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Texas Instruments LM2904BTQDRQ1
- Part No.:
- LM2904BTQDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2904BTQDRQ1.pdf
- Description:
- IC POWER
- Quantity:
- Payment:
- Shipping:
Inventory:5,955
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Product details
Overview
LM2904BTQDRQ1 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 input common-mode range including ground-enabling direct low-side current sensing in battery management and brake control circuits.
For engineers reviewing the LM2904BTQDRQ1 datasheet, LM2904BTQDRQ1 pinout, LM2904BTQDRQ1 application, or LM2904BTQDRQ1 equivalent, this page delivers verified electrical specs, SOIC-8 package details, automotive-grade ESD robustness (±2 kV HBM, ±1.5 kV CDM), functional safety documentation support, and validated alternatives for body electronics and eCall system design.
Technical Context
The LM2904BTQDRQ1 implements a dual high-voltage op-amp architecture with independent input stages optimized for single-supply operation down to 3 V. Its input stage supports common-mode voltage down to V–, enabling ground-referenced signal conditioning without level-shifting circuitry.
It integrates internal RF/EMI filtering and achieves unity-gain stability with capacitive loads up to 100 pF. The device operates across –40°C to +125°C ambient, with input offset voltage ≤3 mV (max at 25°C) and drift of ±3.5–12 µV/°C over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3 V to 36 V - supports wide automotive battery range including cold-crank (≥4.5 V) and load-dump (≤40 V absolute max) conditions. |
| Quiescent Current | 300 µA per channel (typical) - enables always-on sensor interfaces in low-power telematics modules. |
| Unity-Gain Bandwidth | 1.2 MHz - sufficient for DC–100 kHz signal conditioning in motor current feedback and cabin temperature sensing. |
| Input Offset Voltage | ≤3 mV (max at 25°C), ≤4 mV (–40°C to +125°C) - ensures <0.1% error in 12-bit ADC front-ends with 3.3 V reference. |
| Common-Mode Input Range | Includes V– (ground) - allows direct connection to shunt resistors in high-side or low-side current monitoring without biasing. |
| ESD Rating | HBM ±2000 V, CDM ±1500 V - meets AEC-Q100-002/-011 for robustness in assembly and vehicle-level EMI environments. |
| Output Drive | ±20 mA short-circuit current - drives 10 kΩ loads with <1.5 V headroom from rails, supporting analog output stages in HVAC actuators. |
Pinout & Package
LM2904BTQDRQ1 is packaged in an 8-pin SOIC (D) with body size 4.90 mm × 3.90 mm, rated for surface-mount reflow and automotive under-hood thermal cycling (–40°C to +125°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Amplifier 1 output | Drives feedback network or downstream ADC buffer; capable of sourcing/sinking ±20 mA. |
| 2 (IN1–) | Amplifier 1 inverting input | Accepts differential or single-ended signals; high common-mode rejection (>100 dB) minimizes noise coupling. |
| 3 (IN1+) | Amplifier 1 non-inverting input | Direct connection to sensor outputs (e.g., thermistor divider) without level shift required. |
| 4 (V–) | Negative supply / ground | Reference node for single-supply operation; must be low-impedance path to minimize ground bounce in multi-channel systems. |
| 5 (IN2+) | Amplifier 2 non-inverting input | Independent channel for redundant sensing or dual-signal processing (e.g., voltage + current in BMS). |
| 6 (IN2–) | Amplifier 2 inverting input | Supports precision gain-setting with matched external resistors; input bias current ≤35 nA reduces resistor-induced error. |
| 7 (OUT2) | Amplifier 2 output | Configurable as comparator, integrator, or active filter stage; stable with 100 pF capacitive load. |
| 8 (V+) | Positive supply | Accepts unregulated 5 V–36 V input; internal regulation not required due to wide PSRR (≥100 dB at DC). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation in engine bay and chassis-mounted ECUs. |
| Integrated RF/EMI filter | Suppresses >100 MHz noise from switching regulators and CAN transceivers without external ferrites. |
| Functional Safety-Capable | Documentation available (ISO 26262 ASIL-B support) for use in safety-related subsystems like brake assist. |
| Rail-to-rail input common-mode range | Enables direct interface to 0 V–referenced sensors (e.g., shunt-based current monitors) without external bias. |
| Low quiescent current (300 µA/ch) | Reduces standby power in always-on domains such as emergency call (eCall) wake-up circuitry. |
| Unity-gain stable | Eliminates need for external compensation in voltage follower, active filter, and transimpedance configurations. |
Applications
| Automotive Lighting Control | Body Electronics Module |
|---|---|
Use Scenario: Regulating LED headlamp brightness via PWM-controlled current sense amplifier. IC Role / Device Role / Timing Role: Dual op-amp configures one channel as current-sense amplifier (low-side shunt), second as comparator for overcurrent shutdown. Use Value: 3 mV max offset ensures <1% current measurement error at 1 A; 36 V rating withstands load-dump transients. |
Use Scenario: Signal conditioning for door lock actuator position feedback and window lift motor current monitoring. IC Role / Device Role / Timing Role: One amplifier buffers potentiometer output; second amplifies shunt voltage for closed-loop motor control. Use Value: Rail-to-rail input enables direct 0–5 V sensor interfacing; 300 µA/ch current extends battery life in key-off mode. |
| Telematics Control Unit | Battery Management System (BMS) |
Use Scenario: Analog front-end for GNSS antenna LNA bias control and cellular modem PA monitor. IC Role / Device Role / Timing Role: Configured as precision voltage reference buffer and RF detector amplifier with integrated EMI filtering. Use Value: ±2 kV HBM/±1.5 kV CDM ESD rating prevents field failures during module handling and vehicle integration. |
Use Scenario: Cell voltage monitoring and pack current sensing in 12S lithium-ion traction battery packs. IC Role / Device Role / Timing Role: Dual channel performs isolated cell voltage scaling and bidirectional shunt current amplification. Use Value: Common-mode input to ground allows direct connection to bottom-cell shunts; 1.2 MHz GBW supports fast fault detection (<10 µs overload recovery). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904BQDRQ1 | Same SOIC-8 package, identical electrical specs, but lacks "T" in part number indicating tape-and-reel packaging variant. | No functional difference; suitable for same PCB layout and automotive qualification scope. | Select LM2904BQDRQ1 only if standard reel packaging suffices and LM2904BTQDRQ1 tape orientation is not required for pick-and-place. |
| LM2904BAQDRQ1 | Lower max input offset voltage (2 mV vs 3 mV), otherwise identical pinout, supply range, and thermal specs. | Better suited for high-precision BMS cell voltage monitoring where <0.05% offset error is critical. | Choose LM2904BAQDRQ1 when tighter offset spec justifies potential cost premium; no layout change needed. |
Compared with LM2904BTQDRQ1, LM2904BQDRQ1 offers identical performance in a standard reel format, while LM2904BAQDRQ1 delivers improved DC accuracy for precision sensing-both retain full AEC-Q100 Grade 1 qualification and SOIC-8 compatibility without PCB redesign.
Availability
LM2904BTQDRQ1 is available at Aetrix Electronics and suitable for automotive lighting, body electronics, and telematics control unit designs requiring stable component supply across extended temperature and long product lifecycles.
Supply support for LM2904BTQDRQ1 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 AEC-Q100 qualification.
The LM2904-Q1 family was developed specifically for cost-sensitive, high-reliability automotive signal conditioning-delivering industry-standard op-amp functionality with enhanced ESD, EMI resilience, and extended temperature operation.
FAQ
What is the maximum supply voltage rating for LM2904BTQDRQ1?
The LM2904BTQDRQ1 has an absolute maximum supply voltage (VS = V+ – V–) of 40 V, with recommended operating range from 3 V to 36 V. This allows safe operation during automotive load-dump events (up to 36 V typical, 40 V absolute max) while maintaining specified performance across –40°C to +125°C ambient.
Does LM2904BTQDRQ1 support single-supply operation with ground-referenced inputs?
Yes, LM2904BTQDRQ1 supports true single-supply operation: its common-mode input voltage range includes V– (ground), enabling direct connection to shunt resistors, thermistors, or other 0 V–referenced sensors without external bias networks or level-shifting circuitry.
Is LM2904BTQDRQ1 qualified for automotive safety applications?
LM2904BTQDRQ1 is AEC-Q100 Grade 1 qualified and designated Functional Safety-Capable. TI provides documentation-including failure modes, diagnostic coverage analysis, and FIT rate data-to support ISO 26262 ASIL-B system-level development for applications like brake control and eCall.
What package type and dimensions does LM2904BTQDRQ1 use?
LM2904BTQDRQ1 uses the SOIC-8 (D) package with nominal body dimensions of 4.90 mm × 3.90 mm and standard 1.27 mm lead pitch. It is RoHS-compliant, halogen-free, and qualified for automotive reflow profiles per J-STD-020.
How does the EMI/RF filtering in LM2904BTQDRQ1 improve system robustness?
The integrated RF and EMI filter in LM2904BTQDRQ1 attenuates high-frequency noise (>100 MHz) from switching power supplies, CAN bus transceivers, and RF modules-reducing susceptibility without requiring external ferrite beads or RC filters, thereby simplifying layout and improving signal integrity in dense automotive PCBs.
LM2904BTQDRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 2
- 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:
- 300µA (x2 Channels)
- Current - Output / Channel:
- 30 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 3 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM2904BTQDRQ1 FAQ
1.How can I place an order for LM2904BTQDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904BTQDRQ1 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 LM2904BTQDRQ1 reliable?
The price and inventory of LM2904BTQDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904BTQDRQ1 is usually 5 days.
3.What payment methods are accepted for LM2904BTQDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904BTQDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2904BTQDRQ1?
LM2904BTQDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904BTQDRQ1 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 LM2904BTQDRQ1?
For technical support, including LM2904BTQDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904BTQDRQ1 requirements.
6.How does Aetrix verify that LM2904BTQDRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2904BTQDRQ1 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 LM2904BTQDRQ1 meets industry standards.
7.What is the process for return or replacement of LM2904BTQDRQ1?
All LM2904BTQDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2904BTQDRQ1, 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 LM2904BTQDRQ1 part is unused and in its original packaging.
Return procedure for LM2904BTQDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904BTQDRQ1 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
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LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
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LM324PWR
Texas Instruments
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LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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