Re: +5v supply ... but need -5v to drive a DAC

pronforall <pronforall@xxxxxxxxxxxxxxxxxxxx> wrote:
I have a circuit thats driven by a +5v supply ... but I need -5v
(I could also use values between +-18v but since I have 5v ... I want to
see what I can do with that)

Does anyone have an idea how I might rig this up without having to buy
a dc converter or changing my power supply?
Depends on the current you need. If you only need a few mA then you could
use a charge pump. ICL 7660 or similar devices from Maxim. That's in deed
same sort of dc/dc converter but not that kind you probably think of.

--
Dipl.-Inform(FH) Peter Heitzer, peter.heitzer@xxxxxxxxxxxxxxxxxxxx
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