期刊名称:International Journal of Engineering and Computer Science
印刷版ISSN:2319-7242
出版年度:2014
卷号:3
期号:3
页码:4044-4048
出版社:IJECS
摘要:The analog to digital converters play a vital role in today‟s world of electronic systems. The requirement of present applicationsdemands is high speed and low power analog to digital converter. Out of the available ADCs Flash ADC is most popular for itshighest conversion rate and its wide applications. In this paper, a 1.5v, 3-bit 500MS/s CMOS flash ADC is presented in 0.180 μm.Improved calibration capabilities resulted in an INL and DNL smaller than 0.20 LSB with power dissipation of 2.48mw.FlashADC has major components like comparators, thermometer to binary encoder. The comparators are replaced by op-amp. A novelarchitecture is designed for thermometer to binary encoder by using Full adders. The applications of flash ADC include dataacquisition, satellite communication, radar processing, sampling oscilloscopes, and high-density disk drives
关键词:ADC (analog to digital converters); TOB (Thermometer to;Binary); FA (Full Adder); Comparator