数字电位器自动测试实现

Automatic Testing of Digital Potentiometer

数字电位器以其调节方便、使用寿命长、受物理环境影响小、性能稳定等特点，已被广大电子工程技术人员所熟悉，尤其是在音频产品、控制领域等的应用越来越受到人们的重视。以X95840为例介绍数字电位器的特性及工作原理，并将DAC测试原理和方法运用到电参数测试之中，提出数字电位器在集成电路自动测试系统ATE上的实现方案，实现自动测试。

Because of digital potentiometer＇s convenient adjustment, long service life, small affected by the physical environment and stable performance, digital potentiometer is widely used in audio products and control applications and etc. The paper taks X95840 as an example to introduce the characteristics and working principle of digital potentiometer, and skillfully to apply the test principle and method of DAC in electric parameter test, gives the automatic testing plan of digital potentiometer on the ATE.