ADM1068: internal Reference maximum current

Document created by analog-archivist Employee on Feb 23, 2016
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From the datasheet it is not quite clear how the Refout  pin can be used
Customer wants to supply a resistor devider Network with the Reference.
How much current he internal reference could drive to source at resistor
network?
 



 

 

 

 

 

 

The REFOUT can provide up 100uA of current, with load regulation of 0.25mV.
Anything more than 100uA is not recommended.
Also I must note that the VREF is critical for the part to start sequencing and
function properly, it shouldn’t be loaded beyond 100uA.
I’d suggest customer to use another voltage reference source if it’s too close
to the limit.

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