A NOVELIMPLEMENTATION OF HIGH SPEED MULTIPLIER USING BRENT KUNG CARRYSELECT ADDER

Abstract

Multiplication is one of the most significant operations in every computational system and a multiplier forms the core of
systems such as digital signal processing, image processing and microprocessor. Multiplier is an important element which
contributes to the major power consumption in any system. Hence a fast energy efficient multiplier is always needed in
electronics industry for fast computation of results. Recent applications of multipliers with various data lengths are always
required in VLSI from processors to application specific integrated circuits (ASICs). In this work the designs of two different
array multipliers is presented, one by using Ripple Carry Adder(RCA) based Carry Select Adder (CSLA) and Binary to
Excess-1 Converter (BEC) based RCA CSLA for addition of partial product terms and the results are compared with the
proposed multiplier using Brent Kung (BK) CSLA in partial product lines. The designs are synthesized using Quartus II
Software. This design will meet the challenging task in modern VLSI design with respect to area and delay.