critical for calculating maximum allowable power dissipation at elevated ambient temperatures.
Can LP2902M/NOPB drive capacitive loads without oscillation?
Yes, LP2902M/NOPB is characterized for stable operation with capacitive loads from 50 pF to 1000 pF, as noted in the APPLICATION HINTS section. No external compensation is required for these loads, making it suitable for driving anti-aliasing filters or ADC input capacitance without risk of phase margin degradation.
LP2902M/NOPB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 4
- Output Type:
- -
- Slew Rate:
- 0.05V/µs
- Gain Bandwidth Product:
- 100 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 2 nA
- Voltage - Input Offset:
- 2 mV
- Current - Supply:
- 85µA
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 26 V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
LP2902M/NOPB FAQ
1.How can I place an order for LP2902M/NOPB through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2902M/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 LP2902M/NOPB reliable?
The price and inventory of LP2902M/NOPB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2902M/NOPB is usually 5 days.
3.What payment methods are accepted for LP2902M/NOPB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2902M/NOPB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2902M/NOPB?
LP2902M/NOPB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2902M/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 LP2902M/NOPB?
For technical support, including LP2902M/NOPB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2902M/NOPB requirements.
6.How does Aetrix verify that LP2902M/NOPB is sourced from the original manufacturer or authorized distributors?
All LP2902M/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 LP2902M/NOPB meets industry standards.
7.What is the process for return or replacement of LP2902M/NOPB?
All LP2902M/NOPB units undergo pre-shipment inspection (PSI). If there is an issue with LP2902M/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 LP2902M/NOPB part is unused and in its original packaging.
Return procedure for LP2902M/NOPB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP2902M/NOPB Tags
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LM358DT
STMicroelectronics
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Texas Instruments
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LM2904DR
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LM324PWR
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LM2902DR
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