A low voltage low power CMOS g_m-C first order all pass filter

ABSTRACT

A low voltage g_m-C first order all pass filter circuit is given which uses only two CMOS inverter-based transconductance elements and a capacitor in its realisation. The circuit provides first order all pass filter response without any passive component matching constraints. It uses low component count, possesses low incremental sensitivity, low power consumption and is compatible for monolithic implementation in CMOS technology. The filter is designed and verified using PSPICE simulation. The results on the realised filter verify the theory.

KEYWORDS:

• CMOS
• transconductance element
• g_m-C filters

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The authors would like to thank the Deanship of Scientific Research at Umm Al-Qura University for supporting this work by Grant Code: (22UQU4320299DSR03).

Notes on contributors

Iqbal A. Khan

Iqbal A. Khan received B. Sc. Engg, M.Sc. Engg. and Ph. D. degrees, in Electrical Engineering, all from Aligarh Muslim University, Aligarh, India, respectively in 1976, 1978 and 1987. He joined the Department of Electrical Engineering, Aligarh Muslim University in1979 as a Lecturer and was subsequently appointed as Reader in the Department of Electronics Engineering, of the same the University, in 1987. He became Professor in the same Department on July 26, 1998 and served there till September 2008. Prof. Iqbal also served as Provost of M. H. Hall of AMU, Aligarh, from July 11, 2002 to July 10, 2004. As a senior Provost he was nominated as member of Academic Council and University Court, AMU Aligarh. He was on extra-ordinary-leave from Aligarh Muslim University from Oct. 1992 to Aug. 1997 during which he served as Assistance Professor at the Department of Computer Engineering, Al Fateh University Tripoli, Libya where he also served as Head of the Department from Sept.1994 to Aug. 1997. He joined as Professor and Head of the Electrical and Computer Engineering Department, University of Nizwa, Sultanate of Oman, on September 8, 2008 where he continued till July 26, 2010. He was also nominated as member of Academic Council of University of Nizwa. He joined the Department of Electrical Engineering at Umm Al Qura University, Kingdom of Saudi Arabia on July 27, 2010 and continued till June 16, 2022. He teaches, and conducts research in VLSI circuits and systems design, digital and mixed signal circuits and systems. He has supervised 40 Master’s Dissertations, 6 Ph. D. Theses and has published over 142 technical papers in International Journals and Conference Proceedings. He also was Awarded Professor N.C. Saha Research Award for conducting best research work in the Faculty of Engineering & Technology during 1987-88 at AMU Aligarh, India and Awarded Best Research Paper Award by the System Society of India, at 14th National Systems Conference, held on March 12-14, 1991. The citations of his papers are over 2196 at International level. He is a Life Fellow of the Institution of Electronics and Telecommunication Engineers, India, Life Member of Systems Society of India, and Senior Member of the IEEE, USA.

M. I. Masud

M. I. Masud obtained his BS (Electronics Engineering) degree from COMSATS University Islamabad, Pakistan in 2007, M.Sc. (Electrical Engineering) from University of Engineering and Technology, Peshawar, Pakistan in 2010 and Ph. D. (Electrical Engineering) from Universiti Teknologi Malaysia in 2022. His research interests includes analog circuits, active filters, CNTFET and CMOS based circuits.