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AD7266 VCC<->Vdrive not more than 0.3V apart

Question asked by retti on Jul 7, 2017
Latest reply on Jul 10, 2017 by jcolao

On Pin 31 "VDRIVE Logic Power Supply Input"
you wrote that AVDD/DVDD should not be more than 0.3V away from Vdrive:

" The voltage supplied at this pin determines at what voltage the interface operates. This pin should be decoupled to DGND. The voltage at this pin may be different than that at AVDD and DVDD but should never exceed either by more than 0.3 V. "

 


How can i do this when i have two separate LDO's for AVDD=DVDD=5V and Vdrive=3.3V ?
Or is it ok to just give not more than 10mA to the Pin Vdrive: like doing a 330Ohm Resistor in Series before that pin ?

 

Thank you very much
Kind Regards

Reto

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