What This Document Is
These are lecture notes from an Introduction to Microelectromechanical Systems (MEMS) course (ELENG 247A) at the University of California, Berkeley. Specifically, this installment focuses on the critical area of filter design within the context of MEMS, covering both continuous-time and switched-capacitor filter methodologies. The notes represent a detailed record of a lecture session, intended to supplement classroom learning and provide a focused resource for understanding advanced filter concepts.
Why This Document Matters
This resource is invaluable for students enrolled in an introductory MEMS course, particularly those specializing in analog circuit design or signal processing. It’s most beneficial when used in conjunction with textbook readings and homework assignments, offering a concentrated review of key lecture material. Engineers and researchers needing a refresher on fundamental filter topologies and their implementation in CMOS technology will also find these notes helpful. Understanding these concepts is foundational for designing and analyzing a wide range of MEMS devices and systems.
Topics Covered
* Continuous-time filter implementations and topology comparisons
* Switched-capacitor filter principles and applications
* Analysis of Gm-C filter designs and performance characteristics
* Non-idealities and high-frequency pole considerations in CMOS Gm-cells
* Optimization of integrator quality factor and channel length
* Source-coupled pair CMOS Gm-cell transconductance and linearity
* Measurement and understanding of harmonic distortion in filter circuits
What This Document Provides
* Detailed explanations of various filter architectures.
* Insights into the trade-offs between different filter designs.
* Examination of the impact of device characteristics on filter performance.
* Exploration of techniques for improving filter linearity and signal handling.
* Visual aids and diagrams illustrating key concepts and circuit configurations.
* A focused review of material presented in a university-level MEMS lecture.
