Design of A/D Converter Interface Based on Single Chip Microcontroller

Along with the development of digital technique,the application of analog/digital converter(A/D converter) is increasingly extensive in data acquisition system.Based on the principle of A/D converter,an interface circuit as well as the program flow is put forward,in which a single chip microcontroller AT89C51 is taken as the core,controlling MAX197 to acquire data.This study provides a scheme for data collection system.