Hello,
I have a question for ADS8350 VOL specification.
Now I have to add external pull-up on SDO-x line for some reason.
Then I want to understand acceptable pull-up resister value range.
The datasheet defines VOL MAX as 0.2 DVDD where the condition is I_OH=500uA sink.
Assumed DVDD=3.3V, it means that over 6.6Kohm is acceptable for less than 0.2 DVDD VOL.
On the other hand, Input current of Absolute max is defined as +-10mA in the datasheet.
It means 330ohm for DVDD=3.3V.
From these two definition, for DVDD=3.3V case,
1. Over 6.6Kohm : TI guarantees that VOL=0.2DVDD.
2. From 330ohm to 6.6Kohm : The user can use it, the device will not have any reliability issue. But not sure for VOL value, it's user's risk.
3. Less than 330 ohm : Over abs max, it could be broken and have a reliability issue.
Is this my understanding correct?
Regards,
Oba
