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Abstract

The dual-quality reconfigurable approximate 5:2 compressor has the ability to switching between the exact and approximate operating modes during the runtime. It utilizes architecture of dynamic quality configurable parallel multipliers. The basic structure of the compressor consists two parts such as approximate mode and exact mode. In the approximate mode, dual-quality compressors having high speed and low power consumption at the cost of lower accuracy. The number of gates and delay has reduced by using 5:2 compressors. Each of these compressors has its own level of accuracy, delay and power dissipations in both approximate and exact modes. The efficiencies of these compressors in a 32-bit Dadda multiplier are evaluated in a 45nm standard CMOS technology by comparing their parameters with approximate multipliers. The developed 5:2 compressors used in more realization of multi-operand addition and partial product reduction. It gives an average of 46% lower delay and68% power consumption in the approximate mode. The effectiveness of these compressors is assessed in some image processing applications like image segmentation and image multiplication.

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How to Cite
M.Thangavel, & A.Kowsalya. (2019). Dual-quality 5:2 compressors for utilizing in dynamic accuracy configurable multipliers . International Journal of Intellectual Advancements and Research in Engineering Computations, 7(1), 259–267. Retrieved from https://ijiarec.com/ijiarec/article/view/984