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Texas Instruments LM2904AVQPWRQ1
- Part No.:
- LM2904AVQPWRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2904AVQPWRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:8,438
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Product details
Overview
LM2904AVQPWRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified dual operational amplifier for automotive systems, featuring 3 V to 36 V supply range, 300 µA per-channel quiescent current (typical), 1.2 MHz unity-gain bandwidth, and rail-to-rail output swing near ground-enabling direct battery-sensing and sensor signal conditioning in body electronics and telematics control units.
For engineers reviewing the LM2904AVQPWRQ1 datasheet, LM2904AVQPWRQ1 pinout, LM2904AVQPWRQ1 application, or LM2904AVQPWRQ1 equivalent, key selection criteria include its automotive-grade ESD robustness (±2 kV HBM, ±1.5 kV CDM), integrated RF/EMI filtering, low 2 mV max input offset voltage at 25°C, and compatibility with single-supply operation down to 3 V.
Technical Context
The LM2904AVQPWRQ1 implements a bipolar-input op-amp architecture optimized for stability across wide supply ranges (3–36 V) and temperature (–40°C to +125°C), with common-mode input range extending to the negative rail. Its internal compensation ensures unity-gain stability without external components.
It delivers 0.5 V/µs slew rate, 70–140 V/mV open-loop gain, and 56° phase margin at G = +1 with 10 kΩ load and 20 pF capacitive load-supporting precision DC-coupled amplification and low-distortion signal conditioning in safety-critical automotive subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 36 V - supports direct connection to 12 V/24 V automotive batteries and wide-input power rails |
| Input Offset Voltage (max) | 2 mV at 25°C - enables accurate low-level sensor signal amplification without calibration |
| Quiescent Current / Channel | 300 µA typical - reduces system power consumption in always-on modules like eCall and BMS monitors |
| Unity-Gain Bandwidth | 1.2 MHz - sufficient for motor current sensing, battery voltage monitoring, and audio pre-amplification |
| Common-Mode Input Range | Includes V– (ground) - allows direct interfacing with shunt-based current sensors and grounded thermistors |
| ESD Rating (HBM/CDM) | ±2000 V / ±1500 V - meets automotive board-level ESD immunity requirements per ISO 10605 |
| Output Swing (to rail) | 100 mV above V– and 1.35 V below V+ at 50 µA - maximizes dynamic range in single-supply configurations |
Pinout & Package
TSSOP-8 package (3.00 mm × 4.40 mm), surface-mount, lead-free, RoHS-compliant, designed for high-density automotive PCB layouts with thermal performance validated per RθJA = 171.7°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output of Amplifier 1 | Drives feedback networks or downstream analog stages; capable of sourcing/sinking ±20 mA |
| 2 (IN1–) | Inverting Input of Amp 1 | Accepts differential or single-ended signals; high common-mode rejection up to 100 dB |
| 3 (IN1+) | Non-inverting Input of Amp 1 | Direct interface to grounded sensors; supports rail-to-rail input common-mode range |
| 4 (V–) | Negative Supply / Ground | Reference node for single-supply operation; must be low-impedance to minimize noise coupling |
| 5 (IN2+) | Non-inverting Input of Amp 2 | Independent channel for dual-path signal processing (e.g., voltage + current sensing) |
| 6 (IN2–) | Inverting Input of Amp 2 | Configurable for transimpedance, difference, or comparator applications |
| 7 (OUT2) | Output of Amplifier 2 | Electrically isolated from OUT1; supports independent gain/feedback configuration |
| 8 (V+) | Positive Supply | Accepts up to 36 V; internal protection prevents latch-up during load-dump transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation in engine bay and cabin modules |
| Integrated RF and EMI filter | Suppresses high-frequency noise from switching regulators and CAN bus interference |
| Functional Safety-Capable documentation | Supports ISO 26262 ASIL-B system-level analysis with FIT rate and failure mode reports |
| Low input bias current (±10 nA typ) | Minimizes error in high-impedance sensor interfaces such as thermocouples and pH electrodes |
| Unity-gain stable with capacitive loads ≤100 pF | Eliminates need for external compensation in compact PCB layouts with long traces |
Applications
| Automotive Lighting Control | Body Electronics Module |
|---|---|
Use Scenario: Regulating LED headlamp brightness via PWM-controlled current sense feedback. IC Role / Device Role / Timing Role: Dual op-amp configures one channel as current-sense amplifier and the other as comparator for overcurrent shutdown. Use Value: 2 mV max VOS ensures <1% current-sense error across temperature; rail-to-rail output drives MOSFET gate directly. | Use Scenario: Monitoring door lock actuator position using potentiometer feedback in smart entry systems. IC Role / Device Role / Timing Role: Single-supply buffer and level-shifter for analog position signal before ADC sampling. Use Value: Common-mode input range to V– enables direct connection to grounded potentiometer wiper; 300 µA IQ extends battery life in sleep mode. |
| Telematics Control Unit (TCU) | Battery Management System (BMS) |
Use Scenario: Conditioning GNSS antenna LNA bias voltage and GPS baseband signal in vehicle navigation units. IC Role / Device Role / Timing Role: Low-noise amplifier stage with integrated EMI filtering to reject cellular and Wi-Fi interference. Use Value: ±1500 V CDM rating protects against assembly-line ESD; 1.2 MHz GBW preserves GPS signal integrity up to 1.575 GHz harmonics. | Use Scenario: Measuring cell voltage and pack current in 12S lithium-ion traction battery packs. IC Role / Device Role / Timing Role: Precision differential amplifier for shunt-based current sensing and voltage divider scaling. Use Value: 36 V absolute max supply withstands load-dump transients; 70–140 V/mV AOL ensures <0.1% gain error in closed-loop configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904BQPWRQ1 | 3 mV max VOS (vs. 2 mV), otherwise identical specs and pinout | Suitable where tighter offset not required; lower cost in high-volume production | Select when 2 mV offset is unnecessary and BOM cost optimization is prioritized |
| TSV912AQDRQ1 | Rail-to-rail input/output, 8 MHz GBW, higher 1.1 mA IQ, SOIC-8 only | Better for high-speed signal chains (e.g., ADAS camera front-end), less suitable for ultra-low-power BMS monitoring | Choose when bandwidth >1.2 MHz and rail-to-rail input are mandatory, accepting higher quiescent current |
Compared with LM2904BQPWRQ1, LM2904AVQPWRQ1 offers superior DC accuracy for precision sensing; compared with TSV912AQDRQ1, it trades bandwidth and rail-to-rail input for significantly lower power and broader supply tolerance-making it optimal for cost-sensitive, low-power automotive analog front-ends.
Availability
LM2904AVQPWRQ1 is available at Aetrix Electronics and suitable for automotive lighting, body electronics, and telematics control units requiring stable component supply under AEC-Q100 compliance and extended temperature operation.
Supply support for LM2904AVQPWRQ1 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 deep expertise in automotive-grade IC design and functional safety certification.
The LM2904-Q1 family was developed specifically for automotive signal conditioning applications demanding AEC-Q100 qualification, ESD resilience, and long-term reliability in harsh environments-from infotainment to powertrain control.
FAQ
What automotive qualification does LM2904AVQPWRQ1 meet?
LM2904AVQPWRQ1 is AEC-Q100 qualified for Grade 1 operation (–40°C to +125°C ambient), with HBM ESD classification Level 2 (±2000 V) and CDM classification C5 (±1500 V). It also includes functional safety documentation to support ISO 26262 ASIL-B system integration. These qualifications are verified per TI's production test flow and documented in the official LM2904BA-Q1 datasheet revision K.
What is the maximum supply voltage for LM2904AVQPWRQ1?
The absolute maximum supply voltage for LM2904AVQPWRQ1 is 40 V, but the recommended operating range is 3 V to 36 V. This 36 V upper limit enables direct use with 24 V commercial vehicle systems and withstands ISO 7637-2 load-dump transients when properly clamped. Operation beyond 36 V risks parametric degradation and is not supported per TI's recommended conditions.
Does LM2904AVQPWRQ1 support single-supply operation?
Yes, LM2904AVQPWRQ1 fully supports true single-supply operation: its common-mode input voltage range extends to the negative rail (V–), and its output swings within 100 mV of V– and ~1.35 V of V+ at light loads. This allows direct interfacing with grounded sensors and microcontroller ADCs referenced to the same supply-no level-shifting circuitry required.
How does the EMI filter in LM2904AVQPWRQ1 improve system robustness?
The integrated RF and EMI filter in LM2904AVQPWRQ1 attenuates high-frequency noise (typically 100 MHz–1 GHz) induced by switching power supplies, CAN transceivers, and wireless modules. This reduces susceptibility to conducted emissions and improves signal integrity in noisy automotive environments-verified by TI's EMC testing per CISPR 25 Class 5. The filter is internal and requires no external components.
Is LM2904AVQPWRQ1 pin-compatible with LM2904-Q1 or LM2904B-Q1?
Yes, LM2904AVQPWRQ1 is pin-compatible with LM2904-Q1 and LM2904B-Q1 in the TSSOP-8 (PW) package. All share identical pinout, footprint, and thermal pad configuration. However, LM2904AVQPWRQ1 is the LM2904BA-Q1 variant-offering improved 2 mV max VOS and enhanced ESD ratings over the base LM2904-Q1, while maintaining full electrical and mechanical interchangeability.
LM2904AVQPWRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- Output Type:
- -
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 700 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 1 mV
- Current - Supply:
- 500µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 26 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
LM2904AVQPWRQ1 FAQ
1.How can I place an order for LM2904AVQPWRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904AVQPWRQ1 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 LM2904AVQPWRQ1 reliable?
The price and inventory of LM2904AVQPWRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904AVQPWRQ1 is usually 5 days.
3.What payment methods are accepted for LM2904AVQPWRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904AVQPWRQ1 transactions.
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4.How is shipping managed for LM2904AVQPWRQ1?
LM2904AVQPWRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904AVQPWRQ1 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 LM2904AVQPWRQ1?
For technical support, including LM2904AVQPWRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904AVQPWRQ1 requirements.
6.How does Aetrix verify that LM2904AVQPWRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2904AVQPWRQ1 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 LM2904AVQPWRQ1 meets industry standards.
7.What is the process for return or replacement of LM2904AVQPWRQ1?
All LM2904AVQPWRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2904AVQPWRQ1, 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 LM2904AVQPWRQ1 part is unused and in its original packaging.
Return procedure for LM2904AVQPWRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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