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ADG804 strange behavior

Question asked by kreker on Apr 18, 2018
Latest reply on Apr 18, 2018 by mayp

Hello.

 

When selecting a channel (S*) and applying a static signal (3V) to it there are some voltage (about 1.2V) on unused inputs of neighboring switches.
Should it be there?
Does this mean that the chip is damaged?
I thought that the channels are independent from each others.
I checked the circuit many times - there are no short circuits. 
Unfortunally, i can't cut the traces (which leading to D pin and to another IC after it), because it will be difficult to restore them.
When the signals are skip multiplexers - everything goes fine.

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