AD566x/4x/2x(R) -  Supply Voltages & On-chip Reference options

The AD5664R has two on-chip reference options available, 1.25V and 2.5V. What is the recommended supply voltage in each case?

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  • Hi Pradaic,

    In AD56x4R datasheet (Rev C.), it is said (External Reference chapter, p20) that "All devices (AD56x4R-3 and the AD56x4R-5) can be operated from a single 2.7 V to 5.5 V supply."

    Above you are stating that "The 1.25V internal reference option will work between a supply of 2.7V to 3.6V".

    Which is right?

    Could AD56x4R-3 uses +5V supply?

    My design uses AD5664R-3 and I connected its supply to +5V.

    Regards,

Reply
  • Hi Pradaic,

    In AD56x4R datasheet (Rev C.), it is said (External Reference chapter, p20) that "All devices (AD56x4R-3 and the AD56x4R-5) can be operated from a single 2.7 V to 5.5 V supply."

    Above you are stating that "The 1.25V internal reference option will work between a supply of 2.7V to 3.6V".

    Which is right?

    Could AD56x4R-3 uses +5V supply?

    My design uses AD5664R-3 and I connected its supply to +5V.

    Regards,

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