Overview
The LM2904QDR is a dual operational amplifier (op-amp) manufactured by Texas Instruments. It is part of the next-generation versions of industry-standard operational amplifiers, offering enhanced features and performance. This device is particularly suited for cost-sensitive applications that require high reliability and robust performance.
The LM2904QDR is known for its wide supply range, low offset voltage, and high differential input voltage capability, making it versatile for various electronic designs. Although the specific part number LM2904QDR is noted as obsolete for new designs, it remains a significant component in existing and legacy systems.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Supply Voltage Range | 3V to 36V | B, BA versions |
| Quiescent Current | 300µA/ch | B, BA versions, typical |
| Unity-Gain Bandwidth | 1.2MHz | B, BA versions |
| Common-Mode Input Voltage Range | Includes ground | |
| Input Offset Voltage | 2mV (BA version), 3mV (A, B versions) | Maximum at 25°C |
| Operating Temperature Range | -40°C to 125°C | |
| Package Type | SOIC-8 | |
| ESD Protection | 2kV, HBM | |
| RF and EMI Filter | Internal | B, BA versions |
Key Features
- Wide Supply Range: Operates from 3V to 36V, making it versatile for various power supply conditions.
- Low Quiescent Current: Typical quiescent current of 300µA per channel, which is beneficial for power-sensitive applications.
- High Unity-Gain Bandwidth: Offers a unity-gain bandwidth of 1.2MHz, suitable for high-frequency applications.
- Common-Mode Input Range: Includes ground, enabling direct sensing near ground.
- Low Input Offset Voltage: Maximum input offset voltage of 2mV for BA versions and 3mV for A and B versions at 25°C.
- Internal RF and EMI Filter: Built-in filters to enhance noise immunity.
- High ESD Protection: 2kV HBM ESD protection for robustness in harsh environments).
Applications
The LM2904QDR is suitable for a variety of applications due to its robust performance and versatile features. Some common applications include:
- Industrial Control Systems: For sensing and amplifying signals in industrial environments.
- Automotive Systems: For use in automotive electronics where high reliability and robustness are required).
- Medical Devices: In medical equipment where precision and low noise are critical).
- Consumer Electronics: In audio and video equipment, as well as other consumer electronic devices).
Q & A
- What is the supply voltage range of the LM2904QDR?
The LM2904QDR operates from a supply voltage range of 3V to 36V.
- What is the typical quiescent current of the LM2904QDR?
The typical quiescent current is 300µA per channel.
- What is the unity-gain bandwidth of the LM2904QDR?
The unity-gain bandwidth is 1.2MHz.
- Does the LM2904QDR include ground in its common-mode input voltage range?
Yes, the common-mode input voltage range includes ground.
- What is the maximum input offset voltage of the LM2904QDR at 25°C?
The maximum input offset voltage is 2mV for BA versions and 3mV for A and B versions.
- Does the LM2904QDR have internal RF and EMI filters?
Yes, it has internal RF and EMI filters.
- What is the ESD protection rating of the LM2904QDR?
The ESD protection rating is 2kV HBM.
- In what package types is the LM2904QDR available?
The LM2904QDR is available in SOIC-8 packages among others.
- What is the operating temperature range of the LM2904QDR?
The operating temperature range is -40°C to 125°C.
- Is the LM2904QDR still in production?
No, the LM2904QDR is noted as obsolete for new designs, though it may still be available for existing and legacy systems.
