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AMC7834
Is there any ripple rejection between the AVss pin and the output of the DAC on this IC, the datasheet shows output noise from the DAC's but I am not seeing any information on ripple rejection.
I am considering a LDO external to the chip if there is nothing to reduce any noise on the input bus passing through the AMC.
Hi Paul,
The AMC7834 has limited PSRR at higher frequencies. While we do not have full characterization data for this time, our bench testing has shown <10dB PSSR at frequences >500kHz. Is there a specific frequency of your SMPS that you are concerned about?
Thanks,
Erin