PERFORMANCE COMPARISON OF FINFET-BASED ENERGY RECOVERY ADDER CIRCUITS

Abstract

The growing demand for secure devices (such as radio frequency identification tags, wireless sensor networks, and smart cards) and the widespread use of the Internet of Things (IoT) have necessitated the secure and energy-efficient design of IoT devices. To date, most of the previous investigations carried out regarding secure devices have focused on the implementation of adiabatic logic circuits for ultra-low power applications. However, to investigate various applications of adiabatic logic circuits, it is essential to analyze their performance characteristics. In this work, the performance of fin field-effect transistor (FinFET)-based adiabatic logic styles using the 4-bit Brent-Kung adder as a reference was evaluated and compared. The simulations performed using Berkeley short-channel insulated-gate common multi-gate FinFET models at 45 nm technology node indicated significant differences in energy consumption, area occupied, peak current pulses, operating frequencies, and temperature effects with respect to the various logic styles studied.