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ADG715 in audio switching

Question asked by MKEBE on Feb 23, 2017
Latest reply on Mar 9, 2017 by Stephen_Nugent


I have the ADG715BRU analog switch that I want to use as an audio switch. There are 7 inputs channels and one output. I would like to switch the desired input to the one output. I connected 7 outputs of the ADG715 together to make a single output (the 8th input and output pins are unconnected). However, When I tested the design in this manner, there is always channel interference, meaning the channel isolation is poor. Therefore, I would like to know if we can use the ADG715 as a 7 to 1 (or 8 to 1) switch in audio application by connecting the outputs together with good isolation between channels. Otherwise, should I use the ADG728 in this application since it has already 1 output.