Comparative Analysis of 3-2 Adder Compressor for High¬¬-Speed Applications

Abstract

Adder compressors (ACs) are essential components in high-performance computing applications, including multipliers, machine learning, discrete transforms, and filters, due to their ability to perform efficient multi-operand addition in parallel data paths. This paper investigates the robustness of the 3-2 adder compressor designed using predictive 18nm FinFET technology, focusing on the impact of voltage scaling. The study highlights the advantages of FinFET technology in reducing power dissipation and improving speed compared to traditional MOSFET technology. Simulation results demonstrate that FinFET-based adder compressors exhibit a significant reduction in power-delay product (PDP) (95-99%) and a greater decrease in sum delay (54.68%) compared to MOSFETs (17.70%). However, FinFET's carry delay shows an increase (66.75%) compared to MOSFET's more consistent reduction (11.50%), indicating that the choice between FinFET and MOSFET may depend on specific application requirements.