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Texas Instruments LM2904AVQPWRG4
- Part No.:
- LM2904AVQPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
LM2904AVQPWRG4.pdf
- Description:
- IC OPAMP GP 2 CIRCUIT 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,981
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Product details
Overview
LM2904AVQPWRG4 from Texas Instruments is a dual operational amplifier optimized for industrial and automotive applications, featuring rail-to-rail input (including ground), 3V to 30V supply range, 3mV max input offset voltage at 25°C, 0.7MHz gain-bandwidth product, and operation across –40°C to +125°C ambient temperature. It serves as a precision signal conditioning and feedback amplification stage in motor control, power supply monitoring, and sensor interface circuits.
For engineers reviewing the LM2904AVQPWRG4 datasheet, LM2904AVQPWRG4 pinout, LM2904AVQPWRG4 application, or LM2904AVQPWRG4 equivalent, this page delivers verified electrical specifications, package-validated pin functions, real-world use cases, and technically grounded alternative part comparisons - all aligned with TI's SLOS068AB production data sheet (October 2024).
Technical Context
The LM2904AVQPWRG4 belongs to the LM2904B/BA family and implements two independent high-voltage op amps with common-mode input voltage range extending to V– (ground), enabling single-supply sensing of low-side current or battery voltage. Its internal architecture supports unity-gain stability without external compensation.
It features 300µA per amplifier quiescent current, integrated RF/EMI filtering, and robust ±500V HBM ESD protection - making it suitable for electrically noisy environments such as motor drives and industrial inverters where signal integrity and long-term reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage Range | 3V to 30V - supports wide-input industrial power rails and automotive battery variations (9V–16V nominal, up to 30V transients) |
| Input Offset Voltage (max, 25°C) | ±3 mV - enables accurate DC-coupled amplification in closed-loop current sensing and voltage reference buffering |
| Gain-Bandwidth Product | 0.7 MHz - sufficient for <100 kHz signal conditioning in motor control feedback loops and PSU error amplifiers |
| Quiescent Current (per channel) | 350 µA typical - allows low-power operation in always-on subsystems like HVAC control or battery-backed sensors |
| Operating Temperature Range | –40°C to +125°C - qualified for under-hood automotive and industrial edge controller deployment |
| Common-Mode Input Range | Includes V– (ground) - permits direct interfacing with shunt resistors, thermistors, and other ground-referenced sensors |
| ESD Rating (HBM) | ±500 V - meets basic industrial handling requirements; lower than B/BA versions but validated for standard assembly lines |
Pinout & Package
TSSOP-8 (PW) package: 3mm × 6.4mm body, 0.65mm pitch, surface-mount, moisture-sensitive level 1 (MSL-1), RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT1) | Output of Amplifier 1 | Delivers buffered, amplified signal; capable of sourcing/sinking ±20 mA into 2kΩ load |
| 2 (IN1–) | Inverting Input of Amplifier 1 | Accepts feedback or inverted signal path; high-impedance (4 GΩ||1.5 pF common-mode) |
| 3 (IN1+) | Non-inverting Input of Amplifier 1 | Accepts reference or sensor signal; supports common-mode voltages down to V– |
| 4 (V–) | Negative Supply / Ground Reference | Serves as circuit ground in single-supply configurations; must be low-impedance return path |
| 5 (IN2+) | Non-inverting Input of Amplifier 2 | Independent second channel input; identical electrical behavior to Pin 3 |
| 6 (IN2–) | Inverting Input of Amplifier 2 | Second channel feedback node; shares same bias current specs (–20 nA typ) as Pin 2 |
| 7 (OUT2) | Output of Amplifier 2 | Independent output stage; matches OUT1 performance including output swing (100 mV above V–) |
| 8 (V+) | Positive Supply | Accepts up to 30V; requires local 0.1 µF ceramic decoupling near pin for stability |
Key Features
| Feature | Design Value |
|---|---|
| Rail-to-rail input (V– inclusive) | Enables direct measurement of signals referenced to system ground without level-shifting circuitry |
| Low input offset voltage (±3 mV max) | Reduces DC error in precision gain stages used in current-sense amplifiers and voltage monitors |
| Wide supply range (3V–30V) | Eliminates need for separate LDOs in multi-rail systems; compatible with 12V/24V industrial buses |
| High ESD tolerance (±500V HBM) | Supports reliable automated assembly and field service in unshielded industrial enclosures |
| Unity-gain stable | Permits direct use in voltage followers and active filters without external compensation components |
Applications
| Motor Control Feedback | Industrial Power Supply Monitoring |
|---|---|
|
Use Scenario: Closed-loop speed regulation of brushed DC motors using back-EMF or hall sensor signals. IC Role / Device Role / Timing Role: Dual op amp configured as differential current sense amplifier (Ch1) and voltage error amplifier (Ch2) in PSU feedback loop. Use Value: Enables accurate torque control and overcurrent protection with minimal external components due to rail-to-rail input and stable 0.7MHz GBW. |
Use Scenario: Real-time monitoring of output voltage and current in 24V industrial SMPS units. IC Role / Device Role / Timing Role: Ch1 buffers isolated voltage divider output; Ch2 conditions shunt-based current sense signal before ADC input. Use Value: ±3 mV offset ensures <1% full-scale error in 0–24V measurement; –40°C to +125°C rating guarantees uptime in factory-floor cabinets. |
| Automotive HVAC Blower Control | Appliance Motor Drive Interface |
|
Use Scenario: PWM-driven blower fan with analog tachometer feedback and thermal foldback protection. IC Role / Device Role / Timing Role: Ch1 conditions tach pulse amplitude; Ch2 compares NTC thermistor voltage against threshold for thermal shutdown logic. Use Value: Single TSSOP-8 package replaces discrete comparator + buffer; 300µA/channel quiescent current minimizes standby drain. |
Use Scenario: Speed and direction control of washing machine drum motor via H-bridge driver with current limiting. IC Role / Device Role / Timing Role: Dual-channel signal conditioner for bidirectional current sense and position encoder signal amplification. Use Value: Common-mode input to V– allows direct connection to low-side shunts; 0.7MHz bandwidth supports >50 kHz PWM carrier rejection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual operational amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM2904BQPWR | Lower input offset (±3 mV → ±2 mV max), higher ESD (±2000V HBM), same PW package and pinout | Better DC accuracy and noise immunity; suited for precision sensor front-ends in safety-critical modules | Select when tighter offset drift (<±2.5 mV over –40°C to +125°C) and enhanced EMI resilience are required |
| LM2904VQPWR | Same offset spec (±3 mV), wider supply (3V–32V), improved input bias current (–15 nA typ vs –20 nA), identical PW footprint | Enhanced performance in high-impedance sensor interfaces and extended-battery applications | Choose for legacy compatibility where V-suffix qualification (MIL-PRF-38535 Class V) or 32V transient tolerance is mandated |
Compared with LM2904AVQPWRG4, LM2904BQPWR offers superior DC precision and ESD robustness for next-gen designs, while LM2904VQPWR provides broader supply flexibility and tighter input bias control - both retain full pin compatibility and support drop-in replacement in existing TSSOP-8 layouts.
Availability
LM2904AVQPWRG4 is available at Aetrix Electronics and suitable for industrial motor control, automotive HVAC subsystems, and appliance power management requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for LM2904AVQPWRG4 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 over 90 years of innovation in high-reliability analog ICs.
The LM2904 series was designed specifically for cost-sensitive, high-volume industrial and automotive signal conditioning - prioritizing robustness, wide supply operation, and ground-sensing capability over ultra-low-noise or high-speed performance.
FAQ
What is the maximum supply voltage for LM2904AVQPWRG4?
The LM2904AVQPWRG4 supports a maximum supply voltage of 30V across V+ to V–. This rating is confirmed in Section 5.1 (Absolute Maximum Ratings) and Section 5.3 (Recommended Operating Conditions) of the TI SLOS068AB datasheet. Exceeding 30V risks permanent damage, and operation above 26V should include transient suppression per automotive ISO 7637-2 guidelines. The LM2904AVQPWRG4 maintains full functionality across its 3V–30V range.
Does LM2904AVQPWRG4 support rail-to-rail input?
Yes, the LM2904AVQPWRG4 supports rail-to-rail input with common-mode voltage range extending to V– (ground), as specified in Table 5-3 (Recommended Operating Conditions) and Figure 4-1 (Pin Configuration). This allows direct interfacing with ground-referenced sources like current-sense shunts and thermistors without level-shifting circuitry - a key differentiator from earlier LM2904 variants with limited common-mode range.
What is the input offset voltage specification for LM2904AVQPWRG4?
The LM2904AVQPWRG4 has a maximum input offset voltage of ±3 mV at 25°C, with ±4 mV guaranteed over its full operating temperature range of –40°C to +125°C. This value is explicitly listed in Section 5.6 (Electrical Characteristics: LM2904B and LM2904BA) of the TI SLOS068AB datasheet. It is identical to the LM2904B specification but tighter than legacy LM2904 (±7 mV).
Is LM2904AVQPWRG4 pin-compatible with other LM2904 variants in TSSOP-8?
Yes, the LM2904AVQPWRG4 uses the standard TSSOP-8 (PW) package with identical pinout to LM2904BQPWR, LM2904VQPWR, and LM2904QPWR - as confirmed in Table 4-1 (Pin Functions) and Figure 4-1 of the TI SLOS068AB datasheet. All share the same 1–8 pin mapping: OUT1, IN1–, IN1+, V–, IN2+, IN2–, OUT2, V+. No PCB layout changes are required for substitution within this PW-family subset.
What is the gain-bandwidth product of LM2904AVQPWRG4?
The LM2904AVQPWRG4 has a gain-bandwidth product of 0.7 MHz, as documented in Section 5.6 (Electrical Characteristics) of the TI SLOS068AB datasheet. This is consistent with the LM2904/LM2904V family and distinct from the higher 1.2 MHz GBW of the LM2904B/BA variants. The 0.7 MHz bandwidth supports stable operation in DC-coupled feedback loops and low-frequency signal conditioning up to ~100 kHz.
LM2904AVQPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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-TSSOP
LM2904AVQPWRG4 FAQ
1.How can I place an order for LM2904AVQPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for LM2904AVQPWRG4 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 LM2904AVQPWRG4 reliable?
The price and inventory of LM2904AVQPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LM2904AVQPWRG4 is usually 5 days.
3.What payment methods are accepted for LM2904AVQPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LM2904AVQPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LM2904AVQPWRG4?
LM2904AVQPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LM2904AVQPWRG4 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 LM2904AVQPWRG4?
For technical support, including LM2904AVQPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LM2904AVQPWRG4 requirements.
6.How does Aetrix verify that LM2904AVQPWRG4 is sourced from the original manufacturer or authorized distributors?
All LM2904AVQPWRG4 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 LM2904AVQPWRG4 meets industry standards.
7.What is the process for return or replacement of LM2904AVQPWRG4?
All LM2904AVQPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with LM2904AVQPWRG4, 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 LM2904AVQPWRG4 part is unused and in its original packaging.
Return procedure for LM2904AVQPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LM2904AVQPWRG4 Tags
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