Performance Analysis of CNTFET based Digital Circuits
This paper investigates the performance characteristic of CNTFET for different digital circuits to analyze
CNTFET’s potential to replace current transistor technology which is based on CMOS. The circuits that are designed and
simulated for the analysis are Half Adder, Half Subtractor and 4-to-2 bit Simple Encoder. 32nm CNTFET HSPICE model
are being used for simulation of the circuits and whole process is repeated for 32nm CMOS HSPICE model, where CMOS
model is considered as the reference for comparison due to the fact that, it is the on hand technology. The primary parameter
used for comparison is Power-Delay Product. Values obtained from both the model of CMOS and CNTFET are compared to
determine whether CNTFET has the required potential to become the future of transistor industry. This work is mainly a
quantitative analysis where, the obtained result shows how capable CNTFET can be, as it show signs of excellent Power-
Delay Product(PDP) characteristics when weighed against CMOS technology.
Keywords - CNTFET, CMOS, Power Consumption, Time Delay, Power-Delay Product (PDP).