{"title":"A 12-bit 10GSps ultra high speed DAC in InP HBT technology","authors":"Qi-Cheng Ye, Youtao Zhang, Xiaopeng Li, Yi Zhang","doi":"10.1109/ICAM.2017.8242128","DOIUrl":null,"url":null,"abstract":"In this paper a 12bit 10GSps current-steering digital-to-analog converter (DAC) in 280GHz fT 0.7um InP HBT technology is presented. The DAC core works in a double-sampling way, which reduces the maximum clock frequency by half. The double-sampling switch is separated to reduce the inter-symbol-interference. An improved current steer switch architecture is adopted to enhance high frequency dynamic performance. According to the simulation results, the chip achieved a DNL/INL of 0.7/0.8 LSB respectively. The SFDR at low frequency is above 71dBc, and the lowest SFDR up to Nyquist frequency is above 46.96dBc.","PeriodicalId":117801,"journal":{"name":"2017 2nd IEEE International Conference on Integrated Circuits and Microsystems (ICICM)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 2nd IEEE International Conference on Integrated Circuits and Microsystems (ICICM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICAM.2017.8242128","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
In this paper a 12bit 10GSps current-steering digital-to-analog converter (DAC) in 280GHz fT 0.7um InP HBT technology is presented. The DAC core works in a double-sampling way, which reduces the maximum clock frequency by half. The double-sampling switch is separated to reduce the inter-symbol-interference. An improved current steer switch architecture is adopted to enhance high frequency dynamic performance. According to the simulation results, the chip achieved a DNL/INL of 0.7/0.8 LSB respectively. The SFDR at low frequency is above 71dBc, and the lowest SFDR up to Nyquist frequency is above 46.96dBc.
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