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ADG836 supply-analog or digital


I have a basic query regarding single supply analog switch.

Let's say, I am using a analog switch to select gain resistor R1 for non-inverting amplifier 1+(RF/R1) and output of gain amplifier goes to the ADC input. What should be the supply voltage and ground to ADG836-analog or digital?

As this switch don't have separate logic supply.

Please suggest. Thanks in advance.