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[求问]使用ADS1115模数转换器时,它的PGA的增益是如何设置的

Other Parts Discussed in Thread: ADS1115

[求问]使用ADS1115模数转换器时,它的PGA的增益是如何设置的,按照数据手册,设置FSR=4.096V或者6.144V,测量3V电压,都是3V左右,这是什么问题。