What This Document Is
This document represents a session from an introductory-level course on Microelectromechanical Systems (MEMS), specifically ELENG 247A at the University of California, Berkeley. It focuses on the design and analysis of filters, a crucial component in many MEMS applications for signal conditioning and data processing. The session delves into both continuous-time and switched-capacitor filter techniques, providing a comparative overview of their strengths and weaknesses. It builds upon prior lectures, referencing earlier material and expanding on core concepts.
Why This Document Matters
This material is essential for students and engineers seeking a solid foundation in analog circuit design for MEMS. It’s particularly valuable for those working on projects involving sensor interfaces, signal amplification, noise reduction, and data conversion. Understanding filter topologies and their performance characteristics is critical for optimizing MEMS system performance and ensuring accurate data acquisition. This session would be most helpful when studying analog circuit design, signal processing, or preparing for more advanced coursework in MEMS.
Topics Covered
* Continuous-time filter implementations (Gm-C filters)
* Performance comparison of different continuous-time filter designs
* Switched-capacitor filter fundamentals
* Emulation of resistors using switched capacitors
* Tradeoffs related to sampling rate selection in switched-capacitor filters
* Noise considerations in switched-capacitor networks
* Different types of switched-capacitor integrators (DDI and LDI)
* Application of filter designs to real-world scenarios (e.g., disk drive applications)
What This Document Provides
* Detailed exploration of various filter topologies and their characteristics.
* Discussion of the advantages and disadvantages of different implementation approaches.
* References to relevant academic publications for further study.
* Comparative analysis of filter performance metrics.
* Insights into the practical considerations for designing and implementing filters in MEMS systems.
* A summary of key concepts related to continuous-time and switched-capacitor filters.
