LF357 dual op amp

Discussion in 'The Projects Forum' started by kahafeez, Jan 15, 2009.

  1. kahafeez

    Thread Starter Active Member

    Dec 2, 2008
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    0
    hi all, i need to know the dual op amp of the part number LF357..... like TL072 is the dual version of TL071..... just like that whats the dual version of LF357....
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
    Hello,

    As far as I know, there are no dual opamp versions of the LM357.

    Greetings,
    Bertus
     
  3. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    The LF357 has been out of production since 2004.
     
  4. kahafeez

    Thread Starter Active Member

    Dec 2, 2008
    150
    0
    ok thanks..... that was y i couldnt find the dual version..... anyways folks..... believe it or not i made the 450KHz sine wave oscillator(wein bridge) with TL072....... and it worked..... when i used LF357 that gave distortion..... may be there was some problem..... i dont know bt as TL072 is working fine for me i dont have any trouble anymore..... i tried making a TL072 450Khz oscillator before on a breadboard bt this time i tried on a PCB that worked.... yuppeeee!!!
     
  5. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    A TL07x runs into trouble when the output is higher than 100kHz.
    An OPA134 single, OPA2134 dual or OPA4143 quad work well up to 250kHz at max output level or up to 1MHz at lower levels.
     
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