optocoupleranalog input
Hi Alberto,
To handle 0-10 volt analog input while providing opto-isolation can not be
done by a simple optocoupler as they
are highly non-lineair. I have however an application note that I kept for
years that uses 3 opamps
and 1 dual optocoupler to create a highly lineair isolation amplifier.
This may cost less than a dedicated isolation amplifier.
See the attachement (TIF file, 118kB).
Greetings peter
To handle 0-10 volt analog input while providing opto-isolation can not be
done by a simple optocoupler as they
are highly non-lineair. I have however an application note that I kept for
years that uses 3 opamps
and 1 dual optocoupler to create a highly lineair isolation amplifier.
This may cost less than a dedicated isolation amplifier.
See the attachement (TIF file, 118kB).
Greetings peter