NDLI: Wide Band Tunable Filter Design Implemented in CMOS

Content Provider	IEEE Xplore Digital Library
Author	Anderson, W.M. Wilamowski, B.M. Dundar, G.
Copyright Year	2007
Description	Author affiliation: Auburn Univ., Auburn (Anderson, W.M.; Wilamowski, B.M.)
Abstract	Generation of filters using operational transconductance amplifiers and capacitors (OTA-C) has become more and more popular. A simple yet effective method of analytical synthesis is presented that makes use of ladder circuits, which are much more widely understood. Given the ladder circuit of a filter of any order, an equivalent OTA-C filter can be easily synthesized. The synthesis process is shown for both a low pass and a band pass filter. Higher order filters can easily be synthesized by extending the design process described. The design of the band pass filter is implemented in CMOS with a linearly tunable OTA to show the effect of non-ideal elements. The CMOS filter implementation is capable of linear center frequency tuning across three degrees of magnitude. Because of the wide band width tunability, this type of design lends itself to intelligent frequency scanning techniques. Such a system, to be used in military applications, is presented as an application of this filter design.
Starting Page	219
Ending Page	223
File Size	533379
Page Count	5
File Format	PDF
ISBN	1424411475
DOI	10.1109/INES.2007.4283701
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-29
Publisher Place	Hungary
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wideband Band pass filters Circuit synthesis Tunable circuits and devices Frequency Transconductance Operational amplifiers Capacitors Process design Nonlinear filters
Content Type	Text
Resource Type	Article

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