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# DAC53608: Pull-up Current

Part Number: DAC53608

Hi Team, I would like to confirm if there is any information about the minimum permissible pull up current for the DAC53608 clear pin?

-Mark

• Hi Mark,

A pull up value of 4.7K to 10K should be fine on CLR pin. Please note that max current into any pins allowed is 10mA

Regards,

AK

• Hi AK, Thank you for supporting the post.

May we know the formula or method applied for the Pull up presumption?

Thank you

• Hi,

You can calculate the following formula to calculate pull up value for CLR pin.

R pull-up = (V supply – VH(min)) / Isink

Here Isink can be anywhere between say 500uA to 10mA( max). 10mA is max value since current into any digital pin cannot exceed this value as per datasheet.

for example with Vsupply as 5V and Isink = 1mA, Rpull-up = (5-2.4)/1mA = 2.6K

VIH ( min) is 2.4V from datasheet.

Regards,

AK