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AD7903 layout clock wire + voltage supply

Question asked by dirkson on Nov 7, 2014
Latest reply on Nov 11, 2014 by dirkson

Hello,

 

I want to use the AD7903 in simultaneous mode.

 

http://www.analog.com/static/imported-files/data_sheets/AD7903.pdf

 

In this mode both AD converters have the same clock wire.

 

1. What is the better way, to connect the clock pins? With the red or the green wire?

I think the way with the green wire better, because there is no crossing. But I'm not sure, if the high frequency signal couple into the chip.

 

 

AD7903_layout_clk.png

2. The 7903 has two seperated AD converters and almost pins have the identifier 1 or 2.

 

If the GND pins are internally connected with each other?

 

 

Best regards,

 

Dirk

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