伟大领袖毛主席教导我们:“不论做什么事,不懂得那件事的情形,它的性质,它和它以外的事情的关联,就不知道那件事的规律,就不知道如何去做,就不能做好那件事”、因此,在介绍发展水平以前,想首先简略地讲一下线性电路的范畴和概念。早期的概念是把数字电路以外的集成电路都称为线性集成电路,这只能说是一种广义的命名,不够严格。在一九六七年,国际电子技术委员会(IEC)正式提出了模拟电路的概念,即把数字电路以外的电路统称为模拟电路。模拟电路中分为线性电路和非线性 The great leader Chairman Mao teaches us: “No matter what we do or do not know about the situation, its nature, its association with other things, we do not know the law of that matter and we do not know how to do it. We can not do that. ”Therefore, before introducing the level of development, we want to give a brief talk about the categories and concepts of linear circuits. The early concept was to refer to integrated circuits other than digital circuits as linear integrated circuits, which can only be said to be a generalized naming, not strict enough. In 1967, the International Electrotechnical Commission (IEC) formally proposed the concept of analog circuits, that is, circuits other than digital circuits are collectively referred to as analog circuits. Analog circuits are divided into linear circuits and nonlinear