ADS1296: Replacing ADS1196 with ADS1296

Hi,

We have a working prototype with ADS1196 and are planning to replace it with ADS1296 for testing.

1. Apart from the data output length which will be 24bit, is there any other modifications needed for the code? Hardware configuration is same according to the data sheet(correct me if I am wrong)?
2. To disable the data being output from a specific channel, simply 'power down' that channel is enough of need other configurations?
3. What should be the normal working voltages at below points if we are using internal reference and bipolar configuration?

VREFP=

VREFN=

VCAP1 = 

VCAP2 = 

VCAP3 = 

VCAP4 = 

Thank you,

Ashok