使用过采样的方法提高AVR的模数转换器的精度 "过采样和抽取"的方法，以及应用该方法而非外部的模数转换器达到提高精度的目的时所应满足的条件。-This Application Note explains the method called "Oversampling and Decimation" and which conditions need to be fulfilled to make this method work properly to get achieve higher