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AD8148 multiplexed to form a video network ?

Question asked by Captcha on Jul 23, 2012
Latest reply on Aug 14, 2012 by jpearson

Hello

 

I need to multiplex five AD8148 video driver in order to make a video network.

i saw in the specs that we can do it by using the OPD (Output Pull Down ) feature in ordrer to present a high

impedance at the output. But the condition is to use serials schottky diodes.

 

Is there any schematic for this particular use, and what about the bias of theses diodes ?

 

In the spec it is mentionned that we can use VOCM but the AD8148 does't have one.

 

 

thanks for your help .

Chapka

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