What This Document Is
This document represents Lecture Twelve from the Introduction to Microelectromechanical Systems (MEMS) course (ELENG 247A) at the University of California, Berkeley. It delves into the crucial realm of data conversion, building upon previous lectures concerning filter design and analog circuit fundamentals. This lecture provides a focused exploration of the techniques and architectures used to bridge the gap between the continuous analog world and the discrete digital systems essential for modern electronics.
Why This Document Matters
This lecture is particularly valuable for students seeking a strong foundation in mixed-signal circuit design. It’s essential for anyone planning to work with sensors, signal processing systems, or communication technologies. Understanding data converters is critical for effectively interfacing analog front-ends with digital processing back-ends. Reviewing this material before tackling advanced system design projects or preparing for examinations will significantly enhance comprehension and performance.
Topics Covered
* Switched-capacitor filter summaries and performance comparisons
* Fundamental principles of data conversion processes
* Architectures for Digital-to-Analog (D/A) converters
* Architectures for Analog-to-Digital (A/D) converters, including Nyquist rate and oversampled converters
* Key considerations in converter design, including practical implementations and desensitization techniques
* Figures of merit and current performance trends in data converter technology
* Applications of data converters in real-world systems
What This Document Provides
* A recap of previously discussed filter topologies and their performance characteristics.
* An overview of the core concepts behind analog-to-digital and digital-to-analog conversion.
* A survey of common data converter architectures and their respective strengths and weaknesses.
* References to further reading materials for in-depth study of specific converter types.
* Illustrative examples of data converter integration within complex systems, such as cellular phones.
* A foundational understanding of the trade-offs involved in selecting appropriate data converter solutions for various applications.
