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Stopband Tunable Multifunctional Gm-C Filter based on OTA with Three-Input/Single-Output
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 Title & Authors
Stopband Tunable Multifunctional Gm-C Filter based on OTA with Three-Input/Single-Output
Basnet, Barun; Bang, Jun-Ho; Song, Je-ho; Ryu, In-Ho;
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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 () 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.
OTA;Multifunctional filter;Transconductance;Gm-C;Bandpass;
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