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HDC1080温湿度传感器中间的热焊盘该怎么接?

Other Parts Discussed in Thread: HDC1080

HDC1080的datasheet中,有这样的描述:

DAP DAP - Die Attach Pad. Should be left floating. (On bottom of the device, not shown in the figure)

The DAP may be soldered to a floating pad on the board, but the board pad should NOT be connected to GND.

两个都说不能接地,但是可以接到一个悬浮的焊盘上。

但是在Layout Example图片中,中间的焊盘上还打了过孔,看意思是想接地。

请问这个焊盘到底要不要接地,如果不接地该怎样处理?芯片正下方要不要放一个热焊盘?如果不放可以吗?