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ADS1278是否需要提供负电压？

linlin sun
Prodigy 170 points
Other Parts Discussed in Thread: THS4521, ADS1278

ADS1278输入端采用运放THS4521，如果THS4521采用双电源供电并且为单端输入双端输出，输入交流信号，那是否也需要提供一个负电压给ADS1278呢？还是说ADS1278本身不需要提供负电压就可以？？