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AD7927 Control Register default

wmccabe
on Nov 3, 2015

Hello,

What is the default setting for the control register (described on p. 12 of the data sheet)? Specifically what is the default of the range bit? I don't believe it is defined in the data sheet.

Thank you,

Will

  • 0
    •  Analog Employees 
    on Nov 3, 2015 6:43 PM


    Hi wmccabe,

         As mentioned on the datasheet, the AD7927 upon power up may be in any operating mode and to ensure that the part is placed into a required operating mode, the user must perform a dummy operation. Kindly refer to the figure 24 on p.21 of the AD7927 datasheet. 3 dummy conversion places the AD7927 into the auto shutdown mode and in this dummy operation, DIN is tied high. On the third dummy cycle, the user should write the desired control register configuration of the AD7927 to place the part in auto shutdown mode.

    Regards,

    Jonathan

  • 0
    •  Analog Employees 
    on Aug 2, 2018 3:15 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin