一、引言数/模和模/数转换器(以下简称D/A和A/D)广泛地应用于现代的测量和控制仪器设备之中。研制、生产和使用D/A和A/D,均要求对其性能进行准确的测量。由于D/A和A/D的性能参数比较复杂,并具有一些通常为人们所不熟悉的特性,制造厂对各自产品的性能参数的定义也不全相同,因此,在开始讨论这些性能参数的测试方法以前,有必要探讨一下它们的含义以及相互之间的内在联系。本文先分析D/A的转换特性(它也是 I. INTRODUCTION D / A and A / D converters (hereinafter referred to as D / A and A / D) are widely used in modern measurement and control equipment. Development, production and use of D / A and A / D, all require accurate performance measurement. Because the performance parameters of D / A and A / D are more complex and have some characteristics that are not generally familiar to people, the manufacturer’s definition of the performance parameters of their respective products is not all the same. Therefore, at the beginning of the test to discuss these performance parameters Before the method, it is necessary to explore their meanings as well as the internal relations between them. This article first analyzes D / A conversion characteristics (it is also