Design and Analysis of Different Adders Using Reversible Logic Gates
S Nagaraj, Gajulapalli Mahitha Reddy, I Veera Manohar Reddy, G Vinay, J Maheswara Reddy, E Nikitha · 2025
The design and analysis of efficient adders are crucial for enhancing the performance of digital systems, particularly in arithmetic and signal processing applications. This paper presents the comparison of five different types of adders Ripple Carry Adder (RCA), Carry Increment Adder (CIA), Carry Skip Adder(CSKA),Carry Select Adder (CSLA), and Carry Save Adder (CSA) using Basic logic gates and Reversible logic gates. Reversible logic is an emerging computational model that offers reduced power dissipation, which is a significant advantage in low-power digital circuit design. Each adder type is analyzed in terms of its logical structure, delay, area, and power consumption, with the aim of identifying how reversible gates can optimize these parameters. The implementation of basic reversible gates such as the Toffoli gate, Peres gate and Feynman gate in constructing the adders and compares their performance with traditional adders with basic logic gates. Through simulation and performance metrics, this paper highlights the potential of reversible logic in reducing energy consumption and enhancing speed in arithmetic operations. The results suggest that reversible logic can provide a promising avenue for the development of energy efficient and high-performance adders in future digital systems. The analysis of different adders using reversible logic gates is synthesized in Xilinx 14.7. In overall results adders using reversible gates compared to adders using normal gates there is decreasing power and area and slight increase in delay.