OPA2228PAG4

Product Overview

Category: Operational Amplifier
Use: Signal amplification and conditioning
Characteristics: High precision, low noise, wide bandwidth
Package: PDIP-8, SOIC-8
Essence: Monolithic operational amplifier
Packaging/Quantity: Tube (50 pieces), Tape and Reel (2500 pieces)

Specifications

• Supply Voltage: ±2.25V to ±18V
• Input Offset Voltage: 150µV (maximum)
• Input Bias Current: 1nA (maximum)
• Input Voltage Noise: 7nV/√Hz (typical)
• Gain Bandwidth Product: 22MHz (typical)
• Slew Rate: 20V/µs (typical)
• Output Current: 40mA (maximum)
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA2228PAG4 has a standard pin configuration with the following assignments:

1. Non-Inverting Input (+)
2. Inverting Input (-)
3. V-
4. V+
5. Offset Null
6. Output
7. NC (No Connection)
8. Ground

Functional Features

• High precision and accuracy in signal amplification
• Low noise for improved signal integrity
• Wide bandwidth for versatile applications
• Stable operation over a wide temperature range
• High output current capability for driving various loads

Advantages and Disadvantages

Advantages: - Excellent precision and low offset voltage - Low input bias current for minimal loading effects - High gain bandwidth product for accurate signal reproduction - Robust construction for reliable performance - Versatile package options for different PCB layouts

Disadvantages: - Relatively high power consumption compared to some alternatives - Limited output current compared to specialized amplifiers

Working Principles

The OPA2228PAG4 is a monolithic operational amplifier designed for high-performance signal amplification and conditioning. It utilizes advanced semiconductor technology to achieve low noise, high precision, and wide bandwidth characteristics. The amplifier operates by amplifying the voltage difference between its non-inverting and inverting inputs, producing an amplified output signal that faithfully represents the input.

Detailed Application Field Plans

The OPA2228PAG4 is widely used in various applications that require accurate signal amplification and conditioning. Some common application fields include:

1. Audio Amplification: The amplifier's low noise and high gain make it suitable for audio amplifiers, preamplifiers, and headphone amplifiers.
2. Instrumentation: Its precision and stability make it ideal for use in test and measurement equipment, data acquisition systems, and sensor interfaces.
3. Communication Systems: The amplifier can be employed in communication systems such as transmitters, receivers, and modems to amplify and condition signals.
4. Industrial Control: It finds applications in industrial control systems, motor drives, and robotics, where precise signal processing is crucial.

Detailed and Complete Alternative Models

1. LM358: Dual operational amplifier with similar characteristics
2. TL072: Low noise JFET-input operational amplifier
3. AD822: Precision instrumentation amplifier with high common-mode rejection ratio (CMRR)
4. LT1498: Quad operational amplifier with low power consumption

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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