Analog Electronic Circuits - Vol 4 | 76. Differential Amplifier : Basic Structure and Principle of Operation (Contd.) by Abraham | Learn Smarter
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76. Differential Amplifier : Basic Structure and Principle of Operation (Contd.)

The chapter provides a comprehensive analysis of the differential amplifier's structure and operation, focusing on its basic principles using BJTs. Key aspects include the understanding of differential and common mode gains, along with modifications to enhance performance through alternative configurations. Insights into circuit analysis and application are also presented, with attention on small signal equivalents and their impact on differential amplification.

Sections

  • 76.1

    Differential Amplifier: Basic Structure And Principle Of Operation (Contd.)

    This section explores the concept of differential amplifiers, focusing on their basic structure and operational principles.

    Learning Practice

  • 76.1.1

    Introduction To Differential Amplifier Variants

    This section covers the various structures and principles of differential amplifiers, focusing on their functionality and analysis.

    Learning Practice

  • 76.1.2

    Equivalent Circuit Description

    This section discusses the equivalent circuit of a differential amplifier, focusing on its structure and principles of operation.

    Learning Practice

  • 76.1.3

    Signal Feeding And Output Analysis

    This section describes the function and analysis of differential amplifiers, including their signal feeding mechanisms and output analysis using BJT circuits.

    Learning Practice

  • 76.1.4

    Understanding Emitter Node Behavior

    This section focuses on understanding the behavior of the emitter node in differential amplifiers and how it operates in common emitter and common collector configurations.

    Learning Practice

  • 76.1.5

    Differential Mode Operation

    Differential mode operation involves analyzing a differential amplifier's response to signals applied at both inputs, focusing on how the output signals relate to their inputs in both differential and common modes.

    Learning Practice

  • 76.1.6

    Common Mode Operation

    This section discusses the common mode operation in differential amplifiers, including how it contrasts with differential mode operation, its significance, and the expression for common mode gain.

    Learning Practice

  • 76.1.7

    Summary And Conclusion

    The section summarizes the operation and gain characteristics of the differential amplifier, highlighting the differential and common mode gains.

    Learning Practice

References

Lecture 76.pdf

Class Notes

Memorization

What we have learnt

  • The differential amplifier ...
  • Differential and common mod...
  • Modification of resistor co...

Final Test

Revision Tests