CNTFET Circuit-Based Wide Fan-In Domino Logic for Low Power Applications

Author:

Sharma Vijay Kumar1ORCID

Affiliation:

1. School of Electronics & Communication Engineering, Shri Mata Vaishno Devi University, Katra 182320, India

Abstract

Carbon nanotube field effect transistors (CNTFETs) are the best alternative option for the metal oxide semiconductor field effect transistor (MOSFET) in the ultra-deep submicron (ultra-DSM) regime. CNTFET has numerous benefits such as lower off-state current, high current density, low bias potential and better transport property as compared to MOSFET. A rolled graphene sheet-based cylindrical tube is constructed in the channel region of the CNTFET structure. In this paper, an improved domino logic (IDL) configuration is proposed for domino logic circuits to improve the different performance metrics. An extensive comparative simulation analysis is provided for the different performance metrics for different circuits to verify the novelty of the proposed IDL approach. The IDL approach saves the leakage power dissipation by 95.61% and enhances the speed by 87.10% for the 4-bit full adder circuit as compared to the best reported available domino method. The effects of the number of carbon nanotubes (CNTs), temperature, and power supply voltage variations are estimated for leakage power dissipation for the 16-input OR (OR16) gate. The reliability of different performance metrics for different circuit is calculated in terms of uncertainty by running the Monte Carlo simulations for 500 samples. Stanford University’s 32[Formula: see text]nm CNTFET model is applied for circuit simulations.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

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