Projeto de circuitos integrados analógicos com CNTFETS usando associações trapezoidais de transistores

Abstract

This work presents the FATAT tool, which aims to assist the design of analog integrated circuits with trapezoidal association of transistors (TATs) composed by carbon nanotubes. Its main feature is the transformation of a single CMOS planar transistor in a current equivalente CNTFET trapezoidal association of transistors. The implementation circuits with TATs has advantages in terms of layout regularity. The trapezoidal association shows good results in terms of output conductance, which can be exploited to increase the voltage gain of operational amplifiers. Two designs are presented for validating the proposed methodology: a differential amplifier and a Miller OTA amplifier. With this, it is possible to show the feasibility of analog building blocks composed by TATs in sub-micrometer technologies.