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LMC6064: LMC6064

Nirav
Prodigy 60 points
Part Number: LMC6064


What is rail to rail supply voltage of LMC6064 Precision CMOS Quad Micropower Operational Amplifier??

I have tried +5V to 4 no. pin and -5V to 11 no. pin  but the IC was burnt.

  • 0
    Guru 140200 points

    Hi,

    +/-5V supply voltage shouldn't be a problem, provided that you don't violate the absolute maximum ratings at any time.

    Can you show a schematic?

    Kai

  • 0 in reply to kai klaas69
    Prodigy 60 points

    Please find the partial schematic. Consider quad op-amp of LMC6064

  • 0 in reply to Nirav
    Guru 140200 points

    Hi,

    what are the "RE", "CE" and "WE" signals? And where is the feedback loop of OPAmp "2"?

    Kai

  • 0 in reply to Nirav
    TI__Genius 10850 points

    Hi,

    Thank you for your post. Can you share a schematic of the LMC6064 including all expected input / outputs and surrounding components? The LMC6064 should be able to operate at +/-5V so there must be something else we need to review.

    -Tamara

  • 0 in reply to Nirav
    TI__Guru* 93105 points

    Hello Nirav,

    • Can you provide more of the circuit schematic so we can see more of the details?
    • How is the +/-5 V being provided to the circuit?
    • Do all of the LMC6064 you have tested burn up?
    • Were industry standard ESD handling procedures used when handling and installing the LMC6064?
    • Have you tried monitoring the LMC6064 supply pins with DSO probes during circuit power up and operation to make sure there isn't an over-voltage being applied?
    • Was the LMC6064 obtained directly from TI, or one of our authorized TI distributors?

    Regards, Thomas

    Precision Amplifiers Applications Engineering