1. theertham

    Thread Starter New Member

    Apr 28, 2012
    26
    0
    hi
    can any one please tell me name of op amps which are having the same pin out as that of 741.i need an opamp having the same pinout as that of ic 741 which can operate at high frequency(100 kHz)
     
  2. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    Almost ALL single opamps have the same pinout. Duals and quads also have the same pinout as each other.

    The 741 opamp is 45 years old and does not go above 9kHz. Most modern opamps go up to 100kHz perfectly like the MC3407x, TL07x and TL08x.

    An OPAx134 audio opamp goes up to 250kHz perfectly and a TLE214x goes up to 400kHz perfectly.
     
    #12 and theertham like this.
  3. MBVet05

    New Member

    Jul 21, 2011
    27
    1
    Try the LMR348DR from Digikey. It operates up to 1Ghz.
     
  4. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,365
    I would avoid using an op-amp that has a much wider bandwidth than needed.
    You are likely to run into problems with oscillations and instability.
     
  5. theertham

    Thread Starter New Member

    Apr 28, 2012
    26
    0
    i have a doubt.whether there will be any change in design of the circuit if i changes the op amp with the same pin out as that of the previous used one
     
  6. MrChips

    Moderator

    Oct 2, 2009
    12,449
    3,365
    When posting a request in a forum try to post a title that gives a clearer idea of the topic.
    A title such as "help" or "pulse" is totally useless.
    Also do not post multiple threads on topics that may be the same or related.
     
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