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ABSTRACT
An approach to realising logic functions using analog building block is explored, with promising results in form of OR and NOR functions being tested with EXCCII as basic building current-mode block. The other functions like NAND and AND realisation is also presented. The proposed circuits employ current-mode operation and show low input and high output impedance, which makes these designs practically useable. The approach is expected to benefit the mixed signal design, without necessitating separate conventional digital blocks. Several possible application areas are thus suggested. PSPICE simulation results are shown in support of the proposed idea.
Acknowledgments
The author thanks anonymous reviewers for useful comments and Editor-in-Chief, Professor Akhtar Kalam, for recommending the paper.
Disclosure statement
No potential conflict of interest was reported by the author(s).
Additional information
Notes on contributors
Sudhanshu Maheshwari
Sudhanshu Maheshwari works as full Professor in the Department of Electronics Engineering, AMU, India. Hw has more than 26 years of teaching experience. His area of research is analog signal processing and design of current mode circuits. He has published more than 160 papers mostly in referred international journals, guided numerous Master’s dissertations and several Doctoral candidates.