Stopband Tunable Multifunctional Gm-C Filter based on OTA with Three-Input/Single-Output

• Published in: The Journal of The Institute of Internet, Broadcasting and Communication Vol. 15; no. 5; pp. 201 - 206
• Main Authors: Basnet, Barun, Bang, Jun-Ho, Song, Je-ho, Ryu, In-Ho
• Format: Journal Article
• Language: English
• Published: 한국인터넷방송통신학회 31.10.2015
• Subjects: 컴퓨터학
• ISSN: 2289-0238; 2289-0246
• DOI: 10.7236/JIIBC.2015.15.5.201

A new electronically stopband tunable filter is proposed with three-input single-output using Operational Transconductance Amplifier (OTA) in this paper. The proposed filter provides band pass, low pass and high pass multifunctional responses. Centre frequency (f _{c}) and quality factor (Q) of the realized filters could independently tuned without disturbing each other. Various network sensitivity and non-ideal characteristic analysis are done to check the sensitivity and parasitic effect of different circuit parameters. The CMOS realization of filter is done with 1.8V-0.18um process parameters and HSPICE simulation results are presented to assert the presented theory. KCI Citation Count: 0