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Texas Instruments LM2904VQDRG4
- Part No.:
- LM2904VQDRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
LM2904VQDRG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,388
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Product details
Overview
LM2904VQDRG4 from Texas Instruments is a dual operational amplifier optimized for industrial and automotive applications requiring wide supply range (3 V to 30 V), low quiescent current (350 µA/ch typical), and extended temperature operation (–40°C to +125°C). It features rail-to-rail input (including ground), 0.7 MHz gain-bandwidth product, and 3 mV max input offset voltage at 25°C - enabling precision signal conditioning in motor control feedback loops and power supply monitoring circuits.
For engineers reviewing the LM2904VQDRG4 datasheet, LM2904VQDRG4 pinout, LM2904VQDRG4 application, or LM2904VQDRG4 equivalent, key selection criteria include its SOIC-8 package compatibility, guaranteed performance across –40°C to +125°C, input common-mode range extending to V–, and suitability for single-supply sensor interface and voltage regulation circuits where cost-sensitive reliability is critical.
Technical Context
The LM2904VQDRG4 implements a bipolar input stage with internal EMI/RF filtering, supporting stable operation in electrically noisy environments such as motor drives and industrial inverters. Its unity-gain stable architecture allows direct use in buffer, comparator (with hysteresis), and transimpedance configurations without external compensation.
Designed for single- or split-supply operation, it delivers rail-to-rail input capability (V– to V+ – 1.5 V) and output swing within 20 mV of V– and 1.5 V of V+ (at 5 mA load), making it suitable for low-voltage sensing and analog front-end stages in embedded control systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3 V to 30 V - supports 5 V, 12 V, and 24 V industrial rails without external regulators |
| Input Offset Voltage (max, 25°C) | ±3 mV - enables accurate DC-coupled amplification in current-sense and temperature-sensor circuits |
| Gain-Bandwidth Product | 0.7 MHz - sufficient for closed-loop bandwidths up to ~100 kHz in gain-of-10 configurations |
| Quiescent Current (per channel) | 350 µA typical - reduces system-level power consumption in always-on monitoring functions |
| Operating Temperature Range | –40°C to +125°C - qualified for under-hood automotive and industrial motor-control environments |
| Input Common-Mode Range | V– to (V+ – 1.5 V) - allows direct ground-referenced signal acquisition without level-shifting |
| Output Voltage Swing (V– side) | As low as 5 mV above V– at 1 mA load - supports low-side current sensing with minimal headroom loss |
Pinout & Package
LM2904VQDRG4 is housed in an 8-pin SOIC (D) package measuring 4.9 mm × 6.0 mm, with standard JEDEC MS-012AC footprint and gull-wing leads for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Amplifier 1 output | Drives feedback networks or downstream ADC inputs; capable of sourcing/sinking ±20 mA |
| 2 (IN1–) | Inverting input of Amp 1 | Accepts differential or single-ended signals; high common-mode rejection (65 dB min) |
| 3 (IN1+) | Non-inverting input of Amp 1 | Direct connection to ground-referenced sensors; includes EMI/RF filtering |
| 4 (V–) | Negative supply / ground reference | Serves as circuit common in single-supply designs; supports rail-to-rail input down to this node |
| 5 (IN2+) | Non-inverting input of Amp 2 | Independent second channel for auxiliary signal paths (e.g., reference buffering) |
| 6 (IN2–) | Inverting input of Amp 2 | Configurable for summing, difference, or active filtering without cross-talk |
| 7 (OUT2) | Amplifier 2 output | Provides isolated second gain stage; identical electrical specs to OUT1 |
| 8 (V+) | Positive supply | Accepts up to 30 V; internal protection limits damage during transient overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input (to V–) | Enables direct interfacing with 0 V-referenced sensors (e.g., shunt-based current monitors) without external biasing |
| Integrated EMI/RF filter | Reduces susceptibility to conducted noise in motor-drive and switching-power-supply environments |
| Extended temperature rating | Validated operation from –40°C to +125°C ensures reliability in engine control units and industrial PLCs |
| Low input bias current (20 nA typ) | Minimizes error in high-impedance source applications such as thermistor or photodiode interfaces |
| Unity-gain stable | Eliminates need for external compensation components in buffer, follower, or gain-of-1 configurations |
Applications
| Motor Control Feedback | Power Supply Monitoring |
|---|---|
|
Use Scenario: Amplifying voltage across a low-side shunt resistor in a brushed DC motor driver. IC Role / Device Role / Timing Role: Dual op-amp configured as two independent current-sense amplifiers - one per H-bridge leg. Use Value: Input common-mode range to V– enables accurate measurement at 0 V potential; 3 mV offset ensures <1% error at 100 mV sense voltage. |
Use Scenario: Scaling and conditioning output voltage feedback signals in a 24 V offline AC/DC adapter. IC Role / Device Role / Timing Role: Precision voltage divider buffer and error amplifier input stage in isolated feedback loop. Use Value: 0.7 MHz GBW supports fast transient response; 350 µA quiescent current minimizes no-load losses. |
| Industrial Sensor Interface | Automotive HVAC Control |
|
Use Scenario: Conditioning analog outputs from RTD or thermistor-based temperature sensors in factory automation nodes. IC Role / Device Role / Timing Role: Programmable-gain amplifier and low-pass filter front end feeding a 12-bit SAR ADC. Use Value: Rail-to-rail input accommodates 0–5 V sensor spans; 65 dB CMRR rejects common-mode noise on long sensor cables. |
Use Scenario: Signal conditioning for cabin temperature and blower motor speed feedback in vehicle climate modules. IC Role / Device Role / Timing Role: Dual-channel amplifier handling both NTC thermistor voltage division and PWM-derived tachometer signal conditioning. Use Value: –40°C to +125°C rating matches AEC-Q100 Grade 2 requirements; SOIC-8 package supports reflow-compatible manufacturing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904DR | Same SOIC-8 package; identical electrical specs but rated only to +105°C ambient (not +125°C) | Limited to commercial/industrial environments without extreme thermal stress | Select when full automotive-grade temperature range is not required and cost optimization is prioritized |
| LM2904BQDR | Enhanced version with 1.2 MHz GBW, 300 µA/ch IQ, and ±2 mV offset (BA variant); same SOIC-8 footprint | Supports higher-bandwidth control loops and lower-offset precision needs (e.g., battery management) | Choose for next-generation designs needing improved speed and accuracy without PCB layout change |
Compared with LM2904VQDRG4, LM2904DR offers cost savings but sacrifices high-temperature robustness, while LM2904BQDR delivers superior bandwidth and offset performance at slightly higher unit cost - both retain pin compatibility and simplify design migration.
Availability
LM2904VQDRG4 is available at Aetrix Electronics and suitable for motor control feedback, power supply monitoring, industrial sensor interface, and automotive HVAC control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for LM2904VQDRG4 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 experience delivering high-reliability, industry-standard ICs for automotive, industrial, and consumer markets.
The LM2904V series belongs to TI's legacy dual op-amp product line designed specifically for cost-sensitive, high-volume applications demanding ruggedness, wide supply range, and guaranteed operation across harsh environmental conditions.
FAQ
What is the maximum supply voltage for LM2904VQDRG4?
The absolute maximum supply voltage (V+ to V–) for LM2904VQDRG4 is 32 V, but the recommended operating range is 3 V to 30 V. Operation beyond 30 V risks exceeding safe junction temperature limits and may degrade long-term reliability, especially at elevated ambient temperatures. Always observe derating curves in the thermal section of the official datasheet.
Does LM2904VQDRG4 support rail-to-rail output?
No, LM2904VQDRG4 does not provide rail-to-rail output swing. Its output can swing within approximately 1.5 V of V+ and as close as 5 mV to 20 mV above V– (depending on load current). This behavior is specified in Section 5.8 of the datasheet and must be accounted for in low-headroom applications like single-supply 3.3 V systems.
Is LM2904VQDRG4 pin-compatible with LM358?
Yes, LM2904VQDRG4 is pin-compatible with LM358 in SOIC-8 packaging - both share identical pin 1 (OUT1) through pin 8 (V+) assignments and functional mapping. However, LM2904VQDRG4 offers extended temperature range (–40°C to +125°C vs. 0°C to +70°C for standard LM358) and tighter input offset voltage specification.
Can LM2904VQDRG4 drive capacitive loads?
LM2904VQDRG4 is characterized to safely drive up to 100 pF capacitive loads without oscillation, as confirmed in Section 5.6 of the datasheet. For larger loads (e.g., >200 pF), external isolation resistance (typically 10–100 Ω) between the output and capacitance is recommended to maintain phase margin and prevent instability.
What is the input bias current specification for LM2904VQDRG4?
The input bias current for LM2904VQDRG4 is specified as –20 nA (typical) and –250 nA (maximum) at 25°C, increasing to –500 nA maximum over the full –40°C to +125°C operating range. This bipolar-input architecture results in higher bias current than CMOS op-amps but provides better ESD robustness and noise immunity in industrial settings.
LM2904VQDRG4 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:
- 3 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
LM2904VQDRG4 FAQ
1.How can I place an order for LM2904VQDRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904VQDRG4 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 LM2904VQDRG4 reliable?
The price and inventory of LM2904VQDRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904VQDRG4 is usually 5 days.
3.What payment methods are accepted for LM2904VQDRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904VQDRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2904VQDRG4?
LM2904VQDRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904VQDRG4 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 LM2904VQDRG4?
For technical support, including LM2904VQDRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904VQDRG4 requirements.
6.How does Aetrix verify that LM2904VQDRG4 is sourced from the original manufacturer or authorized distributors?
All LM2904VQDRG4 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 LM2904VQDRG4 meets industry standards.
7.What is the process for return or replacement of LM2904VQDRG4?
All LM2904VQDRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LM2904VQDRG4, 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 LM2904VQDRG4 part is unused and in its original packaging.
Return procedure for LM2904VQDRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904VQDRG4 Tags
-
LM358DT
STMicroelectronics
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LM358DR
Texas Instruments
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LM2904DR
Texas Instruments
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LM358ADR
Texas Instruments
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LM2904DGKR
Texas Instruments
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LM324DR
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MCP6006T-E/OT
Microchip Technology
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MCP6006UT-E/OT
Microchip Technology
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LM324PWR
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LM2902PWR
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LM2902DR
Texas Instruments
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LM358P
Texas Instruments
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