Tunable Gm-C Floating Capacitance Multiplier

Last modified: August 3, 2021
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Research Article: Tunable Gm-C Floating Capacitance Multiplier
Author: Wipavan Narksarp, Yongyuth Naras and Vinai Silaruam
Email: wipavan.nar@siam.edu
Department/Faculty: Department of Electrical Engineering, Faculty of Engineering, Siam University, Bangkok 10160
Published: 2018 15th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, Rajamangala University of Technology Lanna

Citation

Narksarp W,  Naras Y  and Silaruam V. (2018). Tunable Gm-C floating capacitance multiplier. In 2018 15th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (pp.413-416). Chiang Rai, Thailand: Rajamangala University of Technology Lanna.


ABSTRACT

—This paper presents a realization of Gm-C floating capacitance multiplier. It employs MOS transistors as transconductors and only one grounded capacitor. The circuit offers the attractive features of simple configuration, electronically tunable capacitance multiplication factor, low sensitivities to variation of active and passive elements and suitability for integrated circuit implementation. The parasitic effects of the transconductors on the proposed floating capacitance multiplier are investigated. The performance of the proposed circuit is demonstrated on second-order band-pass filter. The PSPICE simulations using TSMC 0.18 µm CMOS process parameter are also given to confirm the theoretical analysis.

Keywords— floating capacitance multiplier, grounded, capacitor, transconductor, high-pass filter, band-pass filter


Tunable Gm-C Floating Capacitance Multiplier

Faculty of Engineering, Siam University, Bangkok, Thailand

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