ADC with independant GND and Vref

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  1. - 20th July 2015, 11:32 #6
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    Acetronics2
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    Default Re: ADC with independant GND and Vref

    Much simpler would be an external V/F converter that can be close to the source ( LM331 as an oldie ! ) http://www12.fairchildsemi.com/ds/KA/KA331.pdf then an opto-coupler :
    you then just have to measure the incoming frequency ...

    Alain
    Last edited by Acetronics2; - 20th July 2015 at 11:34.
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