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Original question:
ADS1299: 原理图
您好，
已经收到了您的案例，调查需要些时间，感谢您的耐心等待。
从技术上讲，如果使用SRB1，INxN输入引脚可以保持浮动。目前，已从外部短路了所有INxN引脚，但它们仍处于浮动状态。请参阅数据表的Referential Montage部分。
