Design of 12-Bit DAC Using CMOS Technology
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 6
Abstract
Digital-to-Analog Converter (DAC) is used to convert a digital form of input into an analog form of output. In this paper, a digital-to-analog converter which is based on the R-2R ladder is analyzed for low power consumption i.e. 27.04 mW, low active chip area i.e. .054 mm2 and low DNL i.e. 0.03. R-2R DAC is implemented using cadence virtuoso tool in 180nm CMOS process. The main components used are an operational amplifier and R-2R ladder network. Op-amp is made up of two stages. The first stage of op-amp consists of a differential amplifier and the second stage consists of common source amplifier. The first stage is used to get high gain and the second stage increases output swing and gain of the first stage.
Authors and Affiliations
Payal Jangra, Rekha Yadav
Keywords
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