Overview
The LM2904DE4 is a dual operational amplifier produced by Texas Instruments. It is part of the industry-standard LM2904 series, known for its versatility and reliability in a wide range of applications. This device features two high-voltage operational amplifiers, making it suitable for various cost-sensitive and environmentally challenging applications.
The LM2904DE4 offers enhanced features such as low offset voltage, high differential input voltage capability, and a wide supply voltage range. It is available in several package types, including SOIC, TSSOP, and VSSOP, making it adaptable to different design requirements.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 3 | - | 36 | V |
| Quiescent Current per Amplifier (IQ) | 300 | 460 | 800 | µA |
| Input Offset Voltage (VOS) | ±0.3 | ±3.0 | ±4.0 | mV |
| Input Offset Voltage Drift (dVOS/dT) | ±3.5 | - | 12 | µV/°C |
| Unity-Gain Bandwidth | - | 1.2 | - | MHz |
| Common-Mode Input Voltage Range (VCM) | V– | - | (V+) – 2 | V |
| Operating Ambient Temperature (TA) | –40 | - | 125 | °C |
| ESD Rating (HBM) | - | - | 2000 | V |
Key Features
- Wide Supply Range: Operates from 3V to 36V, making it versatile for various power supply conditions.
- Low Quiescent Current: 300µA per channel, which is beneficial for power-sensitive applications.
- Unity-Gain Bandwidth: 1.2MHz, ensuring good frequency response.
- Low Input Offset Voltage: Maximum of 3mV at 25°C, with the BA version having a maximum of 2mV.
- Common-Mode Input Voltage Range: Includes ground, allowing for direct sensing near ground.
- Internal RF and EMI Filter: Enhances the device's robustness against electromagnetic interference.
- High ESD Rating: 2kV HBM, providing protection against electrostatic discharge).
Applications
- Power Supplies and Mobile Chargers: Suitable for various power supply units and mobile charging applications.
- Motor Control: Used in AC induction, brushed DC, brushless DC, high-voltage, low-voltage, permanent magnet, and stepper motor control).
- Desktop PC and Motherboard: Can be used in computer hardware for various signal processing tasks).
- Home Appliances: Found in washers, dryers, refrigerators, and air conditioners).
- Uninterruptible Power Supplies (UPS): Used to ensure continuous power supply in critical systems).
- Electronic Point-of-Sale Systems: Utilized in POS systems for reliable and efficient operation).
Q & A
- What is the supply voltage range of the LM2904DE4?
The LM2904DE4 operates from 3V to 36V).
- What is the typical quiescent current per amplifier?
The typical quiescent current per amplifier is 300µA).
- What is the unity-gain bandwidth of the LM2904DE4?
The unity-gain bandwidth is 1.2MHz).
- What is the maximum input offset voltage at 25°C?
The maximum input offset voltage is 3mV for the B version and 2mV for the BA version).
- Does the LM2904DE4 have internal RF and EMI filters?
Yes, it includes internal RF and EMI filters).
- What is the ESD rating of the LM2904DE4?
The ESD rating is 2kV HBM).
- What are some common applications of the LM2904DE4?
It is used in power supplies, motor control, desktop PCs, home appliances, UPS systems, and electronic point-of-sale systems).
- What are the available package types for the LM2904DE4?
The device is available in SOIC, TSSOP, and VSSOP packages).
- What is the operating ambient temperature range of the LM2904DE4?
The operating ambient temperature range is –40°C to 125°C).
- Does the LM2904DE4 have a common-mode input voltage range that includes ground?
Yes, the common-mode input voltage range includes ground, allowing for direct sensing near ground).
