Design of high speed carry save adder using carry lookahead adder

Author

Javali, Ravikumar A. ; Nayak, Ramanath J. ; Mhetar, Ashish M. ; Lakkannavar, Manjunath C.

Author_Institution

Electron. & Commun. Dept., M.S. Ramahai Inst. of Technol., Bangalore, India

fYear

2014

Firstpage

33

Lastpage

36

Abstract

Addition is one of the essential operations in Digital Signal Processing (DSP) applications which includes Fast Fourier Transform (FFT), Digital filters, multipliers etc. With the advancements in technology, research is still going on to design a adder that performs addition in flash of time. One of such high speed adder is Carry Save Adder (CSA). In this paper we have designed High Speed Carry Save Adder (CSA) using Carry Look ahead adder in the final stage instead of using conventional ripple carry adder [1] so that speed increases by 27.5%.

Keywords

adders; carry logic; digital signal processing chips; fast Fourier transforms; logic design; CSA; DSP applications; FFT; carry lookahead adder; digital filters; digital signal processing; fast Fourier transform; high speed carry save adder; multipliers; ripple carry adder; Adders; Arrays; Digital signal processing; Fast Fourier transforms; Hardware design languages; Timing; Very large scale integration; CLA; CSA; CSelA; CSkA; Carry Save Adder; High speed; RCA;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits, Communication, Control and Computing (I4C), 2014 International Conference on

Print_ISBN

978-1-4799-6545-8

Type

conf

DOI

10.1109/CIMCA.2014.7057751

Filename

7057751