• B.Nancharaiah
• L.Prathyusha

Approximate computing is an effective method for applications with error-tolerance because it can trade off accuracy for power. Addition or expansion may be a key crucial work for applications. In this paper, a high- speed accuracy-configurable adder is proposed, it is based on the conventional carry look-ahead adder, and its configurability of exactness is accomplished by masking the carry propagation at runtime. The proposed 16-bit Accuracy configurable adder reduced critical path delay and area compared with CLA. In addition,the Experimental Results show that the proposed adder accomplished the original purpose of simultaneously optimizing both critical path delay and area without reducing accuracy. Compared to other adders previously studied, the proposed adder delivers significant delay of 4.936ns and speedup with a small area overhead than those of the conventional CLA with delay of9.169ns.

Accuracy-configurable adder; low-power adder; approximate computing; high-speedadder.

"HIGH SPEED CONFIGURABLE ADDER FOR APPROXIMATE COMPUTING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.377-385, June 2019, Available :http://www.jetir.org/papers/JETIR1906R93.pdf

"HIGH SPEED CONFIGURABLE ADDER FOR APPROXIMATE COMPUTING", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp377-385, June 2019, Available at : http://www.jetir.org/papers/JETIR1906R93.pdf