AD5684 Power Management

Hello,

 

What is the Vlogic pin for in the AD5684 Digital-to-Analog Converter? The data sheet indicates it as a “Digital Power Supply”. How is this different from Vdd? I currently have Vdd connected to a 5V supply and I'm using a microcontroller powered with 3.3V. Should I connect Vlogic to the 5V or 3.3V rail?

 

Also, since I’m connecting this to a 3.3V microcontroller, the serial data will vary between 0 for low and 3.3V for high. If I use a 2.5V reference, kept GAIN at high, and connected Vdd to 5V, can I still get an output between 0 to 5V?

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    •  Analog Employees 
    on Aug 2, 2018 2:32 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
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  • 0
    •  Analog Employees 
    on Aug 2, 2018 2:32 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
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