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OPA2189: chopper frequency, distribution data, temp drift data

Taketo Sato
Genius 10565 points

Part Number: OPA2189

Hello team,

My customer has question for OPA2189. 

Could you let me know chopper frequency of OPA2189?

And, do you have following data?

  • chopper frequency lot to lot variation data
  • chopper frequency temperature dependency data

Best regards,

  • 0
    TI__Guru* 93105 points

    Sato-san,

    TI does not provide to customers:

    • chopper frequency lot to lot variation data
    • chopper frequency temperature dependency data

    TI provides general information about the chopping characteristics of the OPA218x zero-drift op amps. The OPA2189 chopping frequency is designed to be 150 kHz ±10%, but can vary considerably more across production lots and temperature. That usually isn't a concern for the user because the internal sync filter is synchronous with the chopping frequency so its variance isn't an issue.

    Regards, Thomas

    Precision Amplifiers Applications Engineering