Udemy – Microelectronics – Biasing Concept in MOS Amplifiers

Biasing in MOS Analog Circuits

What you'll learn

Develop a deep understanding of MOS amplifier biasing using resistive-divider, self-biasing, and current mirror techniques for reliable analog design.
Learners will confidently analyze and design MOS biasing circuits to ensure stable operating points in analog amplifiers across varied applications.
Helps mitigate design risks such as bias point drift, thermal instability, and threshold variations through robust circuit techniques and design insight.
Expect to master key biasing methods, link DC analysis to amplifier behavior, and gain intuition to apply biasing schemes in real-world analog circuits.

Requirements

Udemy Audio Course on "Microelectronics - MOS Device Physics"

Description

This audiobook course, Fundamentals of Microelectronics Circuits – Biasing in MOS Amplifiers, provides an in-depth, audio-friendly exploration of essential biasing strategies used in MOS amplifier design. Biasing is one of the most fundamental concepts in analog circuit design, as it determines the operating region of a MOSFET and sets the stage for linear amplification. This course is crafted to help students and practitioners develop a strong intuition for how to establish stable and reliable operating points for MOS transistors across a wide range of applications.The course introduces the concept of the DC operating point—or quiescent point—which defines the steady-state behavior of the transistor and ensures that the amplifier operates in the saturation region for small-signal applications.From this foundation, the course delves into a variety of practical biasing techniques, with clear distinctions made between each method's structure, operation, and suitability for different circuit topologies. Key topics include resistive-divider biasing, where a pair of resistors is used to generate a stable gate voltage independent of process variations. We then examine resistive-divider biasing with source degeneration, which introduces a source resistor to improve the stability of the operating point and reduce the sensitivity to threshold voltage variations.The course also covers self-biasing configurations, where the gate and drain voltages are interrelated through feedback established via passive elements, enabling a compact and robust biasing scheme with minimal component count. Additionally, we explore biasing using current mirrors, a widely adopted technique in integrated circuits that facilitates accurate and consistent current referencing across multiple circuit branches. This method is critical in differential amplifiers and multi-stage analog blocks.Rather than simply describing the circuits, the course emphasizes conceptual clarity through intuitive reasoning, circuit walkthroughs, and voice-guided problem-solving. Verbal explanations walk listeners through KVL/KCL analyses, the role of MOSFET parameters in setting the bias point, and the influence of component choices on headroom, power consumption, and stability.To reinforce learning, the course features step-by-step audio derivations of bias conditions, using small-signal models where needed to build links between DC analysis and subsequent amplifier behavior. This approach helps bridge the gap between textbook theory and practical circuit intuition.By the end of the course, learners will have a firm grasp of how to implement and evaluate different MOS biasing techniques. They'll understand when and why to choose one method over another, and how these biasing methods form the backbone of high-performance analog designs.

Who this course is for

Undergraduate and Graduate Students, Analog and Digital Design Engineers
Homepage:

https://www.udemy.com/course/microelectronics-biasing-concept-in-mos-amplifiers/

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