Looking at the datasheet for the AD7327, in Table 4 the Absolute Max Rating (AMR) from VDD to VCC is listed as (VCC-0.3V) to 16.5V. By this spec, the power sequence needs to bring up VDD before VCC so that there are no violations during power up. For example if VCC comes up first and VCC=5V while VDD=0V then there is a -5V difference which is less than the AMR spec. Reversing the power up sequence so that VDD=12V and VCC=0V then the +12V difference is within AMR spec.
However, the evaluation board has set the sequencing so that VCC comes up first in the sequence and VDD follows (Figure 27, schematic page 2 in eval board User Guide).
So my question is which is correct and what does ADI actually recommend for sequencing to avoid violating the AMR spec.