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Frequency Characteristics of PSRR in the MAX40109

Thread Summary

The user inquired about the frequency characteristics of the PSRR for the MAX40109, as the datasheet only mentions a typical PSRR of 105dB without specifying the frequency. The final answer directed the user to visit the technical support pages on the Analog Devices website for further assistance. The user clarified that they are a distributor FAE in Japan and requested an official response from the product division.
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Category: Datasheet/Specs
Product Number: MAX40109

To select an appropriate power supply for the MAX40109, please provide the frequency characteristics of its PSRR.


Although the datasheet mentions a typical PSRR of 105dB, it does not specify the corresponding frequency.
This information is necessary to evaluate the ripple frequency and tolerance of the power supply used with the MAX40109, as well as to determine the required specifications for VDDHV when using a switching power supply.

Best Regards,