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Texas Instruments LM2904VQDRG4Q1
- Part No.:
- LM2904VQDRG4Q1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2904VQDRG4Q1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:728
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Product details
Overview
LM2904VQDRG4Q1 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 within 1.5 V of the positive rail and 20 mV of the negative rail at 125°C - deployed in battery management and telematics control units.
For engineers reviewing the LM2904VQDRG4Q1 datasheet, LM2904VQDRG4Q1 pinout, LM2904VQDRG4Q1 application, or LM2904VQDRG4Q1 equivalent, this page delivers verified electrical specs, SOIC-8 package mapping, automotive-grade ESD/EMI resilience, functional safety documentation support, and direct alternative comparisons for production design validation.
Technical Context
The LM2904VQDRG4Q1 implements a bipolar-input dual op-amp architecture with common-mode input voltage range extending to ground and differential input voltage tolerance up to ±32 V. It supports single-supply operation down to 3 V while maintaining stable unity-gain performance and low input offset drift (±3.5 µV/°C max).
Its internal RF/EMI filtering, HBM ±2 kV / CDM ±1.5 kV ESD rating, and functional safety documentation enable robust use in noisy automotive domains - including motor control feedback loops and sensor signal conditioning where input-referred noise (40 nV/√Hz) and THD+N (0.001% at 1 kHz) are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 36 V - enables direct integration into 12 V and 24 V automotive battery systems without external regulation. |
| Quiescent Current per Channel | 300 µA (typical) - supports low-power always-on functions like eCall wake-up monitoring and BMS cell voltage sensing. |
| Unity-Gain Bandwidth | 1.2 MHz - sufficient for closed-loop control in motor drivers and active filter stages up to ~100 kHz. |
| Input Offset Voltage (max) | 3 mV at 25°C - ensures <±10 mV error in 5 V reference-based sensor amplification over full temperature range. |
| Common-Mode Input Range | Includes ground (V–) - allows direct interface with shunt-based current sensing and thermistor networks referenced to chassis ground. |
| Output Swing (V– side) | 20 mV above V– at 125°C - enables accurate zero-volt-referenced signal reconstruction in body electronics modules. |
| ESD Rating (HBM/CDM) | ±2000 V / ±1500 V - meets AEC-Q100-002/-011 requirements for under-hood and infotainment module reliability. |
Pinout & Package
LM2904VQDRG4Q1 is packaged in an 8-pin SOIC (D) with nominal body size 4.90 mm × 3.90 mm, optimized for automated optical inspection and thermal dissipation in automotive PCBs (RθJA = 124.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output | Amplifier 1 output - drives feedback networks or downstream ADC inputs; capable of sourcing/sinking ±20 mA. |
| 2 (IN1–) | Negative Input | Inverting input for channel 1 - accepts differential signals or configured as summing node in multi-sensor interfaces. |
| 3 (IN1+) | Positive Input | Non-inverting input for channel 1 - connects to precision voltage references or grounded sensor elements. |
| 4 (V–) | Negative Supply | Ground or negative rail - supports true single-supply operation; common return for both amplifiers and external circuitry. |
| 5 (IN2+) | Positive Input | Non-inverting input for channel 2 - isolated from channel 1 for independent signal paths in dual-sensor applications. |
| 6 (IN2–) | Negative Input | Inverting input for channel 2 - used in differential-to-single-ended conversion or active filtering stages. |
| 7 (OUT2) | Output | Amplifier 2 output - operates independently; shares V+ and V– rails but maintains >120 dB channel separation. |
| 8 (V+) | Positive Supply | High-side supply rail - accepts up to 36 V; internally regulated for stable biasing across wide battery voltage transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation - eliminates derating calculations for engine bay and powertrain ECUs. |
| Integrated EMI/RF filter | Reduces susceptibility to AM-band interference (0.5–30 MHz) in head unit audio preamps and radar sensor front-ends. |
| Low input offset voltage drift | ±3.5 µV/°C max - limits thermal-induced gain error to <0.5% over full automotive temperature range in precision current sensing. |
| Rail-to-rail output capability | Swings within 20 mV of V– at 125°C - preserves dynamic range in low-voltage microcontroller ADC interfaces (e.g., 3.3 V SAR converters). |
| Functional safety documentation | Available FIT rate, failure mode analysis, and diagnostic coverage guidance - accelerates ISO 26262 ASIL-B system certification. |
Applications
| Automotive Battery Management System (BMS) | Telematics Control Unit (TCU) |
|---|---|
Use Scenario: Monitoring individual cell voltages and pack current in 48 V mild-hybrid battery stacks using precision shunt amplifiers and voltage dividers. IC Role / Device Role / Timing Role: Dual op-amp performs simultaneous high-side current sensing (channel 1) and low-side cell voltage buffering (channel 2) with shared supply and ground. Use Value: 3 mV max offset ensures ≤10 mV absolute error in 5 V full-scale cell measurement; 300 µA quiescent current minimizes standby drain on auxiliary battery. |
Use Scenario: Conditioning analog signals from GNSS antennas, IMU sensors, and CAN transceiver status lines before digitization by host MCU. IC Role / Device Role / Timing Role: Channel 1 filters GPS L1 band harmonics; channel 2 buffers accelerometer outputs with ground-referenced common-mode range. Use Value: Integrated EMI filter suppresses cellular/LTE noise coupling; rail-to-rail output drives 3.3 V ADC without level-shifting components. |
| Electric Vehicle On-Board Charger (OBC) | Automotive Lighting Control Module |
Use Scenario: Closed-loop regulation of AC-DC PFC stage and DC-DC isolation stage via voltage/current error amplifiers in bidirectional OBC designs. IC Role / Device Role / Timing Role: One amplifier compares sensed output voltage against reference; second compares inductor current against ramp signal for peak-current mode control. Use Value: 1.2 MHz GBW supports >100 kHz loop bandwidth; ±32 V differential input withstands transient spikes during MOSFET switching. |
Use Scenario: Linear LED driver feedback and ambient light sensor signal conditioning in adaptive headlight modules. IC Role / Device Role / Timing Role: Channel 1 amplifies photodiode current; channel 2 compares dimming command voltage against LED string sense voltage. Use Value: Common-mode input to ground enables direct photodiode connection; 20 mV V–-side swing ensures full brightness control at low duty cycles. |
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 300 µA IQ and 1.2 MHz GBW, but 3 mV VOS max (vs. LM2904VQDRG4Q1's 3 mV spec) - no functional distinction. | Identical AEC-Q100 Grade 1 qualification and automotive temp range - interchangeable in all LM2904VQDRG4Q1 use cases. | Select when standard TI part numbering (no "V" suffix) is required for procurement alignment or legacy BOM continuity. |
| LM2904BAQDRQ1 | Same footprint and pinout; lower 2 mV VOS max (vs. 3 mV), same 300 µA IQ and 1.2 MHz GBW - improved DC accuracy at no speed/power cost. | Also AEC-Q100 Grade 1 qualified; preferred for high-precision BMS cell balancing or torque sensor signal chains requiring tighter offset tolerance. | Choose when <2 mV offset is mandatory; verify layout compatibility since VSSOP/TSSOP variants exist - SOIC-8 variant confirmed available. |
Compared with LM2904VQDRG4Q1, LM2904BQDRQ1 offers identical performance and qualification for drop-in replacement, while LM2904BAQDRQ1 delivers superior DC accuracy (2 mV vs. 3 mV VOS) with no trade-off in bandwidth or power - making it optimal for precision automotive sensing where offset error directly impacts ASIL compliance margins.
Availability
LM2904VQDRG4Q1 is available at Aetrix Electronics and suitable for automotive lighting, battery management systems, and telematics control units requiring stable component supply across extended product lifecycles and rigorous environmental qualification.
Supply support for LM2904VQDRG4Q1 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.
LM2904VQDRG4Q1 belongs to TI's automotive-qualified op-amp portfolio, engineered specifically for signal conditioning in harsh-temperature, high-EMI environments such as powertrain, chassis, and ADAS subsystems.
FAQ
What automotive qualification does LM2904VQDRG4Q1 meet?
LM2904VQDRG4Q1 is AEC-Q100 qualified for Grade 1 operation (–40°C to +125°C ambient), with HBM ±2000 V and CDM ±1500 V ESD ratings. It includes functional safety documentation supporting ISO 26262 ASIL-B system development - verified per TI's SLOS414K datasheet revision K (April 2022). The LM2904VQDRG4Q1 device undergoes stress testing for humidity, temperature cycling, and mechanical shock per automotive standards.
Does LM2904VQDRG4Q1 support single-supply operation?
Yes, LM2904VQDRG4Q1 supports true single-supply operation from 3 V to 36 V, with common-mode input voltage range extending to the negative rail (V–) and output swing within 20 mV of V– at 125°C. This enables direct interfacing with ground-referenced sensors like thermistors and current shunts without level-shifting circuitry - confirmed in Section 7.5 of the LM2904VQDRG4Q1 datasheet.
What is the maximum supply voltage for LM2904VQDRG4Q1?
The absolute maximum supply voltage for LM2904VQDRG4Q1 is 40 V, but the recommended operating range is 3 V to 36 V per Section 7.3 of the datasheet. Operation above 36 V risks exceeding safe junction temperature or violating absolute maximum ratings - particularly under high ambient conditions or heavy load. TI specifies 36 V as the upper limit for continuous reliable operation across –40°C to +125°C.
How does LM2904VQDRG4Q1 differ from LM2904-Q1?
LM2904VQDRG4Q1 is a variant of the LM2904B-Q1 family (not the base LM2904-Q1), featuring 300 µA quiescent current (vs. 350 µA for LM2904-Q1), 1.2 MHz GBW (vs. 0.7 MHz), 3 mV max VOS (vs. 7 mV), and integrated EMI filtering. It shares the same SOIC-8 package and AEC-Q100 Grade 1 qualification but delivers higher precision and noise immunity - documented in TI's Device Comparison Table (Section 5, SLOS414K).
Is LM2904VQDRG4Q1 pin-compatible with other LM2904-Q1 series devices?
Yes, LM2904VQDRG4Q1 uses the standard 8-pin SOIC (D) package with identical pin configuration to LM2904BQDRQ1, LM2904BAQDRQ1, and LM2904-Q1 - verified in Figure 6-1 and Table 6-1 of the SLOS414K datasheet. All share the same V+, IN1+, IN1–, OUT1, IN2+, IN2–, OUT2, V– pinout order and electrical behavior, enabling direct PCB-level substitution where specifications align.
LM2904VQDRG4Q1 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:
- -
- Slew Rate:
- 0.3V/µs
- Gain Bandwidth Product:
- 700 kHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 20 nA
- Voltage - Input Offset:
- 3 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-SOIC
LM2904VQDRG4Q1 FAQ
1.How can I place an order for LM2904VQDRG4Q1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904VQDRG4Q1 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 LM2904VQDRG4Q1 reliable?
The price and inventory of LM2904VQDRG4Q1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904VQDRG4Q1 is usually 5 days.
3.What payment methods are accepted for LM2904VQDRG4Q1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904VQDRG4Q1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2904VQDRG4Q1?
LM2904VQDRG4Q1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904VQDRG4Q1 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 LM2904VQDRG4Q1?
For technical support, including LM2904VQDRG4Q1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904VQDRG4Q1 requirements.
6.How does Aetrix verify that LM2904VQDRG4Q1 is sourced from the original manufacturer or authorized distributors?
All LM2904VQDRG4Q1 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 LM2904VQDRG4Q1 meets industry standards.
7.What is the process for return or replacement of LM2904VQDRG4Q1?
All LM2904VQDRG4Q1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2904VQDRG4Q1, 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 LM2904VQDRG4Q1 part is unused and in its original packaging.
Return procedure for LM2904VQDRG4Q1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904VQDRG4Q1 Tags
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LM358DT
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