What is the situation of the switch when for example the IN pin is high in ADG819? I didn't find any information answering this question in the datasheet.
Oh I guess I found something. In the caption of the Figure 1., it is written that "SWITCHES SHOWN FOR A LOGIC 1 INPUT". So is it correct to conclude that the S2 is connected when IN is high?
The Truth Table can be found on Table 4 on page 5 of the ADG819 datasheet.
In addition, yes you are correct. When IN pin is high then S2 is turned On and is connected to D.
Let me know if you have other concerns.
Your welcome, Vala.