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Purpose – The purpose of this paper is to present two new follower‐based current‐mode multifunction filters. Each of the proposed circuits can realize highpass, bandpass and lowpass filters, simultaneously. Design/methodology/approach – The input terminals of the proposed current‐mode biquadratic filters are virtual grounded. The output terminals of the proposed circuits can be easily cascaded with the similar sections. Findings – Highpass, bandpass and lowpass filters can be obtained simultaneously from the proposed circuits using only one or two followers. Originality/value – The paper presents new ideas for follower applications.
Microelectronics International – Emerald Publishing
Published: Jan 20, 2012
Keywords: Circuit networks; Frequencies; Signal processing; Current‐mode; Active filters
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