%0 Journal Article
%T Tunable Universal Filter with Current Follower and Transconductance Amplifiers and Study of Parasitic Influences
%A Jan Je ¨¢bek
%A Roman  otner
%A Kamil Vrba
%J Journal of Electrical Engineering
%D 2011
%I 
%R 10.2478/v10187-011-0051-x
%X A universal filter with dual-output current follower (DO-CF), two transconductance amplifiers (OTAs) and two passive elements is presented in this paper. The filter is tunable, of the single-input multiple-output (SIMO) type, and operates in the current mode. Our solution utilizes a low-impedance input node and high-impedance outputs. All types of the active elements used can be realized using our UCC-N1B 0520 integrated circuit and therefore the paper contains not only simulation results that were obtained with the help of behavioral model of the UCC-N1B 0520 element, but also the characteristics that were gained by measurement with the mentioned circuit. The presented simulation and measurement results prove the quality of designed filter. Similar multi-loop structures are very-well known, but there are some drawbacks that are not discussed in similar papers. This paper also contains detailed study of parasitic influences on the filter performance.
%K BOTA
%K DO-CF
%K current mode
%K SIMO filter
%K tunable filter
%K universal filter
%U http://versita.metapress.com/content/6327252193846110/?p=bbff6612542b46139c48c8c77dd66ecf&pi=0