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AD8000&AD8001 PCB design issues

Hello,

I'm designing AD8000&AD8001 for testing purpose. The AD8000's datasheet says:"Do not use ground and power planes under any of the pins of the AD8000." Is this means that I have avoid copper of the ground (or power) plane adjacent top layer? 

Below is my baord's layers structure:(Do i have to remove some copper of the Agnd1 just under the AD8000&AD8001?)

And here is the AD8001 and AD8000 used in my new test board:

Anybody can show me an example of this?

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  • Hi Jay,

    Thanks for you reply.

    My 50 ohm trace width is not same as the pin width, so i have to remove the GND under pin. I took the removing action as below for my new test board. Which one is better? Though the left is AD8001, and the right one is AD8000.

    I just took over the AGND1, and didn't remove the GND of AGND2 and DGND.

    Best Regard

Reply
  • Hi Jay,

    Thanks for you reply.

    My 50 ohm trace width is not same as the pin width, so i have to remove the GND under pin. I took the removing action as below for my new test board. Which one is better? Though the left is AD8001, and the right one is AD8000.

    I just took over the AGND1, and didn't remove the GND of AGND2 and DGND.

    Best Regard

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