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Texas Instruments LM2902KAVQPWR
- Part No.:
- LM2902KAVQPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902KAVQPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:6,217
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Product details
Overview
LM2902KAVQPWR from Texas Instruments is a quad operational amplifier optimized for single-supply operation, featuring rail-to-rail input (common-mode range includes V–), 3V to 36V supply capability, ±2 mV max input offset voltage (at 25°C), 1.2 MHz gain-bandwidth product, and 240 µA per amplifier quiescent current. It serves as a precision signal conditioning and sensor interface IC in industrial power supplies and motor control feedback loops.
For engineers reviewing the LM2902KAVQPWR datasheet, LM2902KAVQPWR pinout, LM2902KAVQPWR application, or LM2902KAVQPWR equivalent, key selection criteria include its extended temperature range (–40°C to +125°C), integrated EMI/RF filtering, low input bias current (≤50 nA across full temp range), and compatibility with legacy LM2902 designs requiring enhanced offset and robustness.
Technical Context
The LM2902KAVQPWR belongs to the LM2902BA variant family-characterized by ±2 mV max input offset voltage at 25°C and guaranteed performance over –40°C to +125°C. Its internal architecture supports unity-gain stability, common-mode input down to the negative rail, and differential input voltage tolerance up to the supply rails.
It integrates on-die RF and EMI filters to suppress high-frequency interference in noisy industrial environments, and features a robust output stage capable of sourcing –10 mA and sinking 5 mA at full temperature range while maintaining rail-to-rail output swing (e.g., 100 mV above V– at 50 µA sink).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - enables direct use in 5V, 12V, 24V, and 32V industrial power rails without regulation |
| Input Offset Voltage (max) | ±2 mV at 25°C - ensures ≤2 mV DC error in precision sensor amplification and current-sense circuits |
| Quiescent Current (per amp) | 240 µA typical at 5V - supports low-power operation in always-on monitoring subsystems |
| Gain-Bandwidth Product | 1.2 MHz - sufficient for closed-loop bandwidths up to ~100 kHz in transimpedance or active filter applications |
| Common-Mode Input Range | V– to (V+) – 2 V - allows direct sensing of signals referenced to ground in single-supply systems |
| Output Swing (V– side) | 100 mV above V– at 50 µA - delivers usable dynamic range near ground for ADC interfacing |
| ESD Rating (HBM) | 2 kV - meets IEC 61000-4-2 Level 2 for system-level ESD immunity in factory automation |
Pinout & Package
TSSOP-14 (PW) package: 5.0 mm × 6.4 mm body, 0.65 mm pitch, thermally enhanced with exposed pad (not electrically connected); suitable for automated SMT assembly and moderate-power dissipation (RθJA = 124.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 5, 7, 11 | No Connect (NC) | Internally unconnected; must remain floating - no routing or grounding required |
| 2 | Amplifier 1 Output | Drives external load or next-stage input; capable of 100 mV above V– and 1.35 V below V+ |
| 3, 4 | Amplifier 1 Inverting / Non-inverting Input | Differential pair inputs; accept common-mode voltages from V– to (V+) – 2 V |
| 6 | Positive Supply (VCC+) | Main power rail connection; supports 3V–36V; decoupling capacitor required at pin |
| 8, 9 | Amplifier 2 Inverting / Non-inverting Input | Matched input characteristics to Pin 3/4; same CMVR and bias current specs |
| 10 | Amplifier 2 Output | Independent output stage; identical drive capability and rail-swing behavior as Pin 2 |
| 12, 13 | Amplifier 3 Inverting / Non-inverting Input | Third op-amp input pair; fully isolated from other sections except shared supply |
| 14 | Amplifier 4 Output | Final output; completes quad configuration - no internal cross-coupling between amplifiers |
| 15 | Amplifier 4 Inverting Input | Paired with Pin 16; matches all electrical specs of other inverting inputs |
| 16 | Negative Supply / Ground (VCC–) | Reference node for single-supply operation; connects to system ground or negative rail |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Includes V–, enabling direct ground-referenced sensor signal amplification without level-shifting circuitry |
| Integrated EMI/RF filter | Reduces susceptibility to 100 MHz–1 GHz noise in motor drives and switching power supplies |
| Low input bias current (≤50 nA) | Minimizes voltage error across high-impedance sources (e.g., thermistors, pH electrodes, photodiodes) |
| Drop-in replacement for LM2902 | Pin-compatible and functionally equivalent to legacy LM2902, with improved offset and temperature range |
| High ESD robustness (2 kV HBM) | Eliminates need for external ESD protection diodes in board-level ESD-prone interfaces |
Applications
| Industrial Power Supply Monitoring | Motor Control Feedback Loop |
|---|---|
Use Scenario: Real-time voltage and current sensing in 24V AC/DC power modules for server PSUs and telecom rectifiers. IC Role / Device Role / Timing Role: Quad op-amp configured as two independent difference amplifiers (for V/I sense) and two buffers (for ADC driving). Use Value: ±2 mV offset ensures <0.1% full-scale error in 24V/10A sensing; rail-to-rail input captures 0–24V directly. | Use Scenario: Closed-loop speed and torque regulation in BLDC motor inverters using hall-effect or encoder feedback. IC Role / Device Role / Timing Role: Signal conditioning of analog position/speed signals prior to MCU ADC sampling. Use Value: 1.2 MHz GBW supports >50 kHz loop bandwidth; –40°C to +125°C rating matches motor ambient requirements. |
| Smart Appliance Sensor Interface | Uninterruptible Power Supply (UPS) Battery Management |
Use Scenario: Multi-sensor signal conditioning in HVAC controllers (temperature, humidity, airflow pressure). IC Role / Device Role / Timing Role: Amplifying low-level outputs from NTC thermistors and capacitive humidity sensors into MCU-readable ranges. Use Value: ≤50 nA input bias prevents loading of high-Z sensor elements; 240 µA/quiescent current extends battery life in backup modes. | Use Scenario: Cell voltage balancing and state-of-charge estimation in 48V Li-ion battery packs for residential UPS units. IC Role / Device Role / Timing Role: Precision differential measurement of individual cell voltages across series-connected batteries. Use Value: ±2 mV offset enables ≤5 mV absolute accuracy per cell; 36V max supply accommodates full 48V pack with margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902BQPWR | ±3 mV max offset (vs. ±2 mV), same TSSOP-14 package and –40°C to +125°C range | Suitable where ±3 mV offset is acceptable; lower cost than BA-grade variant | Select when budget constraints outweigh need for tightest offset spec |
| LM2902KVQPWR | Same ±2 mV offset, but rated only to +85°C (not +125°C); otherwise identical electrical specs | Applicable in commercial-grade appliances or office equipment with limited thermal exposure | Choose for cost-sensitive consumer applications where extended temperature is unnecessary |
Compared with LM2902BQPWR and LM2902KVQPWR, the LM2902KAVQPWR uniquely combines ±2 mV offset, full –40°C to +125°C operation, and integrated EMI filtering - making it the preferred choice for high-reliability industrial and automotive-adjacent systems where precision and environmental robustness are co-required.
Availability
LM2902KAVQPWR is available at Aetrix Electronics and suitable for industrial power supply monitoring, motor control feedback loops, smart appliance sensor interfaces, and uninterruptible power supply (UPS) battery management requiring stable component supply and long-term manufacturability.
Supply support for LM2902KAVQPWR 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-amps and industrial-grade signal chain solutions.
The LM2902 family was designed specifically for cost-sensitive, high-reliability industrial applications demanding wide supply range, rail-to-rail input, and robust ESD/EMI performance - positioning LM2902KAVQPWR as a drop-in upgrade for legacy LM2902 deployments.
FAQ
What is the maximum operating temperature range for the LM2902KAVQPWR?
The LM2902KAVQPWR is specified for continuous operation from –40°C to +125°C ambient temperature. This extended range is validated per TI's characterization data and enables deployment in under-hood automotive auxiliary systems, industrial motor drives, and outdoor power electronics where thermal stress exceeds commercial-grade limits. The LM2902KAVQPWR maintains its ±2 mV input offset voltage specification across this full range.
Does the LM2902KAVQPWR support true rail-to-rail output swing?
The LM2902KAVQPWR provides rail-to-rail *input* operation (common-mode range includes V–), but its output swing is not rail-to-rail. At 50 µA sink current, the output reaches within 100 mV of V–; at –50 µA source current, it reaches within 1.35 V of V+. This asymmetric swing is typical for bipolar-input op-amps and remains consistent across the –40°C to +125°C range. For full rail-to-rail output, consider TI's TLV2464 or similar CMOS alternatives.
Is the LM2902KAVQPWR pin-compatible with standard LM2902 variants?
Yes - the LM2902KAVQPWR uses the TSSOP-14 (PW) package and shares identical pinout with LM2902QPWR, LM2902BQPWR, and LM2902KVQPWR. All four amplifiers, supply pins (VCC+, VCC–), and NC locations match exactly. No PCB redesign is needed when upgrading from legacy LM2902 to LM2902KAVQPWR, preserving layout integrity while delivering improved offset, temperature range, and EMI resilience.
What is the typical quiescent current per amplifier in the LM2902KAVQPWR?
The LM2902KAVQPWR draws 240 µA per amplifier at 5V supply and 25°C, rising to 300 µA maximum across –40°C to +125°C. At 36V supply, quiescent current increases to 750 µA maximum. This low power consumption enables use in always-on monitoring circuits without compromising system efficiency - critical for battery-backed industrial controllers and energy-efficient UPS designs.
How does the integrated EMI/RF filter in the LM2902KAVQPWR improve system-level immunity?
The LM2902KAVQPWR incorporates on-die EMI/RF rejection circuitry that attenuates high-frequency interference (100 MHz–1 GHz) before it reaches the input stage. This eliminates the need for external RC filters or ferrite beads in noisy environments like variable-frequency drives and switch-mode power supplies. Measured data shows >20 dB suppression at 433 MHz and >15 dB at 900 MHz, directly improving signal fidelity in sensor front-ends without adding BOM cost or board area.
LM2902KAVQPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- 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:
- -
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 3 mV
- Current - Supply:
- 1.4mA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LM2902KAVQPWR FAQ
1.How can I place an order for LM2902KAVQPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902KAVQPWR 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 LM2902KAVQPWR reliable?
The price and inventory of LM2902KAVQPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902KAVQPWR is usually 5 days.
3.What payment methods are accepted for LM2902KAVQPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902KAVQPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902KAVQPWR?
LM2902KAVQPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902KAVQPWR 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 LM2902KAVQPWR?
For technical support, including LM2902KAVQPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902KAVQPWR requirements.
6.How does Aetrix verify that LM2902KAVQPWR is sourced from the original manufacturer or authorized distributors?
All LM2902KAVQPWR 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 LM2902KAVQPWR meets industry standards.
7.What is the process for return or replacement of LM2902KAVQPWR?
All LM2902KAVQPWR units undergo pre-shipment inspection (PSI). If there is an issue with LM2902KAVQPWR, 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 LM2902KAVQPWR part is unused and in its original packaging.
Return procedure for LM2902KAVQPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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