My Inquiry
My Account
Texas Instruments LM2902BAQPWRQ1
- Part No.:
- LM2902BAQPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2902BAQPWRQ1.pdf
- Description:
- AUTOMOTIVE QUAD 36V 1.2MHZ 2MV
- Quantity:
- Payment:
- Shipping:
Inventory:5,975
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LM2902BAQPWRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified quad operational amplifier for automotive systems, featuring 2 mV max input offset voltage at 25°C, 1.2 MHz unity-gain bandwidth, 175 µA per-channel quiescent current, and rail-to-rail output swing capability down to 100 mV above V– and 1.35 V below V+. It serves as a precision signal conditioner in body electronics, BMS sensing, and telematics control units.
For engineers reviewing the LM2902BAQPWRQ1 datasheet, LM2902BAQPWRQ1 pinout, LM2902BAQPWRQ1 application, or LM2902BAQPWRQ1 equivalent, key selection criteria include its automotive-grade ESD robustness (±1000 V HBM), integrated RF/EMI filtering, wide 3V–36V supply range, common-mode input range extending to V–, and differential input voltage tolerance up to ±40 V - all validated across –40°C to +125°C.
Technical Context
The LM2902BAQPWRQ1 implements four independent, internally compensated voltage-feedback op-amps optimized for single-supply operation. Its input stage supports common-mode voltages from V– to (V+) – 2 V over full temperature range, enabling direct interfacing with sensors referenced to ground in 12V/24V automotive architectures.
It delivers 0.5 V/µs slew rate and 56° phase margin into 20 pF capacitive load, ensuring stable unity-gain configurations without external compensation. The device integrates electromagnetic interference rejection (EMIRR > 60 dB at 100 MHz) and meets stringent automotive EMC requirements via on-die RF filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 36 V - supports direct connection to 12 V and 24 V vehicle batteries with headroom for transients |
| Input Offset Voltage (max) | 2 mV at 25°C - enables accurate DC-coupled sensor amplification without trimming in cost-sensitive modules |
| Unity-Gain Bandwidth | 1.2 MHz - sufficient for low-frequency signal conditioning (e.g., thermistor, potentiometer, current shunt outputs) |
| Quiescent Current | 175 µA per channel - allows four-channel operation under 700 µA total, critical for always-on automotive subsystems |
| Common-Mode Input Range | V– to (V+) – 2 V - permits ground-referenced inputs in single-supply configurations without level-shifting circuitry |
| Differential Input Voltage | ±40 V - withstands battery disconnect/load dump transients without damage or latch-up |
| Output Voltage Swing | 100 mV above V– / 1.35 V below V+ (at 50 µA) - maximizes dynamic range in 3.3 V or 5 V microcontroller ADC interfaces |
Pinout & Package
TSSOP-14 (PW) package: 5 mm × 6.4 mm, 1.2 mm height, lead pitch 0.65 mm, exposed thermal pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT1 (Pin 1) | Output, Channel 1 | Amplified output of first op-amp; drives loads up to 5 mA sink/source while maintaining rail proximity |
| IN1– (Pin 2) | Inverting Input, Channel 1 | Negative feedback node; accepts signals within V– to (V+) – 1.5 V at 25°C |
| IN1+ (Pin 3) | Noninverting Input, Channel 1 | Reference or sensor input node; supports common-mode down to V– |
| V+ (Pin 4) | Positive Supply | Highest potential supply rail; must be ≥ 3 V and ≤ 36 V relative to V– |
| IN2+ (Pin 5) | Noninverting Input, Channel 2 | Independent input for second amplifier; electrically isolated from other channels |
| IN2– (Pin 6) | Inverting Input, Channel 2 | Feedback node for second op-amp; shares same input voltage range specs as IN1– |
| OUT2 (Pin 7) | Output, Channel 2 | Second independent output; identical AC/DC performance to OUT1 |
| OUT3 (Pin 8) | Output, Channel 3 | Third output; no crosstalk degradation beyond 120 dB at 1–20 kHz |
| IN3– (Pin 9) | Inverting Input, Channel 3 | Third amplifier inverting input; validated for operation across full automotive temperature range |
| IN3+ (Pin 10) | Noninverting Input, Channel 3 | Third amplifier noninverting input; supports same input bias current (–35 nA typ) as other channels |
| V– (Pin 11) | Negative Supply / Ground | Lowest potential rail; used as reference for single-supply operation or negative rail in split-supply mode |
| IN4+ (Pin 12) | Noninverting Input, Channel 4 | Fourth amplifier input; fully specified for ESD immunity (CDM C5) and RF rejection |
| IN4– (Pin 13) | Inverting Input, Channel 4 | Fourth amplifier feedback node; supports differential input up to ±40 V |
| OUT4 (Pin 14) | Output, Channel 4 | Final output; maintains 0.5 V/µs slew rate and 1.2 MHz GBW under all operating conditions |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with HBM ±1000 V and CDM ±1500 V ESD robustness |
| Integrated RF and EMI filter | Reduces susceptibility to GSM, LTE, and Bluetooth band interference without external ferrites or RC networks |
| Input offset voltage drift | ±7 µV/°C - ensures < 0.5 mV total offset shift over full temperature range, critical for precision BMS voltage monitoring |
| Capacitive load drive | Stable with up to 100 pF - eliminates need for isolation resistors when driving long PCB traces or ADC input capacitance |
| Supply-voltage rejection ratio | 65–100 dB - suppresses ripple and noise from unregulated 12 V battery rails in lighting and infotainment modules |
Applications
| Automotive Body Electronics | Electric Vehicle Battery Management |
|---|---|
Use Scenario: Signal conditioning for door lock actuators, window lift sensors, and seat position potentiometers in 12 V vehicle architectures. IC Role / Device Role / Timing Role: Quad op-amp providing gain, filtering, and level-shifting for analog sensor outputs prior to MCU ADC sampling. Use Value: Single-chip solution replaces discrete op-amp arrays, reducing BOM count and PCB area while meeting ASIL-B functional safety requirements via AEC-Q100 qualification. | Use Scenario: Amplifying voltage taps across series-connected Li-ion cells in high-voltage traction battery packs. IC Role / Device Role / Timing Role: Precision buffer and gain stage for cell voltage monitoring circuits, operating from isolated auxiliary 5 V supplies. Use Value: 2 mV max offset and ±40 V differential input rating enable accurate sub-10 mV resolution cell voltage measurement without calibration. |
| Telematics Control Unit (TCU) | Automotive Head Unit Audio Interface |
Use Scenario: Conditioning GNSS antenna signals, CAN bus voltage-level translation, and diagnostic sensor inputs in cellular-connected TCU modules. IC Role / Device Role / Timing Role: General-purpose analog front-end for mixed-signal telemetry functions requiring EMI resilience and wide supply tolerance. Use Value: Integrated RF filtering and 125°C operation ensure reliable signal integrity in engine bay–adjacent mounting locations with minimal layout overhead. | Use Scenario: Line-level audio signal routing, microphone pre-amplification, and equalization in infotainment head units powered from 5 V or 3.3 V rails. IC Role / Device Role / Timing Role: Low-noise, low-distortion op-amp for analog audio path stages before DAC or after ADC. Use Value: 35 nV/√Hz input voltage noise density and 0.001% THD+N at 1 kHz support high-fidelity audio processing without added SNR penalty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2902BQPWRQ1 | 3 mV max input offset voltage (vs. 2 mV), otherwise identical electrical specs and pinout | Suitable where ±3 mV offset is acceptable for cost-optimized body control modules | Select LM2902BQPWRQ1 when tighter offset is not required and unit cost reduction is prioritized |
| TLV9064QDRQ1 | Higher 10 MHz GBW, 6.5 V/µs slew rate, but narrower 1.8–6 V supply range and higher 560 µA/channel IQ | Better for high-speed signal chains (e.g., active filter design), unsuitable for direct 12 V/24 V battery interface | Choose TLV9064QDRQ1 only for designs needing bandwidth >1 MHz with regulated low-voltage supplies |
Compared with LM2902BQPWRQ1, LM2902BAQPWRQ1 provides lower offset for improved DC accuracy in sensor front-ends; compared with TLV9064QDRQ1, it trades speed for wider supply range and lower power, making it optimal for robust, low-cost automotive analog signal conditioning.
Availability
LM2902BAQPWRQ1 is available at Aetrix Electronics and suitable for automotive lighting control, battery management system (BMS) monitoring, and telematics control unit (TCU) development requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2902BAQPWRQ1 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 automotive IC design expertise and AEC-Q100 qualification infrastructure.
The LM2902-Q1 family was engineered specifically for cost-sensitive, high-reliability automotive analog signal paths - delivering industry-standard quad op-amp functionality with enhanced ESD, EMI, and thermal robustness for under-hood and cabin applications.
FAQ
What is the maximum operating temperature range for LM2902BAQPWRQ1?
The LM2902BAQPWRQ1 is qualified per AEC-Q100 Grade 1, supporting continuous operation from –40°C to +125°C ambient temperature. This rating is verified across all electrical parameters including input offset voltage, CMRR, and output drive capability, making it suitable for engine compartment and powertrain-mounted applications where thermal stress is extreme.
Does LM2902BAQPWRQ1 support true rail-to-rail input operation?
The LM2902BAQPWRQ1 features a common-mode input voltage range that extends to V– (ground in single-supply use), but does not reach V+. Its valid input range is V– to (V+) – 2 V across the full temperature range. This allows ground-referenced sensor interfaces without level-shifting, though inputs must remain ≥2 V below V+ to maintain specified performance.
Can LM2902BAQPWRQ1 be used with a 3.3 V supply?
Yes, LM2902BAQPWRQ1 operates reliably from 3 V to 36 V, including 3.3 V single-supply configurations. At 3.3 V, it delivers 100 mV output swing above V– and ~1.1 V below V+, with 1.2 MHz GBW preserved. Input common-mode range becomes V– to 1.3 V, accommodating most 3.3 V system sensors and microcontroller I/O levels.
What packaging options are available for LM2902BAQPWRQ1?
LM2902BAQPWRQ1 is offered exclusively in the TSSOP-14 (PW) package: 5 mm × 6.4 mm body, 0.65 mm lead pitch, 1.2 mm maximum height, with a non-electrical thermal pad. This RoHS-compliant, surface-mount package supports automated assembly and provides superior thermal performance versus SOIC-14 in space-constrained automotive modules.
How does the integrated RF filter in LM2902BAQPWRQ1 improve system-level EMC?
The integrated RF and EMI filter in LM2902BAQPWRQ1 attenuates high-frequency interference (e.g., 900 MHz GSM, 2.4 GHz Bluetooth) before it reaches the op-amp input stage, achieving >60 dB EMIRR at 100 MHz. This reduces radiated emissions and improves immunity without requiring external LC filters or shielded enclosures - simplifying layout and lowering system-level validation risk in telematics and ADAS domains.
LM2902BAQPWRQ1 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:
- Standard
- Number of Circuits:
- 4
- Output Type:
- Push-Pull
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1.2 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 300 µV
- Current - Supply:
- 240µA (x4 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-TSSOP
LM2902BAQPWRQ1 FAQ
1.How can I place an order for LM2902BAQPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2902BAQPWRQ1 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 LM2902BAQPWRQ1 reliable?
The price and inventory of LM2902BAQPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2902BAQPWRQ1 is usually 5 days.
3.What payment methods are accepted for LM2902BAQPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2902BAQPWRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2902BAQPWRQ1?
LM2902BAQPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2902BAQPWRQ1 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 LM2902BAQPWRQ1?
For technical support, including LM2902BAQPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2902BAQPWRQ1 requirements.
6.How does Aetrix verify that LM2902BAQPWRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2902BAQPWRQ1 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 LM2902BAQPWRQ1 meets industry standards.
7.What is the process for return or replacement of LM2902BAQPWRQ1?
All LM2902BAQPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2902BAQPWRQ1, 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 LM2902BAQPWRQ1 part is unused and in its original packaging.
Return procedure for LM2902BAQPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2902BAQPWRQ1 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
