caa a22 4500 463206169 CHVBK 20180405153126.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s00202-006-0051-1 doi (NATIONALLICENCE)springer-10.1007/s00202-006-0051-1 Electronically tunable low-component-count current-mode biquadratic filter using dual-output current followers [Elektronische Daten] [Worapong Tangsrirat, Danucha Prasertsom] In this paper, a realization of a current-controlled three-input single-output current-mode universal biquadratic filter using dual-output current followers (DO-CFs) as active components is described. Based on the use of the current-controlled conveyor working as the DO-CF, the proposed circuit employs only two DO-CFs and two grounded capacitors that provide the advantage of an electronic tuning capability and is of special interest from the IC fabrication point of view. By suitably selecting three input signals, the filter can realize all of the standard biquadratic filtering functions, i.e., lowpass, bandpass, highpass, bandstop and allpass, all at a high impedance output which enables easy cascading in the current-mode operation. The natural angular frequency (ω o ) and the bandwidth (BW) of the proposed circuit can be tuned independently and electronically over a wide range by adjusting the external bias currents. In addition, no critical component matching conditions are required for all the filter response realizations, and both active and passive sensitivities are low. PSPICE simulation results are used to confirm the characteristics of the proposed circuit. Springer-Verlag, 2006 Biquadratic filter nationallicence Current follower (CF) nationallicence Current-mode circuit nationallicence Tangsrirat Worapong Faculty of Engineering and Research Center for Communication and Information Technology (ReCCIT), King Mongkut's Institute of Technology Ladkrabang (KMITL), Chalongkrung Rd., Ladkrabang, 10520, Bangkok, Thailand aut Prasertsom Danucha Faculty of Engineering and Research Center for Communication and Information Technology (ReCCIT), King Mongkut's Institute of Technology Ladkrabang (KMITL), Chalongkrung Rd., Ladkrabang, 10520, Bangkok, Thailand aut Electrical Engineering Springer-Verlag 90/1(2007-11-01), 33-37 0948-7921 90:1<33 2007 90 202 https://doi.org/10.1007/s00202-006-0051-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00202-006-0051-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tangsrirat Worapong Faculty of Engineering and Research Center for Communication and Information Technology (ReCCIT), King Mongkut's Institute of Technology Ladkrabang (KMITL), Chalongkrung Rd., Ladkrabang, 10520, Bangkok, Thailand aut NATIONALLICENCE 700 1- Prasertsom Danucha Faculty of Engineering and Research Center for Communication and Information Technology (ReCCIT), King Mongkut's Institute of Technology Ladkrabang (KMITL), Chalongkrung Rd., Ladkrabang, 10520, Bangkok, Thailand aut NATIONALLICENCE 773 0- Electrical Engineering Springer-Verlag 90/1(2007-11-01), 33-37 0948-7921 90:1<33 2007 90 202 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer