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AD5522 SDO in 3-state/hi-impedance?

Question asked by FreddyS on Sep 7, 2016
Latest reply on Jan 19, 2017 by FreddyS

Hello

Could you clarify more regarding the SDO pin? When is the SDO pin in tristate? What is the SDO pin state when the sync/ signal is in “high” level?

 

From the spec table we can see a tri-state situation:

  

 

Also in figure 6 in data sheet:

Seems like the SDO pin is in tri-state/Hi-Z when SYNC/ is High and active when Sync/ is low...

Please clarify.

 

Thanks

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