True - if you can't spare 1.8 sq cm, then you really can't expect to have an isolated USB connection. Any other good isolation is going to take up at least as much space as this chip. On Mon, Mar 22, 2010 at 5:02 PM, Harry H. Arends wrote: > And that solution takes up a lot of extra board space. > >> -----Oorspronkelijk bericht----- >> Van: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] >> Namens M. Adam Davis >> Verzonden: maandag 22 maart 2010 20:56 >> Aan: Microcontroller discussion list - Public. >> Onderwerp: Re: [PIC] Should I opto-isolate a USB interface for my > PIC? >> >> Isolating USB is cheaper and easier than it used to be: >> >> http://www.ubasics.com/usb_isolator >> >> Since you have power on both sides you don't need the >> ADuM5000, just the ADuM4160 - and that should be about $5 >> total for the isolator. >> > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://chiphacker.com/ - EE Q&A site -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist