PERFORMANCE ANALYSIS OF 4 -BIT CARRY LOOK AHEAD ADDER USING GATE DIFFUSION INPUT (2023)
G.Suresh , M. Sasi kumar, N. Charan, M.Surya karthikeya, N. Jaya prakash, P.Sampath JCR. 2023: 201-208
Day-by-day, the users of electronic devices such as computers, laptops, mobile phones, and tablets have been increasing gradually. Almost all people are using electronic devices or electronic gadgets every single day. So to satisfy the people’s need, we the engineers or the designers or the developers have to deal with the parameters, such as power consumption, area, energy required, and speed of the devices. There are so many design styles of adders available, such as Ripple carry adder, carry select adder, carry skip adder, Carry look-ahead adder, Carry increment adder, Carry save adder, and Carry bypass adder. The Ripple carry adder is the compact design among all available adders but the computation speed is too low. The Carry look ahead adders and Carry select adders are so fast as compared to Ripple carry adder. To design a high-speed low-power consumed with less area ICs, the designers have to focus on delay time, power consumption, and area occupied by the ICs. Different logic styles have been deliberately used to reduce the power consumption and increase the speed of the performance. Some of them are static CMOS logic, dynamic CMOS logic, dual rail domino logic, pseudo NMOS logic, pass transistor logic (PTL). Among these logic styles GDI technique is the most powerful technique used to reduce the power consumption, propagation delay and area of digital circuits, but the main disadvantage of PTL technique is that it will degrade the output. So, to overcome the problem faced with PTL technique, gate diffusion input (GDI) has been purposively used to design all the logic gates which are required to design a Carry look-ahead adder to achieve the parameters, like low power consumption, reduced delay time, energy efficient, and less transistor counts.
This is an open access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles in this journal without asking prior permission from the publisher or the author. This is in accordance with the Budapest Open Access Initiative (BOAI) definition of open access.
The articles in Journal of Critical Reviews are open access articles licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc-sa/3.0/) which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
Copyright � 2021 Journal of Critical Reviews All Rights Reserved. Subject to change without notice from or liability to Journal of Critical Reviews.
For best results, please use Internet Explorer or Google Chrome
Journal of Critical Review, Tower 23/4,
Kuala Lumpur, malaysia