{"title":"一种动态范围为62db，带宽为2MHz的五阶连续σ - δ调制器","authors":"R. Wu, J. Long, M. van de Gevel, G. Glassche","doi":"10.1109/RME.2007.4401800","DOIUrl":null,"url":null,"abstract":"This paper presents a single-bit fifth-order continuous-time sigma-delta modulator for UMTS application. To relax the linearity requirement of the first integrator, a low-pass filter is inserted in the negative feedback loop after the summing node. To reduce power consumption, the loop- filter is implemented using a feed-forward topology. Measurement results show that it achieves 62 dB SNDR with an over-sampling ratio of 32 over a 2 MHz bandwidth. The power consumption is 8 mW at a supply voltage of 2.5 V in a 1-poly 5- metal 0.24 mum CMOS technology.","PeriodicalId":118230,"journal":{"name":"2007 Ph.D Research in Microelectronics and Electronics Conference","volume":"197 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2007-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"A fifth-order continuous-time sigma-delta modulator with 62-dB dynamic range and 2MHz bandwidth\",\"authors\":\"R. Wu, J. Long, M. van de Gevel, G. Glassche\",\"doi\":\"10.1109/RME.2007.4401800\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a single-bit fifth-order continuous-time sigma-delta modulator for UMTS application. To relax the linearity requirement of the first integrator, a low-pass filter is inserted in the negative feedback loop after the summing node. To reduce power consumption, the loop- filter is implemented using a feed-forward topology. Measurement results show that it achieves 62 dB SNDR with an over-sampling ratio of 32 over a 2 MHz bandwidth. The power consumption is 8 mW at a supply voltage of 2.5 V in a 1-poly 5- metal 0.24 mum CMOS technology.\",\"PeriodicalId\":118230,\"journal\":{\"name\":\"2007 Ph.D Research in Microelectronics and Electronics Conference\",\"volume\":\"197 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2007-07-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2007 Ph.D Research in Microelectronics and Electronics Conference\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RME.2007.4401800\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2007 Ph.D Research in Microelectronics and Electronics Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RME.2007.4401800","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A fifth-order continuous-time sigma-delta modulator with 62-dB dynamic range and 2MHz bandwidth
This paper presents a single-bit fifth-order continuous-time sigma-delta modulator for UMTS application. To relax the linearity requirement of the first integrator, a low-pass filter is inserted in the negative feedback loop after the summing node. To reduce power consumption, the loop- filter is implemented using a feed-forward topology. Measurement results show that it achieves 62 dB SNDR with an over-sampling ratio of 32 over a 2 MHz bandwidth. The power consumption is 8 mW at a supply voltage of 2.5 V in a 1-poly 5- metal 0.24 mum CMOS technology.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
