I'm trying to determine the input current required to operate the following SN65HVD233 CAN transceiver at 1Mbaud: http://www.ti.com/lit/ds/symlink/sn65hvd233.pdf
The first spec I see listed is receiver output current:
I don't understand why this ranges from -10 to 10mA. The receiver outputs to the CAN controller's Rx pin so why would it be sinking current?
The next spec I see is output current for the driver:
Again, I'm not sure why the driver would be sinking current.
Schematic provided on datasheet of driver and receiver:
Later in the datasheet, the supply current for the driver and receiver is provided:
(both driver and receiver are identical, with 6mA of current draw in dominant and recessive state)
These are specified at "No load" - can I use these figures for power calculations when the device is actually attached to a bus?
Also, do the high level and low level output currents for driver and receiver factor into the current draw of the transceiver?