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详细阐述了２４位△－Σ型模拟／数字转换器ＡＤＳ１２１０／１２１１的结构、原理及特点，并以数字电压表为例介绍了它的应用，给出了相关电路图和主程序框图。
The structure, principle and characteristics of ADS1210 / 1211, a 24-bit delta-sigma analog / digital converter, are described in detail. The application of the digital voltmeter is introduced as an example, and the related circuit diagram and main block diagram are given.