Study on various GDI techniques for low power, high speed Full adder design

This paper is an outcome of a survey on different full adders design methodologies using gate diffusion input technique. Gate diffusion input is a technique of low power digital combination design. This technique as compared to other currently used logic design styles, allows less power consumption and reduced propagation delay for low power design of combinational digital circuits with minimum number of transistor. A comparison is also made on the basis of power, delay and area to find out the best possible design technique. This paper presents a detail performance of GDI Based 1-bit Full Adder Circuit for Low Power Applications. Different techniques like GDI, PTL-GDI and GDI-MUX for the designing of full adder is reviewed.