{"title":"A contribution to the 2nd-order LP filters design","authors":"P. Martínek, M. Valenta, D. Ticha","doi":"10.1109/RADIOELEK.2011.5936460","DOIUrl":null,"url":null,"abstract":"This paper discusses some aspects of design and realization of the simple second-order low-pass building blocks (LP-SFB), suitable for less demanding anti-aliasing and reconstruction filters. The main attention is devoted to the ”single active device” solutions, based on CC-II type current conveyor or transconductance amplifier (OTA). As the template, the Rauch's multiple-feedback circuit was used. Presented SFBs show very low ω0 and Q sensitivities and, in contrast to the known Sallen-Key circuits, save good stop-band attenuation. Proposed design uses DE algorithm and allows almost independent tunning of ω0 and Q parameters.","PeriodicalId":267447,"journal":{"name":"Proceedings of 21st International Conference Radioelektronika 2011","volume":"17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 21st International Conference Radioelektronika 2011","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RADIOELEK.2011.5936460","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
This paper discusses some aspects of design and realization of the simple second-order low-pass building blocks (LP-SFB), suitable for less demanding anti-aliasing and reconstruction filters. The main attention is devoted to the ”single active device” solutions, based on CC-II type current conveyor or transconductance amplifier (OTA). As the template, the Rauch's multiple-feedback circuit was used. Presented SFBs show very low ω0 and Q sensitivities and, in contrast to the known Sallen-Key circuits, save good stop-band attenuation. Proposed design uses DE algorithm and allows almost independent tunning of ω0 and Q parameters.
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