Modern parts

Discussion in 'General Electronics Chat' started by Jaguarjoe, Jan 13, 2011.

  1. Jaguarjoe

    Thread Starter Active Member

    Apr 7, 2010
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    Is there anything newer/nicer than the x7660 negative voltage generator chip?

    What's the consensus on a cheap general purpose j-fet rail to rail op amp? Kinda like "today's 741".
     
  2. marshallf3

    Well-Known Member

    Jul 26, 2010
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  3. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    Do you need just a converter or a converter regulator? What negative supply current do you need? John
     
  4. tom66

    Senior Member

    May 9, 2009
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    TC762 has a zener regulator.
     
  5. Jaguarjoe

    Thread Starter Active Member

    Apr 7, 2010
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    It won't be more than a few 10's of milliamps. This will be the -5v rail for a few op-amps so being regulated would score extra points.
     
  6. Jaguarjoe

    Thread Starter Active Member

    Apr 7, 2010
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    Not having much luck finding this. Who makes it?
     
  7. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
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    The switched capacitor ones are all about the same in terms of parts count. The Maxim link is a good place to look. The MAX768, which I was thinking of for regulated both + and - won't handle your current needs.

    John
     
  8. tom66

    Senior Member

    May 9, 2009
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    Sorry, my error, it should have been TC7662. Microchip make these, along with a few other manufacturers.
     
  9. k7elp60

    Distinguished Member

    Nov 4, 2008
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    How about the Texas Instruments LT1054CP, used it may times.
     
  10. Jaguarjoe

    Thread Starter Active Member

    Apr 7, 2010
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    Thank you guys!
     
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