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LMC6462: Alternate needed

Marco Rojas
Intellectual 2190 points
Part Number: LMC6462
Other Parts Discussed in Thread: TLC2552

Tool/software:

Hi team,

I have a customer with the below inquiry. Let me know your thoughts and thanks in advance!

"We are really struggling with a TI part obsolescence and am hoping you can help out.

We have been using LMC6462 parts for many years in an active filter in our flagship product. Unfortunatly, they have been recently discontinued in DIP packages which we require in our application. I have so far tried LMC6062IN/NOPB, LT1366CN8#PBF, and LMC6482AIN/NOPB but none work as well as the LMC6462 in our application. The combination of low power, low offset voltage, and rail to rail outputs seems hard to match.

Do you have any other suggestions for parts we can try. Again, the part MUST be in a DIP or other through-hole package."

Marco

  • 0
    TI__Mastermind 22527 points

    Marco,

    The best way find this device is using parametric search.  Unfortunately, sometimes the parametric search lists "PDIP" in the search but when you check availability, you find that the device is obsolete.  Below is the parametric search showing a wide number of devices that had PDIP options.  Some of those options are still in production.  One potential option is TLC2552.  This device seems like it may work for your requirements, but the offset may be too high.  I can dig deeper into the parametric search, but I need to know some additional details.  

    DIP op amp search 

    Here is what I need to know:

    • Power supply voltage range
    • Maximum Offset voltage 
    • Maximum Iq
    • Does offset drift or bias current matter?
    • Does the input need to be rail to rail?
    • Rail-to-rail outputs are required?

    I don't know what the volume for the customer's product is.  If it is low volume perhaps you could use a DIP adapter approach.

    Best regards, Art