I have a question about ADuM1281 supply current.
I was reading ADuM128x datasheet.
Datasheet says that IDDI(Q) = 0.8mA_max and IDDO(Q) = 2.0mA per Channel
This means, if I use ADuM1281 and input nothing,
IDD1 = 0.8mA(B Channel) + 2.0mA(A Channel) = 2.8mA
IDD2 = 0.8mA(A Channel) + 2.0mA(B Channel) = 2.8mA
Is my understanding correct?
Also datasheet says that if we input 1Mbps, IDD1 = 2.6mA_max and IDD2 = 2.9mA_max.
These value are smaller than quiescent current.
Why this happen?