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Texas Instruments LM2904QDRQ1
- Part No.:
- LM2904QDRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2904QDRQ1.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:118
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Product details
Overview
LM2904QDRQ1 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, 1.2 MHz unity-gain bandwidth, rail-to-rail input (including ground), and 3 mV max input offset voltage at 25°C. It serves in sensor signal conditioning, body control modules, and eCall system front-ends where robustness and low power are critical.
For engineers reviewing the LM2904QDRQ1 datasheet, LM2904QDRQ1 pinout, LM2904QDRQ1 application, or LM2904QDRQ1 equivalent, this page delivers verified electrical specs, automotive-grade thermal and ESD performance data, SOIC-8 package mechanical details, and functional alternatives aligned with AEC-Q100 requirements.
Technical Context
The LM2904QDRQ1 implements a bipolar-input op-amp architecture optimized for single-supply operation across harsh automotive environments. Its input stage supports common-mode voltage down to V– (ground), enabling direct interfacing with low-side current-sense shunts and thermistor bridges without level-shifting.
It integrates internal RF/EMI filtering and achieves 56° phase margin at G = +1 with 20 pF load, ensuring stable closed-loop behavior in noisy vehicle subsystems. The device operates over –40°C to +125°C ambient and maintains ≤4 mV offset drift across temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 36 V - supports 12 V and 24 V automotive battery rails with headroom for transients. |
| Quiescent Current / Channel | 300 µA typical - enables always-on sensing circuits without excessive battery drain. |
| Unity-Gain Bandwidth | 1.2 MHz - sufficient for motor position feedback, cabin temperature loop control, and analog front-end filtering. |
| Input Offset Voltage (max) | 3 mV at 25°C - ensures <±0.5% error in 12-bit ADC interfaces with 3.3 V reference. |
| Common-Mode Input Range | Includes V– (ground) - allows direct connection to shunt resistors and grounded sensors. |
| ESD Rating (HBM) | ±2000 V - meets AEC-Q100-002 for handling and board-level reliability in assembly lines. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood and powertrain locations per Grade 1 specification. |
Pinout & Package
LM2904QDRQ1 is supplied in an 8-pin SOIC package (body size 4.90 mm × 3.90 mm), optimized for automated placement and thermal dissipation in automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output | Amplifier 1 output - drives downstream comparators, ADC inputs, or LED drivers. |
| 2 (IN1–) | Negative Input | Inverting input for first op-amp - used in transimpedance, differential, or active filter configurations. |
| 3 (IN1+) | Positive Input | Non-inverting input for first op-amp - connects to sensor references or high-impedance sources. |
| 4 (V–) | Negative Supply | Ground or negative rail - supports true single-supply operation with rail-to-rail input capability. |
| 5 (IN2+) | Positive Input | Non-inverting input for second op-amp - enables dual-path signal conditioning on one die. |
| 6 (IN2–) | Negative Input | Inverting input for second op-amp - allows independent gain/offset adjustment per channel. |
| 7 (OUT2) | Output | Amplifier 2 output - provides redundancy or parallel processing in safety-critical BMS monitoring paths. |
| 8 (V+) | Positive Supply | Main positive rail - accepts up to 36 V, accommodating load-dump transients per ISO 7637-2. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation and automotive ESD stress (HBM ±2 kV, CDM ±1.5 kV). |
| Rail-to-rail input including ground | Enables direct interface with grounded sensors (e.g., NTC thermistors, current shunts) without external biasing. |
| Integrated RF/EMI filter | Reduces susceptibility to AM-band noise and ignition interference in vehicle cabins and engine bays. |
| Functional Safety-Capable documentation | TI provides FIT rate data, failure mode analysis, and diagnostic coverage guidance for ASIL-B system integration. |
| Low quiescent current (300 µA/ch) | Supports always-on functions like intrusion detection or battery state monitoring with minimal standby power impact. |
Applications
| Automotive Lighting Control | Body Electronics Module |
|---|---|
Use Scenario: Regulating LED headlight brightness via PWM-controlled current sink. IC Role / Device Role / Timing Role: Dual op-amp configures as precision current sense amplifier and error integrator in closed-loop dimming circuit. Use Value: 3 mV offset ensures <1% current error at 100 mA; 1.2 MHz GBW supports fast PWM rejection and smooth intensity transitions. | Use Scenario: Monitoring door lock actuator current and window lift motor position feedback. IC Role / Device Role / Timing Role: One amplifier conditions Hall-effect rotor position signal; the other amplifies shunt-based stall detection voltage. Use Value: Rail-to-rail input captures full 0–5 V sensor swing; 300 µA/ch current minimizes module standby consumption. |
| eCall System Front-End | Battery Management System (BMS) |
Use Scenario: Amplifying microphone signal and conditioning accelerometer wake-up trigger in emergency call units. IC Role / Device Role / Timing Role: First op-amp acts as low-noise preamplifier (40 nV/√Hz); second provides hysteresis for motion-triggered activation. Use Value: Integrated EMI filter suppresses RF interference from cellular modem; –40°C to +125°C rating ensures cold-start reliability. | Use Scenario: Measuring cell voltage and pack current in 12S lithium-ion traction batteries. IC Role / Device Role / Timing Role: Dual amplifiers implement isolated voltage monitor and bidirectional current sense amplifier with programmable gain. Use Value: 36 V max supply accommodates full pack voltage; 3 mV offset enables <5 mV measurement accuracy across 4.2 V/cell range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual op-amp applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904BQDRQ1 | Same SOIC-8 package; lower 2 mV max offset (vs. 3 mV); identical supply range and quiescent current. | Suitable for higher-precision sensor front-ends requiring tighter DC accuracy, such as cabin air quality monitors. | Select when offset-critical signal chains demand <2 mV guaranteed performance at 25°C. |
| TSV912IQ2T | 2.7–5.5 V supply only; 8 MHz GBW; rail-to-rail I/O; 170 µA/ch IQ; no AEC-Q100 qualification. | Targeted at infotainment audio preamps or non-safety ADAS camera modules-not for powertrain or chassis systems. | Choose only for low-voltage, high-speed consumer-grade subsystems where automotive qualification is not required. |
Compared with LM2904QDRQ1, LM2904BQDRQ1 improves DC accuracy without layout change, while TSV912IQ2T trades automotive robustness for speed and rail-to-rail output-making it unsuitable for under-hood use but viable in instrument cluster analog stages.
Availability
LM2904QDRQ1 is available at Aetrix Electronics and suitable for automotive lighting control, body electronics modules, and eCall system design requiring stable component supply across extended temperature and long production lifecycles.
Supply support for LM2904QDRQ1 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 delivering analog, embedded processing, and connectivity solutions with deep automotive expertise and broad manufacturing scale.
The LM2904-Q1 family was designed specifically for cost-sensitive, high-reliability automotive signal conditioning-targeting body control, lighting, telematics, and passive safety systems compliant with AEC-Q100 Grade 1.
FAQ
What is the maximum supply voltage rating for LM2904QDRQ1?
The LM2904QDRQ1 has an absolute maximum supply voltage of 40 V, with recommended operating range from 3 V to 36 V. This 36 V upper limit supports 24 V nominal battery systems and accommodates ISO 7637-2 load-dump transients up to ±35 V, making it suitable for engine compartment and chassis applications where voltage spikes occur.
Does LM2904QDRQ1 support single-supply operation with ground-referenced inputs?
Yes, LM2904QDRQ1 supports true single-supply operation: its common-mode input voltage range extends to V– (ground), and output can swing within 1.5 V of V– at light loads. This enables direct interfacing with grounded sensors like thermistors, potentiometers, and current-shunt amplifiers without external level-shifting circuitry.
Is LM2904QDRQ1 qualified for automotive safety applications?
LM2904QDRQ1 is AEC-Q100 Grade 1 qualified and designated Functional Safety-Capable. Texas Instruments provides FIT rate data, failure mode analysis reports, and diagnostic coverage guidance to support ASIL-B system development-but the device itself is not ASIL-certified; system-level validation remains the responsibility of the end designer.
What package type is used for LM2904QDRQ1?
LM2904QDRQ1 is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) with body dimensions of 4.90 mm × 3.90 mm. This surface-mount package supports automated assembly, offers moderate thermal resistance (RθJA = 124.7°C/W), and is compatible with standard automotive PCB reflow profiles.
How does LM2904QDRQ1 compare to LM2904-Q1 in terms of key performance parameters?
LM2904QDRQ1 is the LM2904B-Q1 variant: it improves upon the legacy LM2904-Q1 with lower 3 mV max offset (vs. 7 mV), wider 3–36 V supply range (vs. 3–26 V), 300 µA/ch quiescent current (vs. 350 µA), and integrated RF/EMI filtering-while retaining pin compatibility and SOIC-8 packaging for seamless upgrade in existing designs.
LM2904QDRQ1 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
LM2904QDRQ1 FAQ
1.How can I place an order for LM2904QDRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904QDRQ1 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 LM2904QDRQ1 reliable?
The price and inventory of LM2904QDRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904QDRQ1 is usually 5 days.
3.What payment methods are accepted for LM2904QDRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904QDRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2904QDRQ1?
LM2904QDRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904QDRQ1 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 LM2904QDRQ1?
For technical support, including LM2904QDRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904QDRQ1 requirements.
6.How does Aetrix verify that LM2904QDRQ1 is sourced from the original manufacturer or authorized distributors?
All LM2904QDRQ1 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 LM2904QDRQ1 meets industry standards.
7.What is the process for return or replacement of LM2904QDRQ1?
All LM2904QDRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with LM2904QDRQ1, 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 LM2904QDRQ1 part is unused and in its original packaging.
Return procedure for LM2904QDRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904QDRQ1 Tags
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LM358DT
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LM358DR
Texas Instruments
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LM2904DR
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LM358ADR
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MCP6006T-E/OT
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MCP6006UT-E/OT
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