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TI Home » TI E2E Community » Support Forums » Amplifiers » Precision Amplifiers » Precision Amplifiers Forum » LM709
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LM709

LM709

This question is not answered
Umesh Gite
Posted by Umesh Gite
on Jul 25 2012 08:47 AM
Prodigy20 points

Please can anyone tell me equivalent for LM709?

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  • Bruce Trump
    Posted by Bruce Trump
    on Jul 25 2012 09:04 AM
    Mastermind20900 points

    Umesh,

    The LM709 is a very old op amp and there are many possible choices with improved performance and more modern packages. One possible replacement is the OPA277. Are you designing a new circuit or possibly  repairing old equipment? Do you have special performance requirements or need a specific package type?

    Regards, Bruce.

    LM709 replacement
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  • Umesh Gite
    Posted by Umesh Gite
    on Jul 25 2012 22:58 PM
    Prodigy20 points

    Bruce,

    There is a circuit in which LM709H & LM709AH is used. I replaced LM709H with LM118 & it is working ok. But when I replace LM709AH with LM118 It is not giving exact same output as of LM709AH.

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  • Bruce Trump
    Posted by Bruce Trump
    on Jul 26 2012 06:57 AM
    Mastermind20900 points

    Umesh,

    The LM118 is a much wider bandwidth, faster amplifier than the LM709. There are many ways that this or other possible differences could affect a circuit. If you can provide a circuit diagram and describe the performance differences we may be able to help.

    Regards, Bruce.

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