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Altera_Forum
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9 years ago

Absolute maximum I/O/Analog pin input current

Hi, For the MAX10 family, what's the absolute maximum input current? Altera gives only the absolute maximum voltage (=4.12V). In my application I'm sampling with the MAX10 ADC an analog si...
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Altera_Forum
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9 years ago

Hi,

I assume you're looking for "DC output current per pin", which is +/-25mA. I guess you were looking for a "DC input current per pin" or so; I doubt you'll find that, as I think that the +/-25mA limit is the maximum the input protection diodes can sustain, i.e. you're in a region where the pin isn't acting as a normal input any more.

Since the maximum input voltage is 5.88V below of what your application might apply, I'd suggest to use an input buffer, i.e. some simple OP-Amp. Depending on your application, a simple RIRO-OpAmp, using the same rail as your I/O bank, could already do the trick.

Best regards,

GooGooCluster