Hi, See to Analog Device. ADM660 http://products.analog.com/products/info.asp?product=ADM660 Work to 1.7 to 7 volt, Regard Denis ----- Original Message ----- From: "John Walshe" To: Sent: Wednesday, February 06, 2002 11:09 AM Subject: [EE]: quick'n'dirty positive to negative convertor Hi guys'n'gals, Has anyone got any neat ideas on how to a +5v to -5V converter for a power supply. Only a few milliamps required on each rail. It's a once off for something I'm trying at home. I did try just splitting the supply but for some reason the positive circuit didn't like it (it wouldn't work!). I must invest in a dual rail PSU sometime! Any thoughts appreciated, John -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads