LM2904 Dual Operational Amplifier – High Performance, Low Power Op-Amp for Industrial and Automotive Applications
De LM2904 is a dual operational amplifier designed by Texas Instruments (TI) to deliver high performance in a wide range of industrial and automotive applications. This device integrates two independent, high-gain, internally frequency-compensated op-amps, making it ideal for single-supply operations. With its low power consumption and wide operating voltage range, it is a preferred choice for engineers and system designers seeking reliable analog signal processing in harsh environments.
Manufactured by IC-fabrikant, a trusted distributor of high-quality semiconductors, the LM2904 is backed by industry-leading support and global supply chain capabilities. This product is widely recognized for its robust performance, cost-effectiveness, and compliance with automotive-grade standards.
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Technische specificaties en elektrische kenmerken
The following table outlines the key technical parameters of the LM2904 dual op-amp:
| Parameter | Waarde | Eenheid |
|---|---|---|
| Aantal kanalen | 2 | – |
| Bereik voedingsspanning | 3 V to 32 V | V |
| Ingangsoffsetspanning (Max) | 7 | mV |
| Ingangsbiasstroom (Max) | 250 | nA |
| Toename Bandbreedte Product | 1.2 | MHz |
| Zwenksnelheid | 0.5 | V/µs |
| Bedrijfstemperatuurbereik | -40 to 125 | °C |
| Uitgangsstroom | 20 | mA |
| Pakketopties | SOIC, TSSOP, PDIP | – |
Why Choose This Dual Op-Amp Over Standard Alternatives?
The LM2904 offers several prestatievoordelen over typical general-purpose op-amps. Its ability to operate from a single supply as low as 3V and up to 32V makes it highly versatile for both low-voltage and high-voltage systems. Unlike many standard op-amps, it maintains stable operation across a wide temperature range, making it suitable for automotive and industrial environments.
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Another key benefit is its low input bias current and offset voltage, which contribute to higher accuracy in analog signal processing. The internal frequency compensation ensures stability without the need for external components, simplifying circuit design and reducing BOM costs.
According to industry experts and engineers, the LM2904 is a go-to solution for applications requiring low power consumption and high reliability. Its proven track record in automotive systems, such as engine control units and sensor interfaces, further reinforces its credibility in mission-critical applications.
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Typical Applications in Industrial and Automotive Systems
The LM2904 is widely used in the following application areas:
- Sensor Signal Conditioning – Amplifies low-level signals from temperature, pressure, or position sensors.
- Motor Control Systems – Used in feedback loops for precise motor speed and position control.
- Battery Management Systems (BMS) – Monitors and balances cell voltages in EV and energy storage systems.
- Power Supply Monitoring – Provides voltage level detection and fault monitoring in power management circuits.
- Audio Signal Processing – Suitable for pre-amplification and filtering in analog audio circuits.
Texas Instruments – A Trusted Name in Analog Innovation
Texas Instruments (TI) is a global leader in analog and embedded processing semiconductors. With decades of innovation and a strong commitment to quality, TI’s analog ICs are trusted by engineers worldwide. The LM2904 is part of TI’s extensive portfolio of operational amplifiers, known for their reliability, performance, and long-term availability.
TI’s rigorous testing and qualification processes ensure that each component meets stringent industry standards, including AEC-Q100 for automotive applications. This makes the LM2904 a dependable choice for OEMs and system integrators seeking long-term product lifecycle support.
Veelgestelde vragen (FAQ)
1. What is the main advantage of using this dual op-amp in automotive applications?
The LM2904 is AEC-Q100 qualified, ensuring it meets automotive-grade reliability standards. Its wide temperature range and low power consumption make it ideal for engine control, sensor interfaces, and battery monitoring systems.
2. Can this op-amp operate with a single power supply?
Yes, it is designed for single-supply operation from 3V to 32V. This simplifies power supply design and reduces component count in systems where dual supplies are not feasible.
3. How does the LM2904 compare to standard op-amps in terms of stability?
It features internal frequency compensation, which ensures stable operation without external components. This makes it more reliable and easier to implement than many standard op-amps requiring external compensation.
4. What packaging options are available for this device?
The LM2904 is available in multiple package types including SOIC, TSSOP, and PDIP. This allows flexibility in PCB layout and compatibility with both through-hole and surface-mount designs.
5. Is this op-amp suitable for low-power applications?
Yes, its low quiescent current and efficient design make it suitable for battery-powered and energy-sensitive applications, such as portable instrumentation and remote sensors.
