HIGH SPEED AND LOWPOWER GDI BASED FULL ADDER

Abstract

Full adder is one of the fundamental digital block in the many electronic circuits. As the day by day scaling down the technology(Deep-sub micron level) power consumption becomes one of the primary concern for any portable electronic devices. In this paper our main motto is to design and implement the low power full swing full adder, using GDI (Gate Diffusion input )technique. Simulated full swing GDI based adder using the cadence virtuoso in 180nm technology. and also we conducted the a comprehensive study on different types of full adders and their performances with respect to SERF and 28 T circuits respectively.