LM2902PW

Product Overview

Category: Integrated Circuit (IC)

Use: The LM2902PW is a quad operational amplifier designed for general-purpose applications. It is commonly used in various electronic circuits that require amplification, filtering, and signal conditioning.

Characteristics: - Low input offset voltage - Low input bias current - High gain bandwidth product - Wide supply voltage range - Rail-to-rail output swing capability

Package: The LM2902PW is available in a small outline package (SOIC) with 14 pins. This package offers good thermal performance and ease of handling during assembly.

Essence: The essence of the LM2902PW lies in its ability to provide high-performance operational amplifiers in a compact package, making it suitable for a wide range of applications.

Packaging/Quantity: The LM2902PW is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Supply Voltage Range: 3V to 32V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 45nA (maximum)
• Gain Bandwidth Product: 1MHz (typical)
• Slew Rate: 0.5V/µs (typical)
• Output Current: 20mA (typical)
• Operating Temperature Range: -40°C to 125°C

Pin Configuration

The LM2902PW has 14 pins arranged as follows:

```

---

| | --|1 ... 14|-- |_______________| ```

Pin Description: 1. Non-Inverting Input 1 2. Inverting Input 1 3. V- 4. Output 1 5. Non-Inverting Input 2 6. Inverting Input 2 7. V+ 8. Output 2 9. Non-Inverting Input 3 10. Inverting Input 3 11. VCC+ 12. Output 3 13. Non-Inverting Input 4 14. Inverting Input 4

Functional Features

• Low input offset voltage ensures accurate amplification of small signals.
• Rail-to-rail output swing capability allows the amplifier to drive signals close to the supply rails.
• High gain bandwidth product enables the amplifier to handle high-frequency signals.
• Wide supply voltage range provides flexibility in various power supply configurations.

Advantages and Disadvantages

Advantages: - Low input offset voltage results in precise signal amplification. - Rail-to-rail output swing capability enhances signal integrity. - High gain bandwidth product enables the amplifier to handle a wide range of frequencies. - Wide supply voltage range allows for versatile power supply options.

Disadvantages: - Limited output current may restrict its use in applications requiring higher current capabilities. - The package size may not be suitable for space-constrained designs.

Working Principles

The LM2902PW operates based on the principles of operational amplifiers. It amplifies the difference between the voltages applied to its inputs, producing an amplified output signal. The internal circuitry of the LM2902PW ensures low input offset voltage, high gain, and other desirable characteristics.

Application Field Plans

The LM2902PW finds applications in various fields, including: 1. Audio amplification circuits 2. Sensor signal conditioning 3. Active filters 4. Voltage comparators 5. Signal generators

Alternative Models

Some alternative models that can be considered as substitutes for the LM2902PW are: - LM324 - TL074 - MC34074 - CA3140

These models offer similar functionality and characteristics, providing options for different design requirements.

In conclusion, the LM2902PW is a versatile quad operational amplifier suitable for a wide range of applications. Its low input offset voltage, rail-to-rail output swing capability, and high gain bandwidth product make it an excellent choice for various electronic circuits.