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Analog switch selection for differential signals

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afr123

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Hi,

I want to select analog switch for my circuit design with the following requirements:

I want to give differential signals as input to the switch whose common mode voltage is 1.65V and the voltage swing is 0 to 3.3V w.r.t ground. So, if one signal is at 3.3V, the other is at 0V w.r.t ground. Now, I guess that I will be able to use single supply analog switch (5V supply voltage) instead of dual supply +-5V.

Am I correct?

Thank you.
 

Yes, should work with 3.3 or 5V single supply switches.
 

Seems like a simple CMOS switch application. But still
you have choices to make. On resistance? Linearity of
on resistance? Charge injection? Behaviors when the
input goes beyond what you claim are the signal limits?
 

Hi,

To be on the safe side you need to read the datasheet.

Klaus
 

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