power up

Hi yashred ,

Thank you for your interest in AD9739.

Like with other mixed-signal devices, the same power supply source can be used to power multiple AD9739s on the same board. This can be done by implementing a grounding scheme that properly separates the analog and digital signals and prevent any interaction between the different circuits. One such method often used in high-speed mixed-signal systems is the star ground approach which is described in detail here: Mixed-Signal and DSP Design Techniques, Hardware Design Techniques (see Grounding in Mixed Signal Systems subsection).

You can also refer to this technical article (Successful PCB Grounding with Mixed-Signal Chips - Follow the Path of Least Impedance) that provides a comprehensive discussion on the grounding principles that should be applied for mixed-signal systems, including those that use multiple ADCs/DACs.

Hope this helps.

Regards,
Zaeefa