Please can anyone tell me equivalent for LM709?
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?
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.
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.
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