Lei Zhou, Danyu Wu, Fan Jiang, Jin Wu, Zhi Jin, Xinyu Liu
{"title":"A 2GSps 12bit DAC with SFDR >57.5dBc up to Nyquist bandwidth","authors":"Lei Zhou, Danyu Wu, Fan Jiang, Jin Wu, Zhi Jin, Xinyu Liu","doi":"10.1109/BCTM.2013.6798180","DOIUrl":null,"url":null,"abstract":"In this paper we present a 2GSps 12bit current steering digital-to-analog converter (DAC), in 100G Ft 0.18μm SiGe HBT technology. An improved switching sequence is proposed to compensate the gradient error and reduce the impact of cell-dependent-delay-variation. According to measured results, the test chip achieved a DNL/INL of 0.6/0.95 LSB respectively. The measured SFDR at low frequency is above 72dBc, and the lowest SFDR up to Nyquist frequency is above 57.5dBc.","PeriodicalId":272941,"journal":{"name":"2013 IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE Bipolar/BiCMOS Circuits and Technology Meeting (BCTM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/BCTM.2013.6798180","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 4
Abstract
In this paper we present a 2GSps 12bit current steering digital-to-analog converter (DAC), in 100G Ft 0.18μm SiGe HBT technology. An improved switching sequence is proposed to compensate the gradient error and reduce the impact of cell-dependent-delay-variation. According to measured results, the test chip achieved a DNL/INL of 0.6/0.95 LSB respectively. The measured SFDR at low frequency is above 72dBc, and the lowest SFDR up to Nyquist frequency is above 57.5dBc.