基于Cadence的CMOS反相器的特性分析与仿真

Characteristic Analysis and Simulation of CMOS Reverter Based on Cadence

CMOS电路中同时采用NMOS管和PMOS管,电路结构简单且规则,静态功耗非常小,在集成电路中用的较多。CMOS反相器是静态CMOS逻辑电路的基本单元之一,为了分析其直流特性和瞬态特性,用Cadence软件设计了一种CMOS反相器。由CMOS反相器的上升时间和下降时间表达式得到瞬态特性的影响因素,通过软件仿真加以验证。

CMOS circuits are composed of NMOS tube and PMOS tube.The circuit structure is simple and regular,the static power consumption is very small,and more is used in integrated circuits.CMOS inverter is one of the basic units of static CMOS logic circuit.To analyze the DC and transient characteristics of the CMOS inverter,a CMOS inverter is designed by Cadence software.According to the expression of the rise time and fall time of the CMOS inverter,the influence factors of the transient characteristics are obtained and verified by software simulation.