1st Edition

Analog Circuit Design using Current-Mode Techniques

By Sudhanshu Maheshwari Copyright 2023
    176 Pages 66 Color & 48 B/W Illustrations
    by CRC Press

    176 Pages 66 Color & 48 B/W Illustrations
    by CRC Press

    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.


    • 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
    1.1 Signals
    1.2 Processing of Signals
    1.3 Components
    1.4 Design Techniques
    1.5 Circuit Parameters
    1.6 Need of Current-mode
    1.7 Summarized Conclusion

    Chapter 2
    2.1  Current Conveyor
    2.2  Second generation Current Conveyor
    2.3 Extra-X Current Conveyor
    2.4  Differential Voltage Current Conveyor 
    2.5 Current Controlled Current Conveyors
    2.6  Other Current-mode building blocks
    2.7 IC Compatibility of blocks
    2.8  Concluding remarks

    Chapter 3
    3.1 Voltage buffer
    3.2  Current buffer
    3.3 Voltage to current converter
    3.4 Current to voltage converter
    3.5 Single ended voltage amplifiers
    3.6 Single ended current amplifiers
    3.7 Instrumentation amplifiers
    3.8 Summing amplifiers
    3.9 Further reading

    Chapter 4 

    4.1 Lossy and lossless Integrators
    4.2 Lossy and lossless Differentiators
    4.3 Active Phase-shifting networks
    4.4 Electronically tuneable circuits
    4.5 First order multifunction filter
    4.6 IC realizations of circuits
    4.7 Supplementary Reading

    Chapter 5
    5.1 Second order analog filters
    5.2 Voltage mode CCII based filters
    5.3 Second order current mode filters
    5.4 Electronically tuneable filters
    5.5 Voltage mode filters with high input impedance
    5.6 Higher order filter design
    5.7 Mixed mode filter circuits
    5.8 Shadow filters
    5.9 Summarized Conclusion

    Chapter 6
    6.1 Comparators
    6.2 Precision Rectifiers
    6.3 Digital Modulators and detectors
    6.4  Current mode Logic gates
    6.5 Multiplier/Divider circuits
    6.6 IC compatibility of non-linear circuits
    6.7 Summarized Conclusion

    Chapter 7 
    7.1 Topic Introduction  
    7.2 Oscillator Realization Methods 
    7.3 Quadrature Oscillator circuits
    7.4 Multiphase oscillators
    7.5 Electronically tuneable oscillator circuits
    7.6 Circuits’ realization using ICs
    7.7 Applications in Communication circuits
    7.8 Summarized Conclusion

    Chapter 8 

    8.1 The FPAA Concept
    8.2 Need of configurable blocks
    8.3 Current mode analog cells/block
    8.4 Tuning of analog cells
    8.5 IC compatibility aspects 
    8.6 SPICE results and Concluding remarks
    Chapter 9 
    9.1 Challenges for mixed signal environment
    9.2 Migration to Current-mode techniques: a novel case sudy
    9.3 System Design using Current mode techniques
    9.4  Research initiatives and future directions
    9.5 Concluding 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.