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AD7173-8 Decoupling off +/-2V5 supplies

natural_inquisitive
  •  Analog Employees 
on Jan 20, 2021

We have AD7173-8 running off +/-2V5 rails but everything decoupled to GND.

Is it best to decouple everything to AVSS (-2.5V) as in effect that is the GND for the device??