Part Number: ADS8350 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
↧