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ADS1262外接基准电压方式

Other Parts Discussed in Thread: ADS1262

使用ADS1262,使用外部基准电压作为芯片的基准电压输入。被测量的信号输入范围是-2.5~+2.5V,是不是外部基准电压需要接-2.5V和+2.5V?如果用正基准输入为+2.5V,负基准输入为地,在增益为1的情况系下,测量的输入信号是不是在-1.25v~+1.25V以内?