期刊名称：International Journal of Advanced Research in Computer Engineering & Technology (IJARCET)
印刷版ISSN：2278-1323
出版年度：2013
卷号：2
期号：8
页码：2504-2507
出版社：Shri Pannalal Research Institute of Technolgy
摘要：Adders are key components of digital design and are necessary part of any digital signal processor (DSP) architecture and microprocessors. Apart from the basic addition they also perform other operations such as subtraction, multiplication, division, address calculation. Adders of various bit widths are frequently required in Very Large Scale Integration (VLSI) circuits from processors to Application Specific Integrated Circuits. In most of these systems the adder lies in the critical path that determines the overall performance of the system. In this paper, different type of 8-bit full adders are analyzed and compared for transistor count, power dissipation, delay and power delay products. The investigation has been carried out with simulation runs on Tanner environment using 180nm & 90nm CMOS process technology at 2V. The result shows that the carry skip adder has the lowest power-delay product.
