NDLI: Voltage-mode multifunction biquadratic filter based on simple CMOS OTAs

Content Provider	IEEE Xplore Digital Library
Author	Kumngern, M. Dejhan, K.
Copyright Year	2009
Description	Author affiliation: Telecommunications Engineering Department, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok 10520, Thailand (Kumngern, M.; Dejhan, K.)
Abstract	A voltage-mode versatile multifunction filter with four inputs and three outputs biquadratic filter based on simple CMOS operational transconductance amplifiers (OTAs) is presented. By appropriately connecting the input and output terminals, the proposed circuit can work as either a single-input multiple-output (SIMO) or a multiple-input single-output (MISO) filter without changing the circuit topology. When the circuit functions as a SIMO filter, it provides bandpass (BP), lowpass (LP) and bandstop (BS) voltage responses with grounded capacitors. When it functions as a MISO filter, the circuit can realize all the standard non-inverting and inverting second-order filter functions. The parameters ω0 and Q can be set orthogonally by adjusting the circuit components. For realizing all the filter responses, no critical matching condition is required, no inverting-type input signal is imposed and all the incremental parameter sensitivities are low. The simulation results confirm the theoretical analysis.
Starting Page	317
Ending Page	322
File Size	2067323
Page Count	6
File Format	PDF
ISBN	9781424441518
DOI	10.1109/CSPA.2009.5069242
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-03-06
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Operational amplifiers Circuit topology Matched filters Analytical models Circuit simulation Capacitors Voltage Band pass filters Joining processes Transconductance
Content Type	Text
Resource Type	Article

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