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ADS131E06: DVDD PSRR vs Frequency

Part Number: ADS131E06

Hi support team.

Is a low noise LDO needed for a DVDD?

My customer would like to know if the noise to DVDD affects the conversion error.

Could you please provide PSRR vs frequency data regarding DVDD?

Best regards,

Higa

  • Hello Higa-san,

    We do not have PSRR vs. frequency data available to share for DVDD. 

    As explained in this post, the PSRR spec applies to both analog and digital supplies. The digital supply is typically less susceptible to noise because the digital decimation filter will help to remove higher frequency noise.

    For reference, we cover some of these topics in the TI training portal: 

    Regards,