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OPA338UA
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OPA338UA

Product Overview

Category: Operational Amplifier
Use: Signal amplification and conditioning
Characteristics: High precision, low noise, wide bandwidth
Package: SOIC-8
Essence: Integrated circuit for analog signal processing
Packaging/Quantity: Tape and reel, 2500 units per reel

Specifications

  • Supply Voltage: ±2.5V to ±18V
  • Input Offset Voltage: 150µV (maximum)
  • Input Bias Current: 1nA (maximum)
  • Gain Bandwidth Product: 10MHz
  • Slew Rate: 6V/µs
  • Output Current: 40mA (maximum)
  • Operating Temperature Range: -40°C to +125°C

Detailed Pin Configuration

The OPA338UA follows the standard pin configuration for operational amplifiers:

  1. OUT: Output pin
  2. V-: Inverting input pin
  3. V+: Non-inverting input pin
  4. NC: No connection
  5. NC: No connection
  6. VCC+: Positive power supply pin
  7. VCC-: Negative power supply pin
  8. GND: Ground pin

Functional Features

  • High precision amplification of analog signals
  • Low noise operation for accurate signal processing
  • Wide bandwidth allows for handling high-frequency signals
  • Rail-to-rail output swing for maximum dynamic range
  • Unity-gain stable for easy circuit design
  • Low input offset voltage for precise signal conditioning

Advantages and Disadvantages

Advantages: - High precision amplification ensures accurate signal processing - Low noise operation maintains signal integrity - Wide bandwidth enables handling of high-frequency signals - Rail-to-rail output swing provides maximum dynamic range - Unity-gain stability simplifies circuit design - Low input offset voltage ensures precise signal conditioning

Disadvantages: - Limited output current may restrict certain applications - Requires external power supply for operation

Working Principles

The OPA338UA is an operational amplifier designed to amplify and condition analog signals. It operates based on the principles of differential amplification, where the difference between the non-inverting and inverting input voltages is amplified by a high gain factor. This amplified output can then be used for various signal processing tasks such as filtering, amplification, or buffering.

Detailed Application Field Plans

The OPA338UA finds applications in various fields including:

  1. Audio Systems: Amplification and equalization of audio signals in stereo systems, home theaters, and professional audio equipment.
  2. Instrumentation: Signal conditioning and amplification in measurement instruments like oscilloscopes, data loggers, and spectrum analyzers.
  3. Communication Systems: Amplification and filtering of signals in wireless communication devices, transceivers, and base stations.
  4. Industrial Control: Signal processing in control systems for motor drives, robotics, and process automation.
  5. Medical Equipment: Amplification and filtering of bioelectric signals in ECG machines, patient monitors, and medical imaging devices.

Detailed and Complete Alternative Models

  1. OPA333: Low-power, single-supply operational amplifier with similar specifications.
  2. OPA344: Quad operational amplifier with rail-to-rail input/output and low noise characteristics.
  3. OPA627: High-performance, precision operational amplifier with ultra-low distortion and noise levels.

These alternative models provide different features and performance characteristics, allowing users to choose the most suitable option for their specific application requirements.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von OPA338UA in technischen Lösungen auf

  1. What is the typical operating voltage range for OPA338UA?
    - The typical operating voltage range for OPA338UA is 2.7V to 5.5V.

  2. What is the input offset voltage of OPA338UA?
    - The input offset voltage of OPA338UA is typically 150µV.

  3. Can OPA338UA be used in single-supply applications?
    - Yes, OPA338UA can be used in single-supply applications.

  4. What is the typical gain bandwidth product of OPA338UA?
    - The typical gain bandwidth product of OPA338UA is 10MHz.

  5. Is OPA338UA suitable for low-power applications?
    - Yes, OPA338UA is suitable for low-power applications with a quiescent current of 650µA.

  6. What is the input common-mode voltage range of OPA338UA?
    - The input common-mode voltage range of OPA338UA is typically -0.1V to VCC+.

  7. Does OPA338UA have built-in EMI filtering?
    - No, OPA338UA does not have built-in EMI filtering.

  8. Can OPA338UA operate in high-temperature environments?
    - Yes, OPA338UA can operate in high-temperature environments with a temperature range of -40°C to 125°C.

  9. What is the output voltage swing of OPA338UA?
    - The output voltage swing of OPA338UA is typically within 50mV of the rails.

  10. Is OPA338UA RoHS compliant?
    - Yes, OPA338UA is RoHS compliant.