Design and Performance Comparison among Various types of Adder Topologies

In the area of Very Large Scale Integration (VLSI) design, summing circuits are one of the most widely used entities in processor data path architecture. With the advances in VLSI technology, research works are emerging on to design an architecture with low power consumption, high speed, less area or the combination of them. In this paper, we have presented the implementation of various 16bit adder architectures of Ripple Carry Adder (RCA), Carry Lookahead Adder (CLA) and Carry Skip Adder (CSA)) and also including parallel prefix adders like Spanning Tree Adder (STA), Kogge Stone Adder (KSA), Sparse Kogge Stone Adder (SKA) and Brent Kung Adder (BKA).