Comparative Analysis of Ladner-Fischer Adder and Han-Carlson Adder Parallel-Prefix Adder for Their Area, Delay and Power Consumption

Authors(1) :-Dr. V. Sidharthan

Parallel Prefix adders have been one of the most notable among more than a few designs proposed in the past. Parallel Prefix adders (PPA) are family of adders derived from the generally known carry look ahead adders. The need for a Parallel Prefix adder is that it is mostly fast when compared with ripple carry adders. The classical parallel prefix adder structures presented in the literature over the years optimize for logic depth, area, and fan-out and interconnect count of logic circuits. In this paper, a comparison of two 8-bit parallel-Prefix adders (Ladner-Fischer adder and Han-Carlson adder) in their area, delay, power is proposed. In this proposed system Ladner-Fischer adder and Han-Carlson adder parallel prefix adder are used for comparison. The results reveal that the proposed Han-Carlson adder Parallel-Prefix Adder is more competent than Ladner-Fischer Parallel-Prefix adder in terms of area, delay & power. Simulation results are compared and verified using Xilinx 8.1i software.

Authors and Affiliations

Dr. V. Sidharthan
Assistant Professor, Department of Electronics, Sri Ramakrishna College of Arts and Science, Coimbatore, Tamil Nadu, India

Parallel-Prefix Adder, Area, Power, Delay.

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Publication Details

Published in : Volume 4 | Issue 1 | January-February 2018
Date of Publication : 2018-02-28
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 920-923
Manuscript Number : IJSRSET1841234
Publisher : Technoscience Academy

Print ISSN : 2395-1990, Online ISSN : 2394-4099

Cite This Article :

Dr. V. Sidharthan, " Comparative Analysis of Ladner-Fischer Adder and Han-Carlson Adder Parallel-Prefix Adder for Their Area, Delay and Power Consumption, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 4, Issue 1, pp.920-923, January-February-2018.
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