The digital outputs are open collector transistor outputs. It indeed is some leakage you measured from the outputs.
You have to put pull-up resistors (e.g. 4k7) between the outputs and the +5V of the external voltage source.
The digital outputs are open collector transistor outputs. It indeed is some leakage you measured from the outputs.
You have to put pull-up resistors (e.g. 4k7) between the outputs and the +5V of the external voltage source.