feedback amplifiers theory and design

[...]... understanding of the resulting layouts, and new design strategies have been developed to optimise performance Nevertheless, the genuinely complex subject of feedback and its applications in analog electronics remain obscure even for the majority of graduate electronics students To this end, the main focus of this book will be to provide the reader with a real and deep understanding of feedback and feedback. .. graduate and postgraduate students who are already familiar with electronic devices and circuits, and who want to extend their knowledge to cover all aspects of the analysis and design of analog feedback circuits /amplifiers Although the material is presented in a formal and theoretical manner, much emphasis is devoted to a design perspective Indeed, the book can become a valid reference for analog IC designers... to thank Massimo Alioto, Walter Aloisi and Rosario Mita for their help during the correction of the draft A special thank is due to Professor John Choma jr., a scientific leader in feedback theory and feedback amplifiers, for his encouragement and inspiration in the development of this book We would like to thank our families and parents for their endless support and interest in our careers Gaetano Palumbo... main focus of this book will be to provide the reader with a real and deep understanding of feedback and feedback amplifiers Whenever possible and without any loss of generality, a simple and intuitive approach will be used to derive simple and compact equations useful in pencil -and- paper design Complex analytical derivations will be used only when necessary to elucidate fundamental relationships Consequently,... blank xiii PREFACE Feedback circuits and their related properties have been extensively investigated since the early days of electronics From the time scientific and industrial communities started talking about and working with active elements like vacuum tubes or transistors, until today, much literature and many scientific results have been published which reinforce the importance of feedback Improved... only with the impedance level change due to feedback Both techniques, namely the Rosenstark and the Choma methods, lead to exact results, but provide information only from a behavioural and approximated point of view In xv fact, it is also demonstrated that these methods can bestow a deeper understanding of feedback properties Chapter 4 analyses the frequency and step response of transfer functions characterised... to acquire a uniform view of the designer’s tasks and sidesteps the impractical distinction traditionally practised between Bipolar and MOS devices This model is then thoroughly utilised in the rest of the chapter and the book itself The three basic single-transistor configurations, which are the common-emitter, common-collector, common-base, for the bipolar transistor and common source, common-drain,... both these active components, valid at low and high frequencies are accordingly developed Feedback is introduced in Chapter 3 Feedback features are discussed in detail with particular emphasis on achievable advantages (and corresponding disadvantages) from a circuit perspective Moreover, after an overview of the numerous techniques proposed until now to analyse feedback circuits, the two techniques which... become a valid reference for analog IC designers who wish to deal more deeply with feedback amplifier features and their related design strategies, which are often partially –or even incorrectly– presented in the open literature For this purpose (and despite xiv maturity of the subject), novel formalisms, approaches, and results are described in this book For instance, a generic small-signal model applicable... three chapters The fundamental feedback amplifier architectures (Series-Shunt, Shunt-Series, Shunt-Shunt, and Series-Series topologies) are discussed assuming they are made with the general transistor introduced previously Then practical applications are given for the two analysis and frequency compensation approaches Chapter 7 focuses on harmonic distortion in feedback amplifiers Static non-linearity . RESPONSE ONE-POLE FEEDBACK AMPLIFIERS TWO-POLE FEEDBACK AMPLIFIERS TWO-POLE FEEDBACK AMPLIFIERS WITH A ZERO DOUBLET THREE-POLE FEEDBACK AMPLIFIERS WITH REAL POLES THREE-POLE FEEDBACK AMPLIFIERS WITH. with a real and deep understanding of feedback and feedback amplifiers. Whenever possible and without any loss of generality, a simple and intuitive approach will be used to derive simple and compact. class="bi x0 y0 w0 h0" alt="" FEEDBACK AMPLIFIERS This page intentionally left blank Feedback Amplifiers Theory and Design by Gaetano Palumbo University of Catania and Salvatore Pennisi University