Analog Circuit Design using Current-Mode Techniques

This book deals with the design of CMOS compatible analog circuits using current mode techniques. The chapters are organized in order of growing circuit complexity. The area of analog signal processing is introduced to readers as an evergreen subject of academics and research interest. The contents cover various interfacing circuits, different types of amplifiers, single-time constant networks and higher order networks for system design applications. Features: •Presents the design of CMOS analog circuits using the current-mode building blocks in a comprehensive manner•Covers several amplifiers, different types of current mode filters including electronically tune-able ones with ease of integration features•Discusses in detail the waveform generation circuits and their applications in communication systems•Presents advanced topics related to field programmable analog arrays•Proposes new current-mode activation function circuit for neural networks This book covers electronic tuning aspects of circuits with the help of solved examples and unsolved exercises. The contents include many non-linear applications using current-mode techniques. In form of signal generators, many oscillators for various communication and instrumentation systems are presented. Few current-mode configurable analog cells and their tuning aspects are covered. Some SPICE based results are given in support of presented circuits. Each chapter discusses the IC compatibility issue, which provides useful direction for carrying out laboratory exercises on the subject. The book is expected to serve as an ideal reference text for research, senior undergraduate and graduate students in the field of electrical, electronics, instrumentation and communications engineering. .

Chapter 1 SUBJECT INTRODUCTION 1.1Signals1.2Processing of Signals1.3Components1.4Design Techniques1.5Circuit Parameters1.6Need of Current-mode1.7Summarized Conclusion Chapter 2CURRENT-MODE BLOCKS 2.1 Current Conveyor2.2 Second generation Current Conveyor2.3Extra-X Current Conveyor 2.4 Differential Voltage Current Conveyor 2.5Current Controlled Current Conveyors2.6 Other Current-mode building blocks2.7IC Compatibility of blocks2.8 Concluding remarks Chapter 3 ANALOG INTERFACE AND AMPLIFIER CIRCUITS 3.1Voltage buffer3.2 Current buffer3.3Voltage to current converter3.4Current to voltage converter3.5Single ended voltage amplifiers3.6Single ended current amplifiers3.7Instrumentation amplifiers3.8Summing amplifiers3.9Further reading Chapter 4SINGLE TIME-CONSTANT CIRCUITS 4.1Lossy and lossless Integrators4.2Lossy and lossless Differentiators4.3Active Phase-shifting networks4.4Electronically tuneable circuits4.5First order multifunction filter4.6IC realizations of circuits4.7Supplementary Reading Chapter 5HIGHER ORDER ANALOG FILTERS 5.1Second order analog filters5.2Voltage mode CCII based filters5.3Second order current mode filters5.4Electronically tuneable filters5.5Voltage mode filters with high input impedance5.6Higher order filter design5.7Mixed mode filter circuits5.8Shadow filters5.9Summarized Conclusion Chapter 6NON-LINEAR APPLICATIONS 6.1Comparators 6.2Precision Rectifiers6.3Digital Modulators and detectors6.4 Current mode Logic gates6.5Multiplier/Divider circuits6.6IC compatibility of non-linear circuits6.7Summarized Conclusion Chapter 7WAVEFORM GENERATION CIRCUITS7.1Topic Introduction7.2Oscillator Realization Methods 7.3Quadrature Oscillator circuits7.4Multiphase oscillators7.5Electronically tuneable oscillator circuits7.6Circuits’ realization using ICs7.7Applications in Communication circuits7.8Summarized Conclusion Chapter 8CONFIGURABLE ANALOG BLOCKS 8.1The FPAA Concept8.2Need of configurable blocks8.3Current mode analog cells/block8.4Tuning of analog cells8.5IC compatibility aspects8.6SPICE results and Concluding remarks Chapter 9FUTURE OF ANALOG SYSTEMS 9.1Challenges for mixed signal environment9.2Migration to Current-mode techniques: a novel case sudy9.3System Design using Current mode techniques9.4 Research initiatives and future directions9.5Concluding Remarks

Sudhanshu Maheshwari obtained his Bachelor’s, Master’s and Doctoral degrees in Electronics Engineering from Z. H. College of Engineering and Technology, Aligarh Muslim University (AMU). He is working as full Professor in the Department of Electronics Engineering, AMU, Aligarh, India. He has been associated with teaching and research for more than 25 years in the area of Electronic Circuits and System Design, with specialization in Current mode analog signal processing. The prestigious world’s top 2% list of scientists by Elsevier and Stanford continuously includes his name in the subject area for last three years (2022, 2021, and 2020). He has published more than 150 research papers across the leading indexed international journals, guided many Doctoral and a large number of Master’s candidates in the area of current mode circuit design. He is on the reviewer panel of a large number of circuits and system journals.