Abstract

Abstract:- Thispaper presents the design of 15- 4 compressor using 5-3 compressors as basic module.Four different types of approximate 5-3 compressors are used in a 15-4compressor for less power consumption and high pass rate. We have analyzed theresults in all the cases. A 16 × 16 bit multiplier is simulated using theproposed 15-4 compressor. Simulation results show that the multipliers withproposed approximate compressors achieve significant improvement in power ascompared to the multipliers with existing 15-4 compressor. Area of the proposedmultipliers are low as compared to other existing approximate multipliers.