What This Document Is
These are detailed teaching notes from ELENG 247A, Introduction to Microelectromechanical Systems, at UC Berkeley. Spanning 27 pages, this resource delves into the intricacies of analog-to-digital conversion (ADC) techniques, specifically focusing on advanced architectures beyond basic Nyquist rate converters. It builds upon foundational knowledge of signal processing and analog circuit design to explore methods for achieving high-resolution and efficient data acquisition. The notes are designed to complement lectures and provide a deeper understanding of the concepts presented in the course.
Why This Document Matters
This resource is invaluable for students enrolled in or preparing for courses on MEMS, analog circuit design, or signal processing. It’s particularly helpful when tackling assignments involving ADC design, performance analysis, and system-level considerations. Engineers working on data acquisition systems, sensor interfaces, or mixed-signal integrated circuits will also find these notes a useful reference. Reviewing these notes before exams or project work can solidify understanding and improve performance.
Topics Covered
* Bandpass Sigma-Delta Modulators: Exploring their architecture and advantages.
* ADC Figures of Merit: Understanding how to evaluate and compare different ADC designs.
* Oversampling Techniques: Investigating the benefits and trade-offs of oversampling in ADC systems.
* Noise Shaping: Analyzing how noise shaping impacts ADC performance.
* System-Level Considerations: Examining the integration of ADCs into larger systems.
* Dynamic Range and Resolution: Analyzing the relationship between these key ADC parameters.
* Performance Analysis: Investigating the impact of modulator order and oversampling ratio.
What This Document Provides
* Detailed explanations of bandpass modulator characteristics.
* Insights into the relationship between modulator order and achievable resolution.
* Discussion of key performance metrics for ADCs.
* References to relevant research papers for further exploration.
* A comprehensive overview of oversampled ADC principles.
* Examination of trade-offs between speed, resolution, and power consumption in ADC design.
