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Looking for op amp for voltage reference

Discussion in 'Electronic Design' started by SuperBK, Jun 3, 2007.

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  1. SuperBK

    SuperBK Guest

    Hi. I'm looking for a single package op amp to use as a voltage
    reference. It doesn't have to be super accurate. What is a general
    purpose op amp in an 8 pin DIP?
  2. MooseFET

    MooseFET Guest

    Do you want a voltage reference, an op-amp or both? They are not the
    same thing.

    You can use the voltage regulator your circuit runs on as the
    reference if there is one.
    The LM741 and TL071 or TL072 come to mind.

    The LT1206 will do more of the things you want op-amps to do than many
    others. Beware that it has a funny pin out. It is a high power
    current feedback amplifier that works will up to a few 10s of MHz.
  3. D from BC

    D from BC Guest

    I use DIP's if I think it's going to burn out.
    Op amp + ref example: LT1635 <<DIP 8
    Maybe look at micropower regulators.
    D from BC
  4. Traver

    Traver Guest

    TL431 and TL431L are very common op amp with an internal voltage
    reference. With a few resistors, the output acts as a shunt regulator
    at whatever voltage you set it to.
  5. mpm

    mpm Guest

    They actually make micropower voltage reference sources.
    The most recent ones I saw were from Maxim / Dallas and came in nice
    TO-92 packages.
    Many pre-set voltages to choose from. Let me know if you need a part
    I have not tossed out the literature they sent in the mail last week.

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