Electronically tunable mixed-mode third-order universal filter using a single EX-CCCII

ABSTRACT

A new Extra-X Current Controlled Conveyor (EX-CCCII) based electronically tunable mixed-mode third-order universal filter has been proposed, which is composed of a single EX-CCCII, three capacitors and a load resistor. The proposed circuit employs a least number of components and can operate in four possible modes of operation, namely voltage mode (VM), current mode (CM), transadmittance mode and transimpedance mode (TIM). Five possible filtering functions – low-pass, high-pass, band-reject, band-pas and all-pass are realised through suitable selection of input signals, operable in three modes (VM, CM and TIM). The angular frequency (ω_o) of the proposed circuit is electronically tunable. Non-ideal effects and parasitic analysis is carried out. Exhaustive simulation results using ±0.5 V supply are included to support the present theory.

KEYWORDS:

• Current conveyor
• EX-CCCII
• universal filter
• third-order analog filter

Acknowledgments

This work is supported by the Ministry of Electronics and Information Technology (MeitY) Government of India under the “Visvesvaraya Ph.D scheme” with Awardee number “VISPHD-MEITY-877”. The authors thank anonymous reviewers and Editors for their useful comments and recommendations.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

Ministry of Electronics and Information Technology (MEITY) government of India.

Notes on contributors

Deepak Agrawal

Deepak Agrawal received the M.Tech and Ph. D. degree in the Department of Electronics Engineering, Aligarh Muslim University, Aligarh, India in 2014, and 2020, respectively. He was a recipient of the Visvesvaraya Fellowship from the Ministry of Electronics and Information Technology (MEITY), India in 2015. He is currently working as Assistant professor in the Department of Electronics and Communication Engineering, Meerut Institute of Engineering and Technology, Meerut, India. His research interest in Current Mode Circuit Design, Analog Signal Processing, etc. He is the author of nine International Journal papers and six International conferences.

Sudhanshu Maheshwari

Sudhanshu Maheshwari served Harcourt Butler Technological Institute, Kanpur (India) for around four years as Lecturer. He joined the Department of Electronics Engineering, Aligarh Muslim University in the year 2000 and is currently working as Professor since year 2013. He has been engaged in teaching and design of courses in the area of Analog Integrated Circuits and Current-mode Circuits. His research area relates to the design of Analog Signal Processing circuits. He has published more than 150 research papers, which includes more than 100 referred and high impact factor International Journal papers since year 2000. He is also the author of several book Chapters. The citation count of his publications is more than 3043, h index is 32, and i-10 index is 76. He has guided around 25 Master's Projects/Dissertations and 5 candidates for Ph. D. Thesis.