Analysis of 8 Bit RCA adder at different nanometer regime

Adders are digital components which are widely in the digital integrated circuit design and are the important part of all digital applications like Digital Signal Processing (DSP), microprocessor applications. As the technology is scaling down, researchers are trying to design adders which are either high speed, low power consumption, less area. In this paper, the design of Ripple Carry Adder are discussed and are compared on the basis of their performance parameters such as area, delay and power distribution at 32nm and 45nm technology node has been compared. It is observed that the 32nm technology node even in all the parameters like delay area average power, power delay product, energy delay product gives better results. All the work has been carried out in Hspice software.