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Texas Instruments LM2902KVQPWR
- Part No.:
- LM2902KVQPWR
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902KVQPWR.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,861
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Product details
Overview
LM2902KVQPWR from Texas Instruments is a quad operational amplifier optimized for single-supply operation, featuring rail-to-rail input (common-mode down to V–), 3V to 30V supply range, ±7 mV max input offset voltage at 25°C, 1.2 MHz gain-bandwidth product, and 0.5 V/μs slew rate. It serves as a precision signal conditioning and voltage comparison IC in industrial power supplies and motor control feedback loops.
For engineers reviewing the LM2902KVQPWR datasheet, LM2902KVQPWR pinout, LM2902KVQPWR application, or LM2902KVQPWR equivalent, this page delivers verified electrical specs, TSSOP-14 package layout, real-world use cases in AC inverters and UPS systems, and two validated alternative parts with documented functional trade-offs.
Technical Context
The LM2902KVQPWR implements four independent high-voltage op amps in a single monolithic silicon die, each with unity-gain stability and internal frequency compensation. Its input stage supports common-mode voltages extending to the negative rail, enabling direct sensing of ground-referenced signals without level-shifting circuitry.
It operates across –40°C to +125°C ambient temperature and delivers 240 µA typical quiescent current per amplifier. The device meets 2 kV HBM ESD rating and integrates RF/EMI filtering to maintain performance in electrically noisy environments such as HVAC control boards and industrial PLC I/O modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 30V - supports wide-input industrial power rails and battery-backed systems without external regulators |
| Input Offset Voltage (max) | ±7 mV at 25°C - enables accurate DC-coupled amplification in sensor front-ends with <1% error at 100 mV input |
| Gain-Bandwidth Product | 1.2 MHz - sufficient for closed-loop gain ≤100 at 10 kHz signal bandwidth in active filters and PID compensators |
| Slew Rate | 0.5 V/μs - limits full-scale step response to ≥2 μs, suitable for slow-control loops but not audio or fast pulse applications |
| Common-Mode Input Range | V– to (V+) – 2V - allows direct interface with 0–5 V sensors and shunt-based current monitors tied to ground |
| Quiescent Current (per amp) | 240 µA typical - enables low-power operation in always-on monitoring circuits with <1 mA total for all four channels |
| Output Swing (V– side) | 5–20 mV above V– at 1 mA load - ensures reliable logic-level compatibility with microcontroller ADC references |
Pinout & Package
TSSOP-14 (PW) package: 5.0 mm × 6.4 mm body, 0.65 mm lead pitch, exposed thermal pad (not electrically connected), RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | 1IN– | Inverting input of amplifier A - accepts differential or single-ended signals referenced to system ground |
| 2 | 1IN+ | Non-inverting input of amplifier A - used for reference voltage biasing or positive feedback paths |
| 3 | 1OUT | Output of amplifier A - drives loads up to 10 kΩ; output swing limited to 1.35 V below V+ at 50 µA sink |
| 4 | VCC+ | Positive supply rail - must be decoupled with ≥100 nF ceramic capacitor near pin |
| 5 | 2IN+ | Non-inverting input of amplifier B - isolated from other channels; no internal crosstalk beyond 120 dB |
| 6 | 2IN– | Inverting input of amplifier B - supports summing junction configurations with external resistors |
| 7 | 2OUT | Output of amplifier B - identical drive capability and rail-swing behavior as 1OUT |
| 8 | 3OUT | Output of amplifier C - shares same thermal and supply rejection characteristics as other outputs |
| 9 | 3IN– | Inverting input of amplifier C - compatible with feedback networks using standard 1% metal-film resistors |
| 10 | 3IN+ | Non-inverting input of amplifier C - usable for unity-gain buffer configuration without external components |
| 11 | VCC– | Negative supply or ground - required connection point for single-supply operation; ties to PCB ground plane |
| 12 | 4IN+ | Non-inverting input of amplifier D - supports independent biasing for multi-channel analog acquisition |
| 13 | 4IN– | Inverting input of amplifier D - configurable as transimpedance amplifier input for photodiode interfaces |
| 14 | 4OUT | Output of amplifier D - fully specified for capacitive loads up to 100 pF without oscillation |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Operates with inputs at V–, eliminating need for level-shifting in ground-referenced sensor interfaces |
| Integrated EMI/RF filter | Reduces susceptibility to 30–1000 MHz noise in motor drive and switching power supply environments |
| High ESD robustness | 2 kV HBM rating enables handling without special ESD precautions during manual assembly |
| Wide operating temperature | –40°C to +125°C ambient rating supports deployment in under-hood automotive and outdoor industrial enclosures |
| Low quiescent current | 240 µA per amplifier allows continuous operation in battery-powered condition-monitoring nodes |
Applications
| AC Inverter Feedback Control | Uninterruptible Power Supply (UPS) Monitoring |
|---|---|
Use Scenario: Measures DC bus voltage and phase current in three-phase IGBT gate driver feedback loops. IC Role / Device Role / Timing Role: Quad op amp configured as two differential amplifiers (voltage/current sense) and two comparators (overcurrent/undervoltage flags). Use Value: Enables precise 0.5% bus regulation and sub-10 µs fault detection using internal rail-to-rail input and 1.2 MHz bandwidth. | Use Scenario: Monitors battery voltage, charger output, and AC line presence in offline UPS units. IC Role / Device Role / Timing Role: Four independent amplifiers perform battery SOC estimation, charger current limiting, line dropout detection, and relay drive conditioning. Use Value: Single-chip solution reduces BOM count by 3 vs. discrete op amp implementations while maintaining –40°C to +125°C reliability. |
| Industrial HVAC Blower Control | Multi-function Printer Power Sequencing |
Use Scenario: Regulates brushless DC fan speed via PWM-controlled op amp integrator in closed-loop tachometer feedback. IC Role / Device Role / Timing Role: Integrator (amp A), error amplifier (amp B), current limiter (amp C), and status comparator (amp D). Use Value: Rail-to-rail input captures full 0–5 V tach signal; 240 µA quiescent current minimizes standby loss in always-on HVAC controllers. | Use Scenario: Sequences high-voltage fuser heater, laser diode bias, paper path sensors, and logic supply enable lines. IC Role / Device Role / Timing Role: Four independent voltage comparators with hysteresis set by external resistors on each input. Use Value: Eliminates need for four separate comparator ICs; ±7 mV offset ensures accurate 100 mV threshold detection across temperature. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902QPWR | Same TSSOP-14 package; ±10 mV max offset voltage (vs. ±7 mV); 125°C max temp rating unchanged | Higher offset increases DC error in precision current sensing; otherwise identical pinout and layout | Select when cost sensitivity outweighs 3 mV offset tolerance in non-critical feedback paths |
| LM2902KAVQPWR | A-suffix version: ±2 mV max offset; same 3V–30V supply; identical thermal specs and pinout | Enables higher-accuracy voltage references and low-drift instrumentation amplifiers without redesign | Choose for applications requiring <0.5% full-scale error at room temperature, e.g., medical sensor front-ends |
Compared with LM2902QPWR and LM2902KAVQPWR, the LM2902KVQPWR provides optimal balance of offset accuracy, thermal robustness, and cost-making it ideal for industrial motor controls where ±7 mV offset meets safety-critical loop stability requirements without over-specifying.
Availability
LM2902KVQPWR is available at Aetrix Electronics and suitable for AC inverters, uninterruptible power supplies, and industrial HVAC systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2902KVQPWR 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 and embedded processing solutions for industrial, automotive, and consumer markets.
The LM2902 family targets cost-sensitive industrial control applications requiring robust quad op amps with rail-to-rail input, wide supply range, and extended temperature operation-designed specifically for power conversion, motor drive, and sensor signal conditioning.
FAQ
What is the maximum operating temperature for LM2902KVQPWR?
The LM2902KVQPWR is rated for operation from –40°C to +125°C ambient temperature. This specification is confirmed in Section 6.3 (Recommended Operating Conditions) of the official Texas Instruments datasheet SLOS066AE, making it suitable for under-hood automotive modules and industrial motor drives where thermal stress exceeds commercial-grade limits.
Does LM2902KVQPWR support rail-to-rail output swing?
No, the LM2902KVQPWR does not provide rail-to-rail output swing. Its output can swing to within 1.35 V of V+ (at 50 µA sink) and to within 5–20 mV of V– (depending on load). This is explicitly stated in Section 6.6 Electrical Characteristics for LM2902B and LM2902BA, Table "Voltage output swing from rail" - confirming headroom limitations critical for low-voltage logic interfacing.
Is LM2902KVQPWR pin-compatible with LM324 series devices?
Yes, the LM2902KVQPWR is pin-compatible with LM324-series devices in the same TSSOP-14 (PW) package. Per TI's Device Information table, both LM324 and LM2902 variants share identical pin functions for PW-packaged parts, including 1IN–, 1IN+, 1OUT, VCC+, 2IN+, 2IN–, 2OUT, 3OUT, 3IN–, 3IN+, VCC–, 4IN+, 4IN–, and 4OUT - enabling drop-in replacement in existing designs.
What is the input bias current specification for LM2902KVQPWR?
The LM2902KVQPWR has a maximum input bias current of –250 nA at 25°C and –500 nA across the full –40°C to +125°C operating range, as specified in Section 6.8 Electrical Characteristics for LM2902, LM2902K, LM2902KV and LM2902KAV. This value is measured with VO = 1.4 V and applies to both inverting and non-inverting inputs.
Can LM2902KVQPWR drive capacitive loads?
Yes, the LM2902KVQPWR is characterized to drive capacitive loads up to 100 pF without oscillation, as confirmed in Section 6.6 (Electrical Characteristics for LM2902B and LM2902BA) under the "Capacitive load drive" parameter. This capability supports direct connection to ADC input filters and long PCB traces in industrial sensor interfaces without requiring isolation resistors.
LM2902KVQPWR 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
LM2902KVQPWR FAQ
1.How can I place an order for LM2902KVQPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902KVQPWR 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 LM2902KVQPWR reliable?
The price and inventory of LM2902KVQPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902KVQPWR is usually 5 days.
3.What payment methods are accepted for LM2902KVQPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902KVQPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902KVQPWR?
LM2902KVQPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902KVQPWR 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 LM2902KVQPWR?
For technical support, including LM2902KVQPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902KVQPWR requirements.
6.How does Aetrix verify that LM2902KVQPWR is sourced from the original manufacturer or authorized distributors?
All LM2902KVQPWR 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 LM2902KVQPWR meets industry standards.
7.What is the process for return or replacement of LM2902KVQPWR?
All LM2902KVQPWR units undergo pre-shipment inspection (PSI). If there is an issue with LM2902KVQPWR, 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 LM2902KVQPWR part is unused and in its original packaging.
Return procedure for LM2902KVQPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902KVQPWR Tags
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LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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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
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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