TI (Texas Instruments) have a power module and I think the number is PT5022. This will take a +5V input and provide a -5V output. If you make a standard power supply to provide +5V and use one of these modules you should be right.Originally posted by childs72@Mar 31 2006, 03:17 PM
is there any circuit or component that may regulate 9v input to both +5v and -5v output at the same time? i need it to drive my op amp. thx.
Not if you request samples from TI.Originally posted by childs72@Apr 1 2006, 05:09 AM
thx for d PT5022 suggested, however it is still a bit expensive for my project...
by the way my project cannot use single supply op-amp, it is a precision current sink and a precision current source.
Another option could be to use a MAX232 RS232 convertor chip. These generate their own -5V which you could probably use.Originally posted by mozikluv@Apr 1 2006, 11:18 PM
maybe you might want to consider using a 555 timer with a 5v zener at its output to come up with a -5vdc.
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