Low-Power CMOS/FinFETs Circuit Using Adiabatic Switching Principle

Power consumption has become a very serious concern with regard to the rapid technology of Internet of Things (IoT) devices. The IoT devices, such as sensor nodes, secure cryptographic devices, and medical implantable devices are general embedded systems that require low power and operate at low-frequency speed. Countless efforts have been done to reduce power consumption in complementary metal oxide semiconductors (CMOS) through supply voltage downscaling, reducing unnecessary clock activity, avoiding long path circuit topology, etc. Another circuit technique for low-power purpose is by employing adiabatic switching principle. The adiabatic switching is commonly used in minimizing energy loss during charging/discharging period at all nodes of the circuit. In this paper, a low-power adiabatic CMOS/FinFETs circuit for low-power secure logic application is presented. The circuit speed, power consumption, and other evaluation metrics indicating the circuit performances will be compared among the proposed circuits and other circuit topologies that are available in the literature.