AD7608 supply

I am using the AD7608. The datasheet only specifies a total current of 27mA @ 5V for Vanalog & Vdrive.

Like already discussed in a former topic (https://ez.analog.com/data_converters/precision_adcs/f/q-a/25649/ad7608-supply-currents/381411#381411) the currents can be splitted in Ianalog=22mA and IDRIVE=5mA.

Which current can be assumed if VDRIVE is 3.3V?

Alex



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[edited by: Lluis at 4:26 PM (GMT 0) on 3 Aug 2020]
  • 0
    •  Analog Employees 
    on Aug 3, 2020 4:25 PM

    Hi Alex,

    The 5mA is a rough figure that was given on the other post, with some dependencies.

    Provided that 3.3Vdrive would not vary significantly the Idrive current, I would suggest designing based on this figure for either Vdrive voltage level. Would this 5mA be a concern on your application?

    Regards,

    Lluis.