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Texas Instruments LM2902KVQPWRG4
- Part No.:
- LM2902KVQPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902KVQPWRG4.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,203
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Product details
Overview
LM2902KVQPWRG4 from Texas Instruments is a quadruple operational amplifier optimized for single-supply industrial applications, featuring rail-to-rail input (V– to V+ − 2 V), ±3 mV max input offset voltage at −40°C to +125°C, 1.2 MHz gain-bandwidth product, and 240 µA per amplifier quiescent current. It operates from 3 V to 36 V and drives capacitive loads up to 100 pF in sensor signal conditioning, power supply monitoring, and motor control feedback loops.
For engineers reviewing the LM2902KVQPWRG4 datasheet, LM2902KVQPWRG4 pinout, LM2902KVQPWRG4 application, or LM2902KVQPWRG4 equivalent, key selection criteria include its extended temperature range (−40°C to +125°C), guaranteed output swing within 20 mV of V– at 1 mA load, integrated EMI/RF filtering, and compatibility with legacy LM2902 designs requiring enhanced robustness and lower drift.
Technical Context
The LM2902KVQPWRG4 belongs to the LM2902x B-series family and implements a standard voltage-feedback op-amp architecture with internal frequency compensation for unity-gain stability. Its input stage supports common-mode voltages down to the negative rail, enabling direct sensing of ground-referenced signals without level-shifting circuitry.
It delivers 0.5 V/µs slew rate and 56° phase margin into 10 kΩ || 20 pF, ensuring stable operation in closed-loop configurations such as active filters, transimpedance amplifiers, and comparator hysteresis networks across automotive and industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 36 V - supports wide-input industrial power rails and battery-backed systems without external regulation |
| Input Offset Voltage (max) | ±3 mV at −40°C to +125°C - enables accurate DC-coupled amplification in temperature-varying environments |
| Quiescent Current (per amp) | 240 µA typical at 5 V - allows low-power operation in always-on monitoring circuits |
| Gain-Bandwidth Product | 1.2 MHz - sufficient for anti-aliasing filters, sensor amplification, and medium-speed control loops |
| Output Swing (V– side) | 5 mV to 20 mV above V– at 1 mA load - ensures full dynamic range utilization in single-supply configurations |
| Capacitive Load Drive | 100 pF - permits direct connection to ADC input buffers or long PCB traces without instability |
| ESD Rating (HBM) | 2 kV - meets IEC 61000-4-2 Level 2 requirements for board-level surge immunity |
Pinout & Package
TSSOP-14 (PW) package: 5 mm × 6.4 mm body, 0.65 mm pitch, exposed thermal pad (not electrically connected), RoHS-compliant, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN–) | Inverting input | Accepts feedback or inverted signal path; referenced to V– for rail-to-rail input operation |
| 2 (IN+) | Non-inverting input | Accepts reference or sensor signal; common-mode range includes V– |
| 3 (OUT) | Amplifier output | Drives loads up to 10 mA sink/source; swings within 20 mV of V– and 1.75 V of V+ |
| 4 (V–) | Negative supply / ground | Reference node for single-supply operation; must be tied to system ground or negative rail |
| 5 (IN+) | Non-inverting input | Second amplifier positive input; isolated from other channels except via substrate coupling |
| 6 (IN–) | Inverting input | Second amplifier negative input; used in differential or inverting configurations |
| 7 (OUT) | Amplifier output | Output of second op-amp; identical electrical specs to Pin 3 |
| 8 (NC) | No connect | Internally unused; must remain unconnected per TI design guidelines |
| 9 (IN–) | Inverting input | Third amplifier negative input; shares same layout constraints as Pins 1 and 6 |
| 10 (IN+) | Non-inverting input | Third amplifier positive input; supports high-impedance sensor interfaces |
| 11 (OUT) | Amplifier output | Third amplifier output; capable of driving 100 pF directly |
| 12 (IN+) | Non-inverting input | Fourth amplifier positive input; routed separately to minimize crosstalk |
| 13 (IN–) | Inverting input | Fourth amplifier negative input; matched to other inputs for channel uniformity |
| 14 (OUT) | Amplifier output | Fourth amplifier output; fully specified across full temperature range |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input common-mode range | Extends to V–, eliminating need for input biasing resistors in ground-sensed applications |
| Integrated EMI and RF filter | Reduces susceptibility to 30–1000 MHz noise in motor drive and switching power supply environments |
| Low input bias current (≤35 nA max) | Preserves accuracy in high-impedance pH, thermocouple, or photodiode front-ends |
| Drop-in replacement for LM2902 | Pin-compatible with legacy LM2902K/LM2902KV, enabling upgrade without PCB revision |
| Extended operating temperature | Rated for −40°C to +125°C ambient, supporting under-hood automotive and industrial control cabinet use |
Applications
| Motor Control Feedback | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Amplifying current-sense resistor voltage in BLDC motor gate driver feedback paths. IC Role / Device Role / Timing Role: Quad op-amp configured as four independent current monitors with matched gain and offset. Use Value: ±3 mV offset ensures <1% error in 100 mV sense voltage; rail-to-rail input captures full PWM duty-cycle range. | Use Scenario: Monitoring multiple DC bus voltages (12 V, 24 V, 48 V) in telecom rectifiers and UPS systems. IC Role / Device Role / Timing Role: Four-channel voltage comparator and buffer for analog supervision circuits. Use Value: 36 V absolute max supply rating allows direct connection to unregulated rails; 240 µA IQ minimizes standby loss. |
| Sensor Signal Conditioning | Automotive HVAC Blower Control |
Use Scenario: Amplifying low-level outputs from NTC thermistors and RTDs in environmental monitoring modules. IC Role / Device Role / Timing Role: Precision instrumentation amplifier front-end with programmable gain and offset correction. Use Value: 7 µV/°C offset drift maintains calibration over vehicle cabin temperature extremes (−40°C to +85°C). | Use Scenario: Closed-loop speed regulation of DC blower motors using back-EMF sensing and PWM feedback. IC Role / Device Role / Timing Role: Error amplifier in analog PID loop compensator for fan speed stability. Use Value: 1.2 MHz GBW supports >10 kHz control bandwidth; 0.5 V/µs slew rate prevents phase lag in transient response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902DR | SOIC-14 package; same electrical specs but higher RθJA (99.3°C/W vs. 124.7°C/W); no integrated EMI filter | Limited to lower-power, less-noisy environments; not qualified for AEC-Q200 automotive stress testing | Select when cost-sensitive PCB space allows larger SOIC footprint and EMI immunity is externally managed |
| LM2902BQDR | B-version with ±2 mV max offset (BA variant), 2 kV HBM/1.5 kV CDM ESD, and improved PSRR (100 dB) | Higher precision required in medical diagnostics or precision data acquisition where offset drift dominates error budget | Choose when tighter initial offset and lower drift justify premium pricing and qualification for harsher environments |
Compared with LM2902DR and LM2902BQDR, the LM2902KVQPWRG4 offers optimal balance of industrial-grade reliability (125°C operation, EMI filtering), TSSOP space efficiency, and drop-in compatibility with legacy LM2902KV designs-making it ideal for volume production in motor drives and power electronics where layout reuse and supply chain continuity are critical.
Availability
LM2902KVQPWRG4 is available at Aetrix Electronics and suitable for industrial motor control, power supply supervision, and automotive HVAC systems requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LM2902KVQPWRG4 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 personal electronics markets.
The LM2902x series was developed specifically for cost-sensitive, high-reliability industrial applications demanding rail-to-rail input operation, extended temperature capability, and robust ESD/EMI performance in compact packages.
FAQ
What is the maximum operating junction temperature for the LM2902KVQPWRG4?
The LM2902KVQPWRG4 has an absolute maximum junction temperature of 150°C. Its thermal resistance (RθJA) is 124.7°C/W in the TSSOP-14 package, so sustained operation at full ambient (125°C) requires careful power dissipation management-typically limiting total quiescent power to ≤200 mW across all four amplifiers to maintain safe margins.
Does the LM2902KVQPWRG4 support dual-supply operation?
Yes, the LM2902KVQPWRG4 supports dual-supply operation with V+ and V– rails. Its common-mode input range extends to V–, and output swing reaches within 20 mV of V– and 1.75 V of V+, making it suitable for ±15 V, ±12 V, or asymmetric supplies like +24 V / –5 V-provided total supply voltage remains between 3 V and 36 V.
Can the LM2902KVQPWRG4 drive a 10 kΩ load while maintaining rail-to-rail output swing?
Yes. At 1 mA load (equivalent to 10 kΩ on a 10 V span), the LM2902KVQPWRG4 guarantees output swing within 1 V of V+ and 20 mV of V– across −40°C to +125°C. This is verified per Electrical Characteristics Table 6.6, confirming full dynamic range usability in precision single-supply signal chains.
Is the LM2902KVQPWRG4 pin-compatible with the original LM2902K?
Yes. The LM2902KVQPWRG4 uses the same TSSOP-14 (PW) footprint and pinout as LM2902K and LM2902KV variants. All four amplifier inputs, outputs, and supply pins match identically-enabling direct replacement without layout changes, provided the PCB's thermal relief and solder mask define the exposed pad correctly per TI's PW package guidelines.
What is the typical input offset voltage drift over temperature for the LM2902KVQPWRG4?
The LM2902KVQPWRG4 exhibits ±7 µV/°C maximum input offset voltage drift (dVOS/dT) across −40°C to +125°C, as specified in Table 6.6. This value is measured under RS = 0 Ω conditions and reflects worst-case parametric shift-critical for applications like temperature-compensated strain gauge bridges where long-term DC stability is mandatory.
LM2902KVQPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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
LM2902KVQPWRG4 FAQ
1.How can I place an order for LM2902KVQPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902KVQPWRG4 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 LM2902KVQPWRG4 reliable?
The price and inventory of LM2902KVQPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902KVQPWRG4 is usually 5 days.
3.What payment methods are accepted for LM2902KVQPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902KVQPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902KVQPWRG4?
LM2902KVQPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902KVQPWRG4 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 LM2902KVQPWRG4?
For technical support, including LM2902KVQPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902KVQPWRG4 requirements.
6.How does Aetrix verify that LM2902KVQPWRG4 is sourced from the original manufacturer or authorized distributors?
All LM2902KVQPWRG4 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 LM2902KVQPWRG4 meets industry standards.
7.What is the process for return or replacement of LM2902KVQPWRG4?
All LM2902KVQPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LM2902KVQPWRG4, 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 LM2902KVQPWRG4 part is unused and in its original packaging.
Return procedure for LM2902KVQPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902KVQPWRG4 Tags
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