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ADS1248

Other Parts Discussed in Thread: ADS1248

你好,我之前做了三块板子,使用ADS1248转换都正常,之后又做了三块在读取ADS1248转换的数据时发现数据差了非常多(软硬件都没变),经测试改变电流源和满量程校准寄存器的值,读取的AD值都按倍数增减,但是改变PGA,AD值并不按倍数增减,请问是什么问题?