ADUM141E1 quiescent current

Hi kaq, 

The ADuM141E is an On-Off Keying architecture data isolator. Each channel has a transmitter that is active when the input sees one state, and idle when it sees the opposite input state. The 'E0', 'D0' isolators have the transmitter active when high, idle when low. The "E1', D1' have the opposite behavior, they have the transmitters active when low and idle when high.

The specification you are looking at is when all inputs are simultaneously seeing the same input state. So the first 2 lines are the VDD1 and VDD2 supply current needs when the isolator is seeing it's default state at the input. The second 2 lines are the VDD1 and VDD2 needs when the isolator has all transmitters active. 

Since you have mixed supplies, use the 5V tables for VDD1 and the 3.3V tables for VDD2 supply requirements. 

FYI, the latest generation of OOK isolators have reduced supply current requirements. The ADuM341E may be of interest.    

Regards,

Jason

Hi kaq, 

The ADuM141E is an On-Off Keying architecture data isolator. Each channel has a transmitter that is active when the input sees one state, and idle when it sees the opposite input state. The 'E0', 'D0' isolators have the transmitter active when high, idle when low. The "E1', D1' have the opposite behavior, they have the transmitters active when low and idle when high.

The specification you are looking at is when all inputs are simultaneously seeing the same input state. So the first 2 lines are the VDD1 and VDD2 supply current needs when the isolator is seeing it's default state at the input. The second 2 lines are the VDD1 and VDD2 needs when the isolator has all transmitters active. 

Since you have mixed supplies, use the 5V tables for VDD1 and the 3.3V tables for VDD2 supply requirements. 

FYI, the latest generation of OOK isolators have reduced supply current requirements. The ADuM341E may be of interest.    

Regards,

Jason