[IBIS-Users] Mixed-Signal Analog IO ?

From: Lars Snith <lsnith_at_.....>
Date: Mon Aug 15 2005 - 23:22:15 PDT
Hello,

I hope I am adressing the right forum with this. If not, please excuse 
my intrusion.

I have been making a number of IBIS models for microcontrollers of 
medium complexity, successfully as it looks.
As I will soon take on more complex products, with purely analog parts, 
I have been considering the "correct" way of modeling a truly analog IO 
(if at all).
Clearly, to include the power clamps I should treat it as an input. On 
the other hand this might not be the correct procedure, maybe it would 
be better to treat it as a power/ground pin? It would certainly mean 
less work. A third option is to ignore it altogether (NA).

Any comment/feedback on this issue would be most welcome.


Best regards,  Lars Snith
-- 
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| Lars Snith                            |
| Senior Design Engineer                |
| AVR Products                          |
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Received on Mon Aug 15 23:24:26 2005

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