{"title":"Analysis and design of Flash analog to digital converter for ultra wide band application","authors":"Piyush. V. Kanodiya, A. Naik","doi":"10.1109/NUICONE.2011.6153273","DOIUrl":null,"url":null,"abstract":"Ultra-Wideband (UWB) communication is a recent high speed wireless technology that uses sub-nano second pulses to transmit information. According to United States Federal Communications Commission (FCC), a UWB technology is a form of wireless communication in which signals occupy a wide bandwidth, greater than the lesser of 500MHz or 20% of the center frequency of the signal is consider as an ultra wide band signal. A high speed low/medium resolution Analog-to-Digital converter (ADC) is required for processing the UWB signal. Considering latency and conversion speed, the flash ADC is often the most preferred selection in high-speed communication applications. Therefore, a 5-bit Flash ADC with 500Msamples/s sampling rates has been analyzed and designed. This 5-bit Flash ADC requires 31 comparators, resistor ladder of 32 resistors and thermometer-to-binary code converter (TC-to-BC). This ADC consumes 13.64mw from 1.8V supply voltage at 500MS/s with total conversion time of 1.135ns. The simulations of all the designs are done in cadence UMC 0.18μm technology with a 1.8V power supply.","PeriodicalId":206392,"journal":{"name":"2011 Nirma University International Conference on Engineering","volume":"54 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 Nirma University International Conference on Engineering","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/NUICONE.2011.6153273","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
Ultra-Wideband (UWB) communication is a recent high speed wireless technology that uses sub-nano second pulses to transmit information. According to United States Federal Communications Commission (FCC), a UWB technology is a form of wireless communication in which signals occupy a wide bandwidth, greater than the lesser of 500MHz or 20% of the center frequency of the signal is consider as an ultra wide band signal. A high speed low/medium resolution Analog-to-Digital converter (ADC) is required for processing the UWB signal. Considering latency and conversion speed, the flash ADC is often the most preferred selection in high-speed communication applications. Therefore, a 5-bit Flash ADC with 500Msamples/s sampling rates has been analyzed and designed. This 5-bit Flash ADC requires 31 comparators, resistor ladder of 32 resistors and thermometer-to-binary code converter (TC-to-BC). This ADC consumes 13.64mw from 1.8V supply voltage at 500MS/s with total conversion time of 1.135ns. The simulations of all the designs are done in cadence UMC 0.18μm technology with a 1.8V power supply.