I am using ADM101. It is mentioned in the datasheet that the SD pin disables the chip and the input stays active.
My question is: when SD is in "1" (disable mode) the Tout pin is in tri state? It is not clear in the datasheet output state
I don't think it is possible, I'm pretty sure the Tout pin will be pulled to ground. I haven't been able to find more details on this particular part but I know some of the other ADI parts with a similar SD function don't tri-state the Tout pin. So if you connect the Tout pins in parallel they will all be pulled low.
I can probably get these parts in about a week to check it out for sure in the lab. If you have parts already yourself you may be able to check quicker.