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ADS1274: IN+接单端信号输入,信号是以2.5v为直流基准,交流摆动范围为0-5v,请问IN-端可以接2.5v来实现±VREF采集范围吗?还是应该接GND实现0-2.5v范围

Part Number: ADS1274

hi,我现在正在使用ADS1274,这是一款差分输入ADC,IN+接单端信号输入,信号是以2.5v为直流基准,交流摆动范围为0-5v,请问IN-端可以接2.5v来实现±VREF采集范围吗?还是应该接GND实现0-2.5v范围