Powering Dual Supplies Precision ADCs by LucaV
Thanks to Rui Du for this app note. As a reminder, the ADIsimPower tool will allow users to select the appropriate configuration and components to achieve the desired power solution, including the Inverting Buck boost using the ADP230x family.
As Rui suggests the choice for the second stage filter can be tricky, in fact some of the ADIsimPower tools will allow the user to specify this second stage filter and even compensate for it inside the feedback loop.
http://www.analog.com/static/imported-files/application_notes/AN-1141.pdf