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文中对四种最为常用的模数转换(A/D)技术加以比较,重点介绍了∑-△技术的工作原理。同时介绍了串行输入输出的24位ADC芯片AD7710的基本特点,最后给出它与8051单片机的接口示意图。
The article compares the four most commonly used analog-to-digital conversion (A / D) techniques, focusing on the working principle of Σ- △ technology. At the same time introduced the serial input and output 24-bit ADC chip AD7710 basic characteristics, and finally gives it with the 8051 microcontroller interface diagram.