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OPA333: OPA333

user4245179
Prodigy 10 points

Part Number: OPA333

Hi，engineers!

I configure OPA333 voltage follower, providing  reference voltage for two ADCs (AD7768)。But  I found that however the feedback RC or ouput compensation resistor(R259) tuned, the OPA333 is in oscillation，the feedback resistor R260 tuned from 110KOhm to 1MOhm, the amplitude of oscillation can be attenuated, but could not be suppressed completely .I am appreciated for your ideas.

 

  • 0
    TI__Guru* 93105 points

    Hello user4245179,

    Are there any capacitors connected from the output to ground of the OPA333 reference buffer circuit? If so, what are their values and what are their specific manufacturer's component numbers? 

    Regards, Thomas

    Precision Amplifiers Applications Engineering