Universal current-mode active-C filter employing minimum number of passive elements
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KünyeYüce, E., Minaei, S., & Çiçekoğlu, O. (2006). Universal current-mode active-C filter employing minimum number of passive elements. Analog Integrated Circuits and Signal Processing, 46(2), 169-171.http://dx.doi.org./10.1007/s10470-005-0445-4
A universal current-mode active-C filter simultaneously realizing low-pass, band-pass and high-pass responses is proposed. The filter can also realize notch and all-pass responses with interconnection of relevant output currents. The presented filter employs four second-generation current controlled conveyors (CCCIIs) as active elements and only two capacitors as passive elements. The proposed active-C filter can be tuned electronically, and has low element sensitivities.