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ADS1248测量四组PT100采集,如何实现采集全部通道

Other Parts Discussed in Thread: ADS1248

您好,请问一下!如果要测量四组差分输入,是不是采取轮询配置采集通道的方式。在ADS1248手册上只是看到了单差分通道采集设置,没有发现全部通道设置的方法。谢谢!

  • 您好,

    是的,ADS1248内部只集成了一个ADC,从数据手册Figure51. Analog Input Multiplexer Circuit可以看出所有的模拟输入通道都通过MUL连接到内部AINP or AINN,因此需要配置MUL选择采集信号通道。