Maximum ratings doesn't mean "operative ratings".

Place less than -0.3V or more than +6.0V and you will destroy it.
It means just this, it doesn't mean that it actually operates at
-0.3V..


At 12.09 2005.05.15 +0100, you wrote:
>It is better if this device could work from 3V as well, but the
>strange thing is that in the data sheet it actually reads
>
>maximum ratings:
>supply voltage: -0.3v to +6V
>
>This is very strange, as it would suggest that 0V is a permitted
>supply, i.e. it will work with no supply voltage????
>
>here is the datasheet
>
>http://pdfserv.maxim-ic.com/en/ds/MAX220-MAX249.pdf
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