Acquiring negative voltage without dual rail power supply

Discussion in 'The Projects Forum' started by DrDaniel, Mar 20, 2015.

  1. DrDaniel

    Thread Starter New Member

    Dec 11, 2014
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    0
    Hello everyone,

    We are working with a circuit that implements a dual supply op amp with 5V as the positive rail and -5V as the negative rail. The circuit also needs a common ground. We have a power supply that only ranges from 0 to 12V. What is the best way for us to acquire the -5V that we desire?

    We are using an LM7805 for the 5V, power supply is held at 12V for other uses.

    Thanks,
    Daniel
     
  2. OBW0549

    Well-Known Member

    Mar 2, 2015
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  3. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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  4. cmartinez

    AAC Fanatic!

    Jan 17, 2007
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    Here's another very good chip to accomplish what you want.
     
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