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Texas Instruments LP2902PW
- Part No.:
- LP2902PW
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LP2902PW.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,259
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Product details
Overview
LP2902PW from Texas Instruments is a quadruple ultra-low-power operational amplifier optimized for battery-powered systems, featuring 85 μA typical supply current, 2 mV typical input offset voltage, and rail-to-rail output swing capability with single-supply operation down to 3 V - deployed in portable instrumentation and LCD display biasing circuits.
For engineers reviewing the LP2902PW datasheet, LP2902PW pinout, LP2902PW application, or LP2902PW equivalent, key selection criteria include guaranteed −40°C to +85°C operation, TSSOP-14 package compatibility, input common-mode range extending to ground, and pin compatibility with legacy LM324 designs requiring low quiescent current and wide supply voltage (3–32 V).
Technical Context
The LP2902PW implements four independent high-input-impedance op-amps sharing a single dual-rail or single-rail supply, with input stages designed for ground-sensing operation and output stages capable of sourcing/sinking ≥7 mA while maintaining low distortion in DC-coupled sensor signal conditioning paths.
Its architecture prioritizes power efficiency over bandwidth: gain-bandwidth product is 100 kHz and slew rate is 50 V/ms at ±15 V, making it unsuitable for high-frequency AC amplification but ideal for precision DC gain stages, active filters below 100 Hz, and low-speed transducer interfaces where thermal drift and supply current dominate design constraints.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Current | 85 μA typical per amplifier - enables multi-year battery life in always-on sensor nodes and handheld meters. |
| Input Offset Voltage | 2 mV typical - supports accurate DC amplification of microvolt-level thermocouple or strain gauge signals without nulling circuitry. |
| Input Bias Current | 2 nA typical - preserves signal integrity when driving high-impedance sources like photodiodes or piezoelectric sensors. |
| Supply Voltage Range | 3 V to 32 V single supply - accommodates both coin-cell (3 V) and industrial 24 V rail systems without level-shifting. |
| Input Common-Mode Range | Includes ground (0 V) - allows direct interfacing with grounded sensors and single-supply ADC drivers without external bias networks. |
| Output Swing | Within 1.9 V of rails at full load - delivers usable dynamic range in 5 V or 12 V systems for analog front-end buffering. |
| Operating Temperature | −40°C to +85°C - qualified for automotive cabin electronics, industrial control panels, and outdoor metering equipment. |
Pinout & Package
TSSOP-14 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm lead pitch, 1.2 mm max height, exposed pad not present, RoHS-compliant NiPdAu/Sn lead finish, MSL Level-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output (OUT1–OUT4) | Amplifier outputs; each drives loads up to 7 mA source / 5 mA sink with <1.9 V headroom to rails. |
| 2, 6, 9, 13 | Inverting Input (IN−) | Negative inputs; high-impedance (2 nA bias), compatible with passive feedback networks and unity-gain stable configurations. |
| 3, 5, 10, 12 | Non-inverting Input (IN+) | Positive inputs; common-mode range includes ground, enabling direct connection to 0 V-referenced sensors. |
| 4 | Positive Supply (VCC+) | Highest potential supply rail; accepts 3–32 V DC; decoupling capacitor required within 10 mm for stability. |
| 11 | Negative Supply (VCC−) | Lowest potential rail - tied to ground in single-supply mode; supports true dual-supply operation down to ±16 V. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 85 μA per amplifier enables >10-year operation on CR2032 batteries in intermittent-sampling IoT nodes. |
| Ground-sensing input stage | Input common-mode range extends to VCC− (GND), eliminating need for input bias resistors in single-supply transducer interfaces. |
| LM324 pin compatibility | Direct drop-in replacement for legacy LM324 designs without PCB layout changes - same pin assignment and footprint. |
| Wide supply voltage range | Operates from 3 V to 32 V single supply or ±16 V dual supply, supporting both portable and industrial power domains. |
| Robust ESD protection | ±350 V HBM rating ensures reliability during manual handling and board assembly in non-ESD-controlled environments. |
Applications
| Portable Instrumentation | LCD Display Biasing |
|---|---|
|
Use Scenario: Battery-powered handheld multimeter measuring DC voltage, resistance, and continuity. IC Role / Device Role / Timing Role: LP2902PW provides precision gain stages for analog front-end signal conditioning and reference buffer for ADC driver circuits. Use Value: 85 μA supply current extends battery life beyond 2 years; 2 mV offset ensures ≤0.1% measurement error across 0–200 mV input range. |
Use Scenario: Segment driver for monochrome STN LCD panel in medical diagnostic device. IC Role / Device Role / Timing Role: LP2902PW generates stable VCOM and bias voltages using resistor-divider feedback networks. Use Value: Input common-mode range to ground allows direct connection to DAC outputs; rail-to-rail output swing maximizes contrast ratio. |
| Sensor Signal Conditioning | Power Supply Monitoring |
|
Use Scenario: Low-power gas sensor module detecting CO concentration via electrochemical cell output. IC Role / Device Role / Timing Role: LP2902PW acts as transimpedance amplifier converting pA-level sensor current into measurable voltage. Use Value: 2 nA input bias current prevents loading of high-impedance sensor electrode; 2 mV offset minimizes zero-point calibration drift. |
Use Scenario: Overvoltage/undervoltage detection in 12 V automotive accessory power module. IC Role / Device Role / Timing Role: LP2902PW compares regulated 5 V rail against precision reference to trigger fault latching circuit. Use Value: 3–32 V supply range covers full automotive battery variation (9–16 V); −40°C to +85°C rating ensures under-hood reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM324DR | Higher 1.2 mA supply current; wider −25°C to +85°C temp range; same SOIC-14 pinout but larger package. | Not suitable for multi-year battery operation; acceptable for mains-powered test equipment with thermal margin. | Select LM324DR only when higher drive strength (40 mA output) or legacy qualification is required - not for ultra-low-power designs. |
| LP324PWR | Identical electrical specs but rated for 0°C to +70°C ambient; same TSSOP-14 package and pinout as LP2902PW. | Limited to commercial indoor applications; fails automotive or industrial temperature validation requirements. | Choose LP324PWR only for cost-sensitive consumer electronics where extended temperature range is unnecessary. |
Compared with LM324DR and LP324PWR, the LP2902PW uniquely balances −40°C to +85°C operation, 85 μA supply current, and TSSOP-14 footprint - making it the sole option for space-constrained, battery-powered industrial sensors requiring extended temperature compliance.
Availability
LP2902PW is available at Aetrix Electronics and suitable for portable instrumentation, LCD display biasing, sensor signal conditioning, and power supply monitoring requiring stable component supply across extended temperature ranges and long-life battery operation.
Supply support for LP2902PW 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 since 1930.
The LP2902PW belongs to TI's ultra-low-power operational amplifier product line, engineered specifically for battery-operated instrumentation and portable electronics where minimizing supply current without sacrificing DC precision is critical.
FAQ
What is the operating temperature range of the LP2902PW?
The LP2902PW is specified for operation from −40°C to +85°C ambient temperature. This extended industrial temperature range is confirmed in the device information table and Recommended Operating Conditions section of the official datasheet. The LP2902PW maintains its 85 μA typical supply current and 2 mV typical input offset voltage across this full range, making it suitable for automotive cabin modules and outdoor metering applications where thermal cycling occurs.
Is the LP2902PW pin-compatible with the LM324?
Yes, the LP2902PW is fully pin-compatible with the LM324 in TSSOP-14 (PW) and SOIC-14 (D) packages. Pin functions - including IN+, IN−, OUT, VCC+, and VCC− - match identically, and the datasheet explicitly states "Pin compatible with LM324." However, the LP2902PW draws only 85 μA versus LM324's 1.2 mA, so existing LM324 designs can be upgraded to LP2902PW for battery life extension without PCB changes.
What is the maximum supply voltage for the LP2902PW?
The LP2902PW supports a maximum supply voltage of 32 V in single-supply configuration or ±16 V in dual-supply mode, as defined in the Absolute Maximum Ratings table. Exceeding 32 V risks permanent damage. At 30 V supply, the device maintains 75 dB PSRR and 75 dB CMRR across the −40°C to +85°C range, enabling use in 24 V industrial control systems with minimal supply ripple coupling.
Does the LP2902PW have rail-to-rail input or output capability?
The LP2902PW features rail-to-rail output swing but not rail-to-rail input. Its input common-mode voltage range extends to the negative rail (ground), allowing direct connection to 0 V-referenced sources, but does not reach the positive rail. Output swing is specified as within 1.9 V of each rail under load - e.g., 3.4 V minimum high-level output at 5 V supply - sufficient for most single-supply sensor interfaces and LCD biasing applications.
What package type is used for the LP2902PW?
The LP2902PW uses the TSSOP-14 (PW) package: 4.4 mm × 5.0 mm body size, 0.65 mm lead pitch, 1.2 mm maximum height, and NiPdAu/Sn lead finish. This surface-mount package is RoHS-compliant and rated MSL Level-1, meaning it may be stored indefinitely before reflow. The PW package offers 30% smaller footprint than SOIC-14, enabling compact layouts in portable medical and wearable devices where board space is constrained.
LP2902PW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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 (x4 Channels)
- Current - Output / Channel:
- 10 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LP2902PW FAQ
1.How can I place an order for LP2902PW through Aetrix?
Please submit a Request for Quotation (RFQ) for LP2902PW 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 LP2902PW reliable?
The price and inventory of LP2902PW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LP2902PW is usually 5 days.
3.What payment methods are accepted for LP2902PW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LP2902PW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LP2902PW?
LP2902PW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LP2902PW 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 LP2902PW?
For technical support, including LP2902PW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LP2902PW requirements.
6.How does Aetrix verify that LP2902PW is sourced from the original manufacturer or authorized distributors?
All LP2902PW 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 LP2902PW meets industry standards.
7.What is the process for return or replacement of LP2902PW?
All LP2902PW units undergo pre-shipment inspection (PSI). If there is an issue with LP2902PW, 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 LP2902PW part is unused and in its original packaging.
Return procedure for LP2902PW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LP2902PW Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
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MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
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