Computer Methods for Analysis

Mixed-mode switching circuits disTInguish themselves from other circuits

by including switches that are either clocked externally or controlled

internally. These circuits have found broad applicaTIons in telecommunicaTIon

networks, instrumentaTIon, and power electronic systems, to

name a few. It is the emergence of switched capacitor networks in the

early 1970s and switched current circuits in late 1980s that sparked

a broad interest in and the rapid development of computer methods

and numerical algorithms for analysis and design of mixed-mode switching

circuits. Recent advance in mixed analog-digital circuits and the

systems-on-chip realization of complex electronic systems have further

stimulated the enthusiasm of both the academia and industry in mixedmode

switching circuits as these circuits provide a viable and yet economical

means to realize both analog and digital systems on a silicon

substrate using low-cost digitally-oriented CMOS technologies.

As compared with time-invariant circuits, the time-varying characteristics,

incomplete charge transfer, inconsistent initial conditions, and

th under-sampling of broadband noise of mixed-mode switching circuits

significantly complicate the analysis of these circuits, both in the time

domain and frequency domain. Since the early 1970s, a significant effort

has been made on the development of computer methods for the

analysis and design of mixed-mode switching circuits. Many novel computer

methods and numerical algorithms have emerged. A systematic

presentation of these methods and an in-depth assessment of their advantages

and limitations, however, are not available presently. This book is an

attempt to summarize the recent advance in computer methods for mixed-mode switching circuits and to provide an in-depth and comprehensive

assessment on the pros and cons of these methods.