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alternative to the HCNR201

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namster:
Hi ,
i wan't to isolate a analog voltage the first circuit that i found is the HCNR201 wich have a very low  Transfer Ratio that is a very critical parameter for a good analog isolation circuit , the problem is that i didn't find this component in my country , so what are the alternative for a good analog isolation ?

MagicSmoker:
IL300 dual photodiode optocoupler.

capt bullshot:
HCPL7800 and variety (there's a whole product family of such couplers available from broadcom).
It's a different thing than the HCNR201, easy to use but noisy.

namster:
Thank you ,i can't found all the component you have cited i will try to purchase them from internet

MagicSmoker:
LOC110 and LOC111 - also dual photodiode optos.

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