I'm not sure I understand - most scopes do not have isolation from AC groun= d. Sean On Tue, Mar 9, 2010 at 6:22 PM, M. Adam Davis wrote: > On Tue, Mar 9, 2010 at 5:41 PM, Xiaofan Chen wrote: >> I assume you will not have galvanic isolation. > > I'm pretty sure that the idea is DOA without isolation. =A0Analog > Devices makes chips suited for this purpose: > > http://www.ubasics.com/usb_isolator > > Both chips would fit on a double sided PCB in a 10x10mm area, with a > little more space for the passives, and in 1k quantities are around > $10 - which is reasonable. =A0Could be overmolded in the USB A > connector. > > -Adam > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist