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ADS8484: input filter design

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Replies: 4

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Part Number: ADS8484

Hello team,

 

My customer is designing an input filter for ADS8484. I would like to propose proper filter value based on TIDUBW7B. however ADS8484 datasheet doesn’t provide Rswitch information. Would you please let me know Rswitch value?

 

Best regards,

Taketo Sato

Taketo Sato

  • Hello Sato-san,

    I am working to find the Rswitch value and will get back to you as soon as I have an answer.
  • In reply to Evan Sawyer:

    Hi Sato-san,

    The ADS8484 Rswitch value is approximately 80 ohms. I recommend selecting an Rflt value between 4 ohms (based on the Rswitch value and equation 4 from the design) and 5 ohms (from the ADS8484 datasheet).
  • In reply to Evan Sawyer:

    Hello Evan-san,

    thank you for the information.
    How about Rswitch of ADS8482? Can I think it same as ADS8484, which is about 80ohms?

    Best regards,
    Taketo Sato

    Taketo Sato

  • In reply to Taketo Sato:

    Sato-san,

    Yes, the Rswitch value for the ADS8482 will be similar (~80 ohms).

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