External analog mux

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MattH

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Hello,

Dumb question: Can I connect directly each drain pin of a quad SPDP switch such as the ADG774 to the analog pins of my Teensy3.2 ? I mean do I need any capacitor or pull up/down resistor ?

My goal is to increase the number of analog inputs. Each of the 8 source pins of the switch is to be connected to a variable resistor (in a voltage divider setup).

Second question how long do I need to wait before I can do the analog read once I switched the ADG774 one way or the other ? Can I turn the IN pin Low or High and in the next line of code do my analog reads or do I need a small delay for stabilisation ?

Thanks !

analogmux.jpg
 
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