ADS8568: GND PIN connection

user1347906

Prodigy 60 points

Part Number: ADS8568

Are the 51,5,44,15,58,62 pin AGND and 24 pin DGND of ADS8568 connected inside the IC?

10 months ago

0 Ryan Andrews 10 months ago

TI__Guru 59256 points

Hello,

Thank you for your post.

All of the pins listed above must be connected to GND on the PCB. It's possible that one or more may not have an internal connection to the IC, but most will be connected to various analog and digital circuits. Though they are listed as "AGND" and "DGND," it is common best-practice to short them together using a single, solid ground plane.

Regards,

Ryan

0 user1347906 10 months ago in reply to Ryan Andrews

Prodigy 60 points

Not connected inside the IC?

0 Ryan Andrews 10 months ago in reply to user1347906

TI__Guru 59256 points

All ground pins are internally connected to the AGND and DGND nodes within the IC. However, it is imperative that you connect all AGND and DGND pins to the ground plane on the PCB. Performance will not be guaranteed if any of the above pins are left floating.

Regards,

Ryan

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ADS8568: GND PIN connection