USING BRENT KUNG ADDER DESIGNING OF LOW POWER AND HIGH SPEED CARRY SELECT ADDER

In this paper, Carry Select Adder (CSA) structures are proposed utilizing parallel prefix adders. Rather than utilizing double Ripple Carry Adders (RCA), parallel prefix viper i.e., Brent Kung (BK) snake is utilized to outline Regular Linear CSA. Adders are the essential building obstructs in advanced incorporated circuit based plans. Swell Carry Adder (RCA) gives the smaller outline however takes longer calculation time. The time basic applications utilize Carry Look-ahead plan (CLA) to infer quick outcomes however they prompt increment in territory. Convey Select Adder is a bargain amongst RCA and CLA in term of zone and postponement. Deferral of RCA is extensive in this manner we have supplanted it with parallel prefix viper which gives quick outcomes. In this paper, structures of 16-Bit Regular Linear Brent Kung CSA, Modified Linear BK CSA, Regular Square Root (SQRT) BK CSA and Modified SQRT BK CSA are composed. Power and postponement of all these snake designs are figured at various info voltages. The outcomes portray that Modified SQRT BK CSA is superior to anything the various viper models as far as power yet with little speed punishment. The outlines have been incorporated at 45nm innovation utilizing Tanner EDA instrument