Surachoke ThanapitakPrajuab PawarangkoonChutham SawiguuMahidol UniversityMahanakorn University of Technology2018-12-212019-03-142018-12-212019-03-142017-07-01Journal of Circuits, Systems and Computers. Vol.26, No.7 (2017)021812662-s2.0-85011685050https://repository.li.mahidol.ac.th/handle/20.500.14594/42338© 2017 World Scientific Publishing Company. This paper presents a compact second-order bandpass filter developed by combining the well-known flipped voltage follower circuit as a transconductance network with two capacitors. Operated in the subthreshold region, the filter's center frequency can be adjusted linearly by varying the bias current. Post-layout simulation using a 0.35-μm CMOS process confirms the suitability of the proposed filter in low-voltage, low-power environment.Mahidol UniversityComputer ScienceEngineeringArticleSCOPUS10.1142/S0218126617501122