Maxim have a lot of DC-DC converters with this capability. Try it if possible. I spoke "if possible" because here in Brazil only the MAX232 is reasonable easy to find! Good luck! ----- Original Message ----- From: "Alessandro Queri" To: Sent: Wednesday, December 03, 2003 11:42 AM Subject: [EE:] Dual power supply > Hello folks. I'm looking for a solution to this problem: > > I have 5v supply (single rail, DC) and I want REALLY CLEAN +/-12v @ > 50mA. Consider that conversion should not generate noise in 50 KHz+ Band > AT ALL!!! Any Idea? Any experience in low freq switching big capacitors? > Thanks in advance. > > Ale > > -- > http://www.piclist.com hint: PICList Posts must start with ONE topic: > [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.537 / Virus Database: 332 - Release Date: 06/11/03 -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads