• CA3280AE DIP16
CA3280AE DIP16


Transconductance Amplifiers


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Overview of CA3280AE

The CA3280AE is a dual operational transconductance amplifier (OTA) IC known for its versatile applications in audio circuits, voltage-controlled amplifiers, and electronic music synthesizers. With two OTAs in a single package, it offers a compact solution for various signal processing needs.


(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

  • IN1: Input for Amplifier 1
  • IN2: Input for Amplifier 2
  • V-: Negative Power Supply
  • V+: Positive Power Supply
  • OUT1: Output for Amplifier 1
  • OUT2: Output for Amplifier 2
  • BIAS: Bias Adjustment Pin
  • COMP: Compensation Pin
  • VGCC: Voltage-Controlled Current Source Output
  • VCC+: Positive Current Source Power Supply

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the CA3280AE IC for a visual representation.

Key Features

  • Dual Operational Transconductance Amplifiers: Provides two OTAs for flexible signal processing and voltage control.
  • Wide Operating Voltage Range: Operates with a wide supply voltage range, making it suitable for various audio and voltage-controlled applications.
  • Bias Control: The bias pin allows for precise adjustment of the amplifier's operating point.
  • Low Distortion: The CA3280AE offers low distortion and high linearity, ensuring high-quality signal processing.
  • Compact Package: Available in a compact dual-inline package for easy integration into circuit designs.

Note: For detailed technical specifications, please refer to the CA3280AE datasheet.


  • Audio Signal Processing: Ideal for audio applications such as filters, amplifiers, and synthesizers.
  • Voltage-Controlled Amplifiers: Suitable for voltage-controlled amplifier circuits in electronic instruments.
  • Electronic Music Synthesizers: Commonly used in the design of electronic music synthesizers for sound modulation.


The CA3280AE is a dual OTA IC that provides operational transconductance amplifiers for signal processing and voltage control applications. It is a versatile component known for its performance in audio and electronic music circuits.

Usage Guide

  • Power Supply: Connect V- (Pin 3) to the negative power supply and V+ (Pin 4) to the positive power supply.
  • Input Signal: Apply input signals to IN1 (Pin 1) and IN2 (Pin 2) for processing by the operational transconductance amplifiers.
  • Output Connection: Use OUT1 (Pin 5) and OUT2 (Pin 6) for the amplified output signals.

Frequently Asked Questions

Q: What are the typical applications of the CA3280AE?
A: The CA3280AE is commonly used in audio circuits, voltage-controlled amplifiers, and synthesizers for signal processing and modulation.

Q: Is the CA3280AE suitable for low-distortion audio applications?
A: Yes, the CA3280AE offers low distortion and high linearity, making it suitable for high-quality audio signal processing.


For similar functionalities, consider these alternatives to the CA3280AE:

  • LM13600: A dual operational transconductance amplifier IC offering similar capabilities to the CA3280AE for audio and control applications.
  • SSM2020: This is a dual voltage-controlled amplifier IC known for its performance in audio and synthesis applications.



The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Manufacturer Maxim Integrated Product Category IC Chips

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