现代的电子设备随着电子工业的迅猛发展,它的复杂性也越来越高,模拟器件和电路成为其中的不可缺少的重要部分。因此电路系统集成度也不断增大,大量事实表明,模拟电路设备比数字电路更容易发生故障,即模拟电路的故障成本占集成电路总诊断成本的绝大比重,因此对模拟电路故障进行分析与诊断是十分重要的。本文主要对模拟电路故障的成因进行分析和诊断,并介绍了几种诊断方法。 With the rapid development of the electronics industry, modern electronic devices are becoming more sophisticated. Analog devices and circuits have become an indispensable part of them. Therefore, the integration of the circuit system is also increasing. A large number of facts show that the analog circuit equipment is more prone to failure than the digital circuit. That is, the failure cost of the analog circuit accounts for a large proportion of the total diagnosis cost of the integrated circuit. Therefore, Diagnosis is very important. This article mainly analyzes and diagnoses the causes of analog circuit faults and introduces several diagnostic methods.