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OPA2228UA/2K5

OPA2228UA/2K5

Basic Information Overview

  • Category: Operational Amplifier
  • Use: Signal amplification and conditioning in various electronic circuits
  • Characteristics: High precision, low noise, wide bandwidth, low power consumption
  • Package: Dual inline package (DIP)
  • Essence: Monolithic integrated circuit (IC)
  • Packaging/Quantity: Available in tubes or reels, quantity varies based on supplier

Specifications

  • Supply Voltage: ±2.5V to ±18V
  • Input Offset Voltage: 0.25mV (maximum)
  • Input Bias Current: 1nA (maximum)
  • Gain Bandwidth Product: 22MHz (typical)
  • Slew Rate: 20V/µs (typical)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA2228UA/2K5 has a standard dual inline package (DIP) with 8 pins. The pin configuration is as follows:

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

Functional Features

  • High precision amplification of signals with low distortion
  • Low noise performance for accurate signal processing
  • Wide bandwidth allows for handling high-frequency signals
  • Low power consumption for energy-efficient operation
  • Offset null pin for fine-tuning the input offset voltage

Advantages and Disadvantages

Advantages: - High precision amplification ensures accurate signal reproduction - Low noise performance improves signal quality - Wide bandwidth enables handling of high-frequency signals - Low power consumption reduces energy usage - Offset null pin allows for precise calibration

Disadvantages: - Limited supply voltage range compared to some other operational amplifiers - May not be suitable for applications requiring extremely high gain or bandwidth

Working Principles

The OPA2228UA/2K5 is an operational amplifier that operates based on the principles of differential amplification. It amplifies the difference between the voltages at its non-inverting and inverting inputs, producing an output voltage proportional to this difference. The amplifier's internal circuitry ensures high precision, low noise, and wide bandwidth performance.

Detailed Application Field Plans

The OPA2228UA/2K5 finds application in various electronic circuits where signal amplification and conditioning are required. Some common application fields include:

  1. Audio Amplification: Used in audio systems for amplifying low-level audio signals with high fidelity.
  2. Instrumentation: Utilized in precision measurement instruments to amplify and condition sensor signals.
  3. Active Filters: Employed in active filter circuits for frequency response shaping and signal conditioning.
  4. Data Acquisition Systems: Integrated into data acquisition systems to amplify weak analog signals before digitization.
  5. Communication Systems: Used in communication equipment for signal processing and amplification.

Detailed and Complete Alternative Models

  1. LM741: A widely used general-purpose operational amplifier with similar characteristics.
  2. AD822: Offers low power consumption and rail-to-rail input/output capabilities.
  3. TL072: Dual operational amplifier with low noise and high slew rate.
  4. LT1498: Precision operational amplifier with low offset voltage and low input bias current.

These alternative models provide similar functionality and can be considered as substitutes for the OPA2228UA/2K5 in various applications.

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Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng OPA2228UA/2K5 trong giải pháp kỹ thuật

  1. What is the typical voltage supply range for OPA2228UA/2K5?
    - The typical voltage supply range for OPA2228UA/2K5 is ±2.25V to ±18V.

  2. What is the input offset voltage of OPA2228UA/2K5?
    - The input offset voltage of OPA2228UA/2K5 is typically 75µV.

  3. Can OPA2228UA/2K5 be used in low-noise applications?
    - Yes, OPA2228UA/2K5 is suitable for low-noise applications due to its low input voltage noise of 7nV/√Hz.

  4. What is the typical gain bandwidth product of OPA2228UA/2K5?
    - The typical gain bandwidth product of OPA2228UA/2K5 is 22MHz.

  5. Is OPA2228UA/2K5 suitable for precision instrumentation amplifiers?
    - Yes, OPA2228UA/2K5 is well-suited for precision instrumentation amplifiers due to its low offset voltage and low noise characteristics.

  6. Can OPA2228UA/2K5 operate in single-supply configurations?
    - Yes, OPA2228UA/2K5 can operate in single-supply configurations with proper biasing and decoupling.

  7. What is the maximum output current of OPA2228UA/2K5?
    - The maximum output current of OPA2228UA/2K5 is typically ±30mA.

  8. Does OPA2228UA/2K5 have built-in EMI filtering?
    - No, OPA2228UA/2K5 does not have built-in EMI filtering and may require external filtering components in sensitive applications.

  9. Can OPA2228UA/2K5 be used in audio amplifier circuits?
    - Yes, OPA2228UA/2K5 can be used in audio amplifier circuits due to its wide bandwidth and low distortion.

  10. What is the recommended operating temperature range for OPA2228UA/2K5?
    - The recommended operating temperature range for OPA2228UA/2K5 is -40°C to 125°C.