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83. Usage of current mirror (Part-A)
The chapter focuses on the applications of current mirror circuits in analog electronic circuits, specifically within amplifiers such as common emitter, common source, and differential amplifiers. It discusses the small signal models for current mirrors using both BJT and MOSFET technologies, emphasizing how these circuits can be utilized to enhance signal processing capabilities by mirroring currents for improved performance. Key applications and analysis methods for these circuits are also presented.
Sections
This section covers the usage of current mirrors in analog electronic circuits, focusing on their applications in various amplifier configurations.
This lecture discusses the applications of current mirrors in analog electronic circuits, particularly in amplifier configurations.
This section discusses various applications of current mirrors in analog electronic circuits, including amplifiers and differential amplifiers.
This section covers the analysis of small signal models in current mirrors, discussing their operational principles and applications in various amplifier configurations.
This section focuses on the application and analysis of current mirror circuits, particularly in amplifiers and differential amplifiers.
Current mirrors can significantly improve amplifier performance by providing stable biasing and load characteristics.
Small signal models are essential for analyzing circuits where current mirrors are implemented, ensuring accurate predictions of circuit behavior.
The challenges of matching transistors in current mirror applications can greatly affect the performance and efficiency of analog circuits.
Current Mirror
A current mirror is a circuit that copies (mirrors) a current flowing in one active device by controlling the current in another active device, ensuring consistent current levels in various applications.
Small Signal Model
A small signal model is a linear approximation used for circuit analysis under the assumption that signals of interest are small perturbations around a DC operating point.
Operational Amplifiers
Operational amplifiers are high-gain voltage amplifiers with differential inputs and a single-ended output, widely used in signal conditioning, filtering, and mathematical operations.
Practice Exercises
Total Questions
3
Estimated Time
6 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting