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Texas Instruments LM2904AVQDRG4
- Part No.:
- LM2904AVQDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2904AVQDRG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,433
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Product details
Overview
LM2904AVQDRG4 from Texas Instruments is a dual operational amplifier optimized for industrial and automotive applications, featuring rail-to-rail input (including ground), 36V max supply voltage, 300µA/ch quiescent current, 1.2MHz unity-gain bandwidth, and ±2mV input offset voltage (max at 25°C). It operates across –40°C to +125°C and supports single-supply sensing in motor control feedback loops and power supply monitoring circuits.
For engineers reviewing the LM2904AVQDRG4 datasheet, LM2904AVQDRG4 pinout, LM2904AVQDRG4 application, or LM2904AVQDRG4 equivalent, key selection criteria include guaranteed input offset voltage ≤2 mV at 25°C, extended temperature range (–40°C to +125°C), SOIC-8 package compatibility, and integrated EMI/RF filtering for noisy environments.
Technical Context
The LM2904AVQDRG4 belongs to the LM2904BA variant family-distinguished by its ±2mV max input offset voltage at 25°C and full –40°C to +125°C operating range. It uses bipolar input stage architecture with common-mode input voltage extending to V–, enabling direct ground-referenced signal conditioning without level-shifting.
Its internal EMI/RF filter suppresses high-frequency interference, while unity-gain stability and 0.5V/µs slew rate support precision DC-coupled amplification and low-frequency closed-loop configurations such as current-sense amplifiers and voltage comparators with hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 36V - supports wide-input industrial power rails and battery-backed systems without external regulation. |
| Input Offset Voltage (max) | ±2 mV at 25°C - enables accurate low-level signal amplification (e.g., shunt-based current sensing) without trimming. |
| Quiescent Current | 300 µA per amplifier - allows dual op-amp operation in always-on subsystems with minimal standby power impact. |
| Unity-Gain Bandwidth | 1.2 MHz - sufficient for closed-loop response up to ~100 kHz in sensor signal chains and power supply error amplifiers. |
| Common-Mode Input Range | Includes V– (ground) - permits direct interface with grounded sensors (e.g., thermistors, RTDs) and single-supply transducer outputs. |
| ESD Rating (HBM) | ±2000 V - meets IEC 61000-4-2 Level 3 requirements for robustness in industrial assembly and field deployment. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, motor drive control boards, and industrial inverters. |
Pinout & Package
LM2904AVQDRG4 is packaged in an 8-pin SOIC (D package), measuring 4.9 mm × 6.0 mm, with standard lead pitch (1.27 mm) and surface-mount compatibility for automated PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output of Amplifier 1 | Delivers buffered, low-impedance output signal; capable of sourcing/sinking ±20 mA into resistive loads. |
| 2 (IN1–) | Inverting Input of Amp 1 | Accepts feedback or inverted signal path; high-impedance node (input bias current ≤35 nA). |
| 3 (IN1+) | Non-inverting Input of Amp 1 | Accepts reference or sensed signal; common-mode range extends to V– for ground-referenced inputs. |
| 4 (V–) | Negative Supply / Ground | Reference terminal for single-supply operation; must be connected to system ground or lowest potential rail. |
| 5 (IN2+) | Non-inverting Input of Amp 2 | Independent input for second channel; identical electrical characteristics to Pin 3. |
| 6 (IN2–) | Inverting Input of Amp 2 | Independent input for second channel; supports separate feedback networks per amplifier. |
| 7 (OUT2) | Output of Amplifier 2 | Electrically isolated output channel; usable for dual-path signal processing or redundancy. |
| 8 (V+) | Positive Supply | Accepts up to 36V DC; supplies both amplifiers; decoupling capacitor (0.1 µF) recommended near this pin. |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input (to V–) | Enables direct connection to 0 V referenced sensors without level-shifting circuitry or dual supplies. |
| Low input offset voltage (±2 mV max) | Reduces DC error in precision gain stages-critical for current-sense amplifiers and analog front-ends. |
| Integrated EMI/RF filter | Suppresses conducted and radiated noise in electrically harsh environments (e.g., motor drives, inverters). |
| High ESD rating (2 kV HBM) | Eliminates need for external protection diodes in manufacturing and end-use handling. |
| Unity-gain stable | Permits use in buffer, follower, and active filter configurations without external compensation components. |
Applications
| Motor Control Feedback | Industrial Power Supply Monitoring |
|---|---|
Use Scenario: Amplifying voltage across a low-side shunt resistor to measure phase current in a BLDC motor driver. IC Role / Device Role / Timing Role: Precision current-sense amplifier with ground-referenced input and low offset error. Use Value: Enables accurate torque control and overcurrent protection with <2 mV offset-induced error at room temperature. | Use Scenario: Monitoring output voltage deviation in a 24V industrial SMPS using resistive divider and error amplifier. IC Role / Device Role / Timing Role: Dual-channel error amplifier comparing regulated output against reference and driving PWM controller. Use Value: Dual op-amp integration reduces board space and improves thermal tracking between channels. |
| Automotive HVAC Blower Control | AC Inverter Voltage Sensing |
Use Scenario: Conditioning thermistor voltage in cabin temperature feedback loop within automotive HVAC module. IC Role / Device Role / Timing Role: Signal conditioner converting NTC voltage to linearized analog input for MCU ADC. Use Value: Guaranteed –40°C to +125°C operation ensures reliability in engine bay proximity and extreme ambient conditions. | Use Scenario: Scaling high-voltage DC bus (up to 800V) via resistive divider for isolation amplifier input in solar string inverter. IC Role / Device Role / Timing Role: High-impedance buffer isolating divider network from downstream circuitry and reducing loading error. Use Value: Input bias current ≤35 nA minimizes divider current error and improves measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904BQDR | ±3 mV max input offset voltage (25°C); otherwise identical SOIC-8 package and –40°C to +125°C rating. | Suitable where tighter offset is not required-e.g., non-critical comparator hysteresis or general-purpose buffering. | Select LM2904BQDR when cost sensitivity outweighs need for ≤2 mV offset specification. |
| LM358BAIDR | Same ±2 mV offset and 1.2 MHz GBW, but rated only to +85°C ambient; lower ESD (500 V HBM). | Limited to commercial/industrial indoor applications-not qualified for under-hood or high-temp motor control. | Choose LM358BAIDR only for cost-constrained designs operating strictly within 0°C to +85°C ambient. |
Compared with LM2904BQDR and LM358BAIDR, the LM2904AVQDRG4 uniquely combines ±2 mV offset, full automotive-grade temperature range (–40°C to +125°C), and 2 kV HBM ESD protection-making it the only option qualified for precision sensing in high-reliability, thermally demanding systems.
Availability
LM2904AVQDRG4 is available at Aetrix Electronics and suitable for motor control feedback, industrial power supply monitoring, and automotive HVAC blower control requiring stable component supply across extended temperature and long product lifecycles.
Supply support for LM2904AVQDRG4 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 heritage in precision op-amps and industrial-grade signal chain solutions.
The LM2904AVQDRG4 belongs to TI's industry-standard dual op-amp product line, engineered specifically for high-reliability industrial and automotive applications demanding extended temperature operation, low offset, and robust EMI immunity.
FAQ
What is the maximum supply voltage for LM2904AVQDRG4?
The LM2904AVQDRG4 supports a maximum supply voltage of 36 V across V+ to V– terminals. This allows direct integration into 24 V industrial systems and 32 V automotive battery-derived rails without external regulators. Absolute maximum ratings specify ±20 V differential or 40 V total, but recommended operation remains within 3 V to 36 V per datasheet Section 5.3.
Does LM2904AVQDRG4 support single-supply operation with ground-referenced inputs?
Yes, the LM2904AVQDRG4 features rail-to-rail input common-mode range extending to V– (ground), enabling true single-supply operation. Its input stage accepts signals from 0 V up to V+ – 1.5 V, making it ideal for interfacing with grounded sensors like thermistors or shunt resistors without level-shifting circuitry.
What is the input offset voltage specification for LM2904AVQDRG4 at elevated temperature?
The LM2904AVQDRG4 guarantees ±2 mV maximum input offset voltage at 25°C and ±3 mV maximum across its full operating range of –40°C to +125°C. This is confirmed in Section 5.6 of the official datasheet (SLOS068AB), distinguishing it from the standard LM2904B (±3 mV at 25°C, ±4 mV over temperature).
Is LM2904AVQDRG4 pin-compatible with other LM2904 variants in SOIC-8 package?
Yes, the LM2904AVQDRG4 uses the standard 8-pin SOIC (D) footprint and shares identical pin configuration with all LM2904x variants in that package-including LM2904BQDR, LM2904VQDR, and LM2904QDR. No PCB layout changes are required when upgrading from LM2904BQDR to LM2904AVQDRG4.
How does the integrated EMI/RF filter in LM2904AVQDRG4 improve system-level noise immunity?
The LM2904AVQDRG4 incorporates on-die EMI and RF filters that attenuate high-frequency interference (e.g., switching noise from nearby MOSFETs or DC-DC converters) before it reaches the input stage. This eliminates the need for external RC filters in motor control and inverter applications, preserving signal integrity and reducing design iteration cycles.
LM2904AVQDRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- 40 mA
- Voltage - Supply Span (Min):
- 3 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
LM2904AVQDRG4 FAQ
1.How can I place an order for LM2904AVQDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904AVQDRG4 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 LM2904AVQDRG4 reliable?
The price and inventory of LM2904AVQDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904AVQDRG4 is usually 5 days.
3.What payment methods are accepted for LM2904AVQDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904AVQDRG4 transactions.
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4.How is shipping managed for LM2904AVQDRG4?
LM2904AVQDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904AVQDRG4 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 LM2904AVQDRG4?
For technical support, including LM2904AVQDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904AVQDRG4 requirements.
6.How does Aetrix verify that LM2904AVQDRG4 is sourced from the original manufacturer or authorized distributors?
All LM2904AVQDRG4 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 LM2904AVQDRG4 meets industry standards.
7.What is the process for return or replacement of LM2904AVQDRG4?
All LM2904AVQDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LM2904AVQDRG4, 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 LM2904AVQDRG4 part is unused and in its original packaging.
Return procedure for LM2904AVQDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904AVQDRG4 Tags
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