Here is the setup:
I'm using the Arduino Mega's SPI functionality to send signals to multiple DACs. For digital isolation, I am considering the HCPL-2631 or the ACPL-064L. The problem with these two is that output signal is inverted.
One solution is to feed the optocoupler's output signal through a set of inverters.
Could I accomplish the same by inversing the input polarity of the optocoupler?
Also, are there optocouplers with non-inverting logic that are suitable for digital isolation between an Arduino and a DAC?