• VIRAJ GOTMARE
• DR. PANKAJ AGRAWAL

This paper describes the comparison between the hybrid adders. Adders are always used in many data-processing systems to perform fast arithmetic operations. The carry select adder (CSA) is a high speed adder. It provides good compromise between RCA and CLA. The ripple carry adder (RCA) has a most compact design but it takes longer computation time. The time critical applications uses carry look-ahead adder (CLA) to derive fast result but it required a large area. In this work we compared hybrid adders on the basis of delay, power and area. This design has been synthesized by Spartan 3 family with XC3S400 device.

Adder, carry select adder, Ripple carry adder, Carry look-ahead adder, VHDL code.

"COMPARISON OF 32-BIT HYBRID ADDERS IN VHDL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.3, Issue 6, page no.107-109, June-2016, Available :http://www.jetir.org/papers/JETIR1606019.pdf

"COMPARISON OF 32-BIT HYBRID ADDERS IN VHDL", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.3, Issue 6, page no. pp107-109, June-2016, Available at : http://www.jetir.org/papers/JETIR1606019.pdf