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ADS1298R CH1输出原始波形对不对?

Other Parts Discussed in Thread: ADS1298R, ADS1299

  请大牛帮忙看下以下的 ADS1298R CH1的采样原始波形是否正确?这个波形未经数字滤波。下图中最上面那个即是CH1的输出。采样率250samples/s,增益为4,单电源3.3VDC供电。 ECG波形经过滤波后,心率大概75次/s。但是呼吸率波形一直跟TI 评估板文档给出的差别很大,不知道该调整什么?