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LMC6442 substitution

Discussion in 'Datasheets, Manuals and Component Identification' started by jcurrie, Mar 4, 2011.

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  1. jcurrie

    jcurrie

    128
    1
    Feb 22, 2011
    i have a circuit that uses a LMC6442 the closest thing i can fine localy is a LM358 from my limited experience it looks like a valid sub , it this a usable sub?
    jim
     
  2. davenn

    davenn Moderator

    13,657
    1,888
    Sep 5, 2009
    The LMC6442 has a substantially lower power requirement, otherwise they are pretty close. So it would really depend on the specific cct you were using it in ... which is ?

    cheers
    Dave
     
  3. jcurrie

    jcurrie

    128
    1
    Feb 22, 2011
    using it on a sawthooh gen to ramp a led up to full brightness then back down to off repeating it at about 2 sec i9nterrval.
    jim
     
  4. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,412
    2,780
    Jan 21, 2010
    That's very low speed, so bandwidth (which is often linked to quiescent current) is unlikely to be an issue.

    Bear in mind I have not looked at the specs to compare these.

    If you're sinking or sourcing significant current from the output, or require a particularly large input or output swing then you should look carefully at the specs, otherwise it may not be critical.
     
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