Analog Electronic Circuits - Vol 4 | 85. Usage of current mirror (Part-C) by Abraham | Learn Smarter
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics

Grades

Grade 8 Grade 9 Grade 10 Grade 11 Grade 12

Curriculum

CBSE ICSE IB
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

games
Typing
Memory
Math
English Adventures
Knowledge
85. Usage of current mirror (Part-C)

The chapter discusses the implementation of current mirrors in differential amplifiers, particularly focusing on BJT configurations. It emphasizes the advantages of using current mirrors for setting bias currents and how these configurations impact both common mode and differential mode gains. The chapter also compares passive and active loads and explores the significance of the common mode rejection ratio.

Sections

  • 85.1

    Analog Electronic Circuits

    This section explores the use of current mirrors in BJT differential amplifiers, detailing circuit designs and their benefits in enhancing amplification performance.

    Learning Practice

  • 85.1.1

    Usage Of Current Mirror (Part-C)

    This section discusses the usage of current mirrors in differential amplifiers using BJT.

    Learning Practice

  • 85.2

    Differential Amplifier Using Bjt

    This section covers the design and analysis of differential amplifiers using BJTs, focusing on the incorporation of current mirrors for biasing.

    Learning Practice

  • 85.2.1

    Current Mirror Circuit

    This section discusses the use of current mirror circuits in differential amplifiers, specifically focusing on BJT implementations.

    Learning Practice

  • 85.2.2

    Replacing Passive Load

    This section discusses the replacement of passive loads in differential amplifiers with active loads using current mirrors to enhance performance.

    Learning Practice

  • 85.2.3

    Modified Circuit

    This section discusses the modified differential amplifier circuit using BJTs with a current mirror for improved performance.

    Learning Practice

  • 85.2.4

    Analysing Gain

    This section focuses on the analysis of differential amplifiers utilizing BJTs and MOSFETs while highlighting the role of current mirrors in setting tail currents.

    Learning Practice

  • 85.3

    Common Mode And Differential Mode Gain

    This section covers the principles of common mode and differential mode gain in differential amplifiers, particularly focusing on configurations using BJTs and MOSFETs.

    Learning Practice

  • 85.3.1

    Small Signal Equivalent Circuit

    This section discusses the small signal equivalent circuit of differential amplifiers using BJTs and current mirrors, emphasizing modifications that enhance performance.

    Learning Practice

  • 85.3.2

    Active Load Operations

    This section discusses the implementation of active load operations in differential amplifiers using BJTs and current mirrors.

    Learning Practice

  • 85.4

    Common Mode Rejection Ratio

    This section discusses the concept of Common Mode Rejection Ratio (CMRR) in differential amplifiers, particularly in the context of using BJTs and current mirrors.

    Learning Practice

  • 85.4.1

    Common Mode Gain Analysis

    This section discusses the analysis of common mode gain in differential amplifiers using BJTs and current mirrors.

    Learning Practice

  • 85.4.2

    Voltage Definitions

    This section covers voltage definitions and their importance in analog electronic circuits.

    Learning Practice

  • 85.5

    Summary And Conclusion

    This section synthesizes the key findings from the chapter on differential amplifiers using BJTs and MOSFETs, highlighting the significance of current mirrors in improving circuit design.

    Learning Practice

  • 85.5.1

    Impact Of Current Mirror

    This section discusses the implementation of current mirrors in differential amplifiers, emphasizing their role in enhancing circuit performance.

    Learning Practice

  • 85.5.2

    Final Remarks

    This section summarizes the concepts of current mirrors and their applications in differential amplifiers, particularly focusing on BJTs and MOSFETs.

    Learning Practice

References

Lecture 85 Part A.pdf

Class Notes

Memorization

What we have learnt

  • Current mirrors are essenti...
  • Replacing passive loads wit...
  • The common mode rejection r...

Final Test

Revision Tests