I have a device that outputs 8 channels each of which activates an output signal level of 5V to turn other devices on. I have a second device that has eight channels of input that I would like to control with the first device, again using 5V logic levels.
The problem I have is the first device has all 8 channels with a common rail for the +ve side of its outputs and individually switched –ve output lines. The second device has a common ground (-ve) rail and individually controllable inputs expecting a +ve signal level.
I suspect this can be handled with op amps that would invert the signal level but I have not had any success so far due to my negligible knowledge with op amps. I would be very grateful if someone could steer me in the right direction here.
The problem I have is the first device has all 8 channels with a common rail for the +ve side of its outputs and individually switched –ve output lines. The second device has a common ground (-ve) rail and individually controllable inputs expecting a +ve signal level.
I suspect this can be handled with op amps that would invert the signal level but I have not had any success so far due to my negligible knowledge with op amps. I would be very grateful if someone could steer me in the right direction here.