Design and Performance Analysis of Digital Circuits using Carbon Nanotube Transistors

Due to the scaling of devices in nanometer regime speed and power related issues rises in digital circuits. Carbon nanotube field effect transistor (CNTFET) has been used in the present work as a low power circuit element. The major advantage of CNTFET is low power and energy consumption as compared to the conventional CMOS. This paper proposes the basic implementation of CNTFET inverter, MUX and DEMUX circuits. A comparative analysis with conventional CMOS technology using HSPICE tool in 32nm technology with 1.42nm CNT diameter is performed. The simulation results show nearly 94%, 97% and 98% reduction in energy for CNTFET based Inverter circuit, 8:1 MUX and 1:8 DEMUX respectively as compared to CMOS technology.