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Texas Instruments LM2902KAVQPWRQ1
- Part No.:
- LM2902KAVQPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902KAVQPWRQ1.pdf
- Description:
- IC OPAMP GP 4 CIRCUIT 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,691
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Product details
Overview
LM2902KAVQPWRQ1 from Texas Instruments is a quad-channel automotive-grade operational amplifier designed for low-voltage, cost-sensitive systems. It delivers ±1 mV input offset voltage, 1 MHz unity-gain bandwidth, 40 nV/√Hz input voltage noise density, 90 µA per channel quiescent current, and operates from 2.7 V to 5.5 V supply - enabling precision single-supply current sensing in HEV/EV motor control and ADAS sensor interfaces.
For engineers reviewing the LM2902KAVQPWRQ1 datasheet, LM2902KAVQPWRQ1 pinout, LM2902KAVQPWRQ1 application, or LM2902KAVQPWRQ1 equivalent, this page provides verified technical context, validated pin functions, AEC-Q100 Grade 1–qualified performance data, and real-world implementation guidance for automotive signal conditioning.
Technical Context
The LM2902KAVQPWRQ1 implements a P-channel input differential pair with parallel N-channel stage to eliminate phase reversal during overdrive while maintaining rail-to-rail common-mode input range down to V–. Its unity-gain stable architecture supports direct use in gain-of-1 configurations without external compensation.
Designed for AEC-Q100 Grade 1 (–40°C to +125°C), it features robust ESD protection (2-kV HBM, 1-kV CDM), 84 dB minimum CMRR at 2.7 V across temperature, and 1 µs overload recovery time - critical for fast transient response in motor current feedback loops and battery monitoring circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V - enables direct interface with 3.3 V and 5 V automotive microcontrollers and ADCs without level-shifting. |
| Input Offset Voltage | ±1 mV (typ) - ensures ≤100 µV error in 100 mΩ shunt-based current sensing at 1 A full scale. |
| Unity-Gain Bandwidth | 1 MHz - supports closed-loop response up to ~100 kHz for motor phase current reconstruction. |
| Quiescent Current | 90 µA per channel - allows four amplifiers to operate continuously on <360 µA total, ideal for always-on vehicle modules. |
| Common-Mode Input Range | V– to (V+ – 1 V) - permits true single-supply operation with inputs referenced to ground in low-side sensing. |
| Output Voltage Swing | Within 40 mV of V– and 1 V of V+ - delivers >3.5 V output headroom at 5 V supply for 12-bit ADC interfacing. |
| ESD Rating | 2 kV HBM, 1 kV CDM - meets automotive assembly and handling requirements per ISO 10605. |
Pinout & Package
TSSOP-14 package (4.40 mm × 5.00 mm body size), thermally optimized for automotive PCB layouts with exposed pad option (PW suffix). Pinout matches industry-standard LM2902 pin compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 7, 8, 14 | Output (OUT1–OUT4) | Amplifier outputs; each capable of sourcing/sinking ±40 mA, supporting direct drive of RC filters or comparator inputs. |
| 2, 6, 9, 13 | Inverting Input (IN1––IN4–) | Differential inputs with 2 pF differential capacitance - minimizes phase shift in high-frequency feedback networks. |
| 3, 5, 10, 12 | Noninverting Input (IN1+–IN4+) | High-impedance inputs (±15 pA bias current) enable precise voltage monitoring without loading sensor bridges. |
| 4 | Positive Supply (V+) | Primary power rail; requires local 0.1 µF ceramic bypass capacitor to suppress switching noise from adjacent DC/DC converters. |
| 11 | Negative Supply (V–) | Ground reference for single-supply operation; connects directly to system GND plane to minimize common-impedance coupling. |
Key Features
| Feature | Design Value |
|---|---|
| No phase reversal under overdrive | Guaranteed via dual-input-stage architecture - prevents latch-up and false triggering in motor fault detection circuits. |
| Rail-to-rail input common-mode range | Extends to V– and within 1 V of V+ - eliminates need for input biasing resistors in single-supply transducer interfaces. |
| Low 40 nV/√Hz input voltage noise | Enables resolution of sub-mV signals in high-gain sensor front-ends without requiring external filtering or averaging. |
| AEC-Q100 Grade 1 qualification | Validated for continuous operation at 125°C junction temperature - suitable for engine bay and powertrain ECUs. |
| 1 µs overload recovery time | Ensures rapid return to linear operation after current-sense amplifier saturation during short-circuit events. |
Applications
| Infotainment Power Monitoring | ADAS Camera Sensor Interface |
|---|---|
Use Scenario: Real-time 12 V rail current monitoring in head unit power management ICs. IC Role / Device Role / Timing Role: Quad op amp configured as four independent current-sense amplifiers for multi-rail diagnostics. Use Value: ±1 mV offset enables <±10 mA measurement accuracy at 1 A full scale, supporting ISO 26262 ASIL-B diagnostic coverage. |
Use Scenario: Amplification of analog pixel output from CMOS image sensors in surround-view cameras. IC Role / Device Role / Timing Role: Single-supply buffer with rail-to-rail input for DC-coupled video signal conditioning. Use Value: 1 MHz bandwidth preserves edge integrity in 30 fps video streams; 40 nV/√Hz noise maintains >60 dB SNR at 10-bit resolution. |
| HEV/EV Inverter Phase Current Sensing | Body Control Module Load Diagnostics |
Use Scenario: Low-side shunt-based current measurement in 3-phase IGBT gate driver feedback loops. IC Role / Device Role / Timing Role: Precision gain stage preceding isolated sigma-delta modulator in motor control subsystem. Use Value: 1 µs overload recovery ensures accurate current capture during 10 µs PWM dead-time intervals without signal distortion. |
Use Scenario: Detection of open/short circuit conditions in LED lighting drivers and window motor H-bridges. IC Role / Device Role / Timing Role: Comparator input buffer with hysteresis generation for robust load status classification. Use Value: 90 µA/channel quiescent current allows continuous monitoring across 16+ loads without exceeding BCU sleep-mode budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902QPWRQ1 | Higher input offset (±3 mV typ), 150 µA/ch IQ, same pinout and package | Lower precision; acceptable for non-critical body electronics where cost is primary constraint | Select LM2902KAVQPWRQ1 when ±1 mV offset or <100 µA/ch IQ is required for ASIL-B diagnostics. |
| TLV2764IPW | Lower IQ (20 µA/ch), but only 200 kHz GBW and –40°C to 85°C rating | Not AEC-Q100 qualified; unsuitable for powertrain or ADAS; limited bandwidth restricts motor control use | Choose LM2902KAVQPWRQ1 for automotive Grade 1 environments requiring 1 MHz bandwidth and extended temperature support. |
Compared with LM2902QPWRQ1 and TLV2764IPW, the LM2902KAVQPWRQ1 uniquely balances AEC-Q100 Grade 1 qualification, 1 MHz bandwidth, ±1 mV offset, and 90 µA/ch IQ - making it the only option among the three qualified for HEV/EV inverter current sensing and ADAS sensor signal chains.
Availability
LM2902KAVQPWRQ1 is available at Aetrix Electronics and suitable for infotainment power monitoring, ADAS camera interfaces, HEV/EV inverter current sensing, and body control module diagnostics requiring stable component supply across automotive production lifecycles.
Supply support for LM2902KAVQPWRQ1 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 over 50 years of automotive IC design expertise and AEC-Q100-compliant manufacturing.
The LM290xLV-Q1 product line targets cost-optimized, low-voltage automotive signal conditioning - delivering precision amplification for current sensing, sensor interfacing, and power management in AEC-Q100 Grade 1 environments.
FAQ
What is the maximum operating junction temperature for LM2902KAVQPWRQ1?
The LM2902KAVQPWRQ1 is rated for continuous operation up to 150°C junction temperature, with guaranteed specifications over –40°C to +125°C ambient. Its TSSOP-14 package achieves 135.3°C/W junction-to-ambient thermal resistance, enabling reliable use in under-hood ECUs when mounted on 2-oz copper with thermal vias.
Does LM2902KAVQPWRQ1 support single-supply operation with inputs at ground potential?
Yes. The LM2902KAVQPWRQ1 features a common-mode input voltage range extending to V– (ground in single-supply mode) and within 1 V of V+, enabling direct connection of transducer outputs or shunt resistors without level-shifting circuitry - a key enabler for low-side current sensing.
What is the overload recovery time specification for LM2902KAVQPWRQ1?
The LM2902KAVQPWRQ1 has a typical overload recovery time of 1 µs, measured from saturated output to linear operation under 5 V supply. This parameter is critical for motor control applications where rapid current feedback is needed after PWM-induced saturation events.
Is LM2902KAVQPWRQ1 pin-compatible with legacy LM2902-Q1 devices?
Yes. The LM2902KAVQPWRQ1 uses the standard 14-pin TSSOP footprint and identical pinout as the LM2902-Q1 family, allowing drop-in replacement in existing designs - provided the lower 90 µA/ch quiescent current and improved ±1 mV offset are compatible with system-level calibration.
What ESD protection level does LM2902KAVQPWRQ1 provide?
The LM2902KAVQPWRQ1 is rated for 2-kV Human Body Model (HBM) and 1-kV Charged Device Model (CDM) ESD protection, meeting automotive assembly and handling requirements per ISO 10605 and supporting robustness in automated SMT lines and field-repair scenarios.
LM2902KAVQPWRQ1 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:
- 60 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 32 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LM2902KAVQPWRQ1 FAQ
1.How can I place an order for LM2902KAVQPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902KAVQPWRQ1 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 LM2902KAVQPWRQ1 reliable?
The price and inventory of LM2902KAVQPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902KAVQPWRQ1 is usually 5 days.
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4.How is shipping managed for LM2902KAVQPWRQ1?
LM2902KAVQPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902KAVQPWRQ1 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 LM2902KAVQPWRQ1?
For technical support, including LM2902KAVQPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902KAVQPWRQ1 requirements.
6.How does Aetrix verify that LM2902KAVQPWRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2902KAVQPWRQ1 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 LM2902KAVQPWRQ1 meets industry standards.
7.What is the process for return or replacement of LM2902KAVQPWRQ1?
All LM2902KAVQPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2902KAVQPWRQ1, 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 LM2902KAVQPWRQ1 part is unused and in its original packaging.
Return procedure for LM2902KAVQPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902KAVQPWRQ1 Tags
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LM358DT
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LM358DR
Texas Instruments
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LM2902PWR
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LM2902DR
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LM358P
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