OPA228UG4

Product Overview

Category

OPA228UG4 belongs to the category of operational amplifiers (op-amps).

Use

It is commonly used in electronic circuits for amplifying and processing analog signals.

Characteristics

• High gain: OPA228UG4 offers a high voltage gain, making it suitable for applications requiring signal amplification.
• Low noise: The op-amp has low input noise, ensuring accurate signal processing.
• Wide bandwidth: It provides a wide frequency response range, enabling it to handle signals across a broad spectrum.
• Low power consumption: OPA228UG4 is designed to operate efficiently with low power requirements.

Package

The OPA228UG4 comes in a compact surface-mount package, allowing for easy integration into circuit boards.

Essence

OPA228UG4 is an essential component in electronic systems that require precise signal amplification and conditioning.

Packaging/Quantity

The op-amp is typically packaged in reels or tubes, with each reel containing a specific quantity of units. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Supply Voltage Range: ±2 V to ±18 V
• Input Offset Voltage: 0.5 mV (maximum)
• Input Bias Current: 1 pA (typical)
• Output Voltage Swing: ±13 V
• Gain Bandwidth Product: 10 MHz
• Slew Rate: 7 V/µs
• Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA228UG4 op-amp features a standard 8-pin dual in-line package (DIP) configuration. The pinout is as follows:

1. Non-Inverting Input (+)
2. Inverting Input (-)
3. Negative Power Supply (V-)
4. Positive Power Supply (V+)
5. Output
6. Null (used for offset nulling)
7. Compensation (used for frequency compensation)
8. Ground (GND)

Functional Features

• High voltage gain: OPA228UG4 provides a high open-loop voltage gain, allowing for accurate amplification of small input signals.
• Low distortion: The op-amp exhibits low harmonic distortion, ensuring faithful reproduction of the input signal.
• Rail-to-rail output swing: It offers an output voltage swing that can reach close to the supply rails, maximizing dynamic range.
• Unity-gain stable: The op-amp remains stable even at unity gain, making it suitable for applications requiring a buffer or voltage follower configuration.

Advantages and Disadvantages

Advantages

• High gain and wide bandwidth make it suitable for various applications.
• Low noise ensures accurate signal processing.
• Low power consumption increases energy efficiency.
• Rail-to-rail output swing maximizes dynamic range.

Disadvantages

• Limited output current capability may restrict its use in certain applications.
• Higher cost compared to some other op-amps with similar specifications.

Working Principles

OPA228UG4 operates based on the principles of differential amplification. It amplifies the voltage difference between its non-inverting and inverting inputs, producing an amplified output signal. The op-amp's internal circuitry, including transistors and resistors, enables it to achieve high gain, low noise, and other desired characteristics.

Detailed Application Field Plans

OPA228UG4 finds application in various fields, including: 1. Audio amplification: It can be used in audio systems to amplify weak audio signals from sources such as microphones or musical instruments. 2. Sensor signal conditioning: OPA228UG4 is suitable for amplifying and conditioning signals from sensors like temperature sensors, pressure sensors, or strain gauges. 3. Instrumentation and measurement: It can be utilized in precision measurement equipment, data acquisition systems, or test and measurement instruments. 4. Active filters: OPA228UG4 is commonly employed in active filter circuits to shape the frequency response of signals.

Detailed and Complete Alternative Models

1. OPA227U: Similar specifications and pin configuration, but with lower gain bandwidth product.
2. OPA2350UA: Offers higher output current capability and wider supply voltage range, but with slightly higher noise.
3. LT1677: Provides similar performance characteristics, but with lower input offset voltage and higher slew rate.

These alternative models can be considered based on specific application requirements and design constraints.

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