集成电路噪声模型算法及其矩阵表达

给出了集成电路噪声模型算法及其矩阵表达．噪声模型算法是利用功率谱密度叠加原理推证得出的,根据噪声叠加原理,多级集成电路的功率谱密度为单级集成电路功率谱密度的叠加之和,而单级集成电路的功率谱密度同样也基于叠加原理求得;并借助电路噪声等效理论,以反相输入运算放大器为例,探讨了运放噪声模型的矩阵算式,其方法和步骤同样适用于同相输入运算放大器;给出的程序设计方法为噪声模型算法的应用提供了思路,使系统参数的计算变得更精确．

Study on noise models algorithms and matrix descriptions for integrated circuits

An efficient noise characteristic analysis to an integrated circuit proves to be foundation of integrated circuit design and fault diagnosis.In this paper,noise models algorithms and matrix descriptions for integrated circuits is presented.The noise models algorithms were derived on the principies of superimposing of power spectral density.According to the principies of superimposing,power spectral density of any multistage integrated circuits may be considered as the superimposing sum of power spectral density of each single stage.Moreover,power spectral density of single integrated circuits may be obtained by the principies of superimposing and the equivalent theory of circuit noise as well.The inverted input operaional amplifiers are taken as an exemplary mode presented in the paper,whereas analysis to other modes of operational amplifier input may be performed with the same ways and pricedures.The program design methodology presented in the paper indicates a scheme for application of the alorithms.The matrix descriptions of the noise model algorithms bring about an easy way to calculate the parameters of systems precisely with algorithms presented in the paper.