Design of implantable cardioverter defibrillator using low power subthreshold digital circuit

Due to tremendous Technological advancements researchers and scientists have proposed designs operating under subthreshold and near threshold regions. With recently, growing the need for low power consumption of devices, the low power circuits have become more eye-catching to the design engineers. But the act of subthreshold design has become more profound to the PVT variations due to exponential relationship of current in Subthreshold region depends on supply voltage(Vgs) and threshold voltage(Vth). The motivation for low power electronics has been derived from the subthreshold operation & its driving forces. In this paper the subthreshold design of source coupled logic circuit is described with its functionality under subthreshold region and performance in static and dynamic mode of operation and used as Implantable cardioverter defibrillator under 28nm technology.