{"title":"萨伦键低通滤波器阻带衰减的改进","authors":"Hsin-Wen Ting, Hung-Yu Wang","doi":"10.1109/ISNE.2010.5669175","DOIUrl":null,"url":null,"abstract":"A Sallen-Key low-pass filter configuration with improved stop-band attenuation is presented. The proposed configuration simply connects an additional capacitor which is in parallel to the filter's output to effectively reduce the high-frequency impedance and consequently the undesired high-frequency feedthrough. The relationship between the additional capacitor and high-frequency feedthrough is also investigated to verify its feasibility. The proposed Sallen-Key low-pass filter configuration combines the advantages of simplicity and improved stop-band attenuation which make it attractive for practical application. The simulation and measurement results also confirm the theoretical prediction.","PeriodicalId":412093,"journal":{"name":"2010 International Symposium on Next Generation Electronics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"10","resultStr":"{\"title\":\"Improvement of stop-band attenuation for the Sallen-Key low-pass filter\",\"authors\":\"Hsin-Wen Ting, Hung-Yu Wang\",\"doi\":\"10.1109/ISNE.2010.5669175\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A Sallen-Key low-pass filter configuration with improved stop-band attenuation is presented. The proposed configuration simply connects an additional capacitor which is in parallel to the filter's output to effectively reduce the high-frequency impedance and consequently the undesired high-frequency feedthrough. The relationship between the additional capacitor and high-frequency feedthrough is also investigated to verify its feasibility. The proposed Sallen-Key low-pass filter configuration combines the advantages of simplicity and improved stop-band attenuation which make it attractive for practical application. The simulation and measurement results also confirm the theoretical prediction.\",\"PeriodicalId\":412093,\"journal\":{\"name\":\"2010 International Symposium on Next Generation Electronics\",\"volume\":\"24 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-12-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"10\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 International Symposium on Next Generation Electronics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISNE.2010.5669175\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 International Symposium on Next Generation Electronics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISNE.2010.5669175","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Improvement of stop-band attenuation for the Sallen-Key low-pass filter
A Sallen-Key low-pass filter configuration with improved stop-band attenuation is presented. The proposed configuration simply connects an additional capacitor which is in parallel to the filter's output to effectively reduce the high-frequency impedance and consequently the undesired high-frequency feedthrough. The relationship between the additional capacitor and high-frequency feedthrough is also investigated to verify its feasibility. The proposed Sallen-Key low-pass filter configuration combines the advantages of simplicity and improved stop-band attenuation which make it attractive for practical application. The simulation and measurement results also confirm the theoretical prediction.
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