Are you using or considered using split supply? (+/-2.5V) With split supplies, this should not be a problem (other than the condition of a)
Per the datasheet, the abs max of the analog inputs are AVSS-0.3V.
- The +/-12V condition of a violates the datasheet.
- If you are using a single supply, c,d,e are potentially OK, but probably not recommended for performance.
- Condition a and b that go below ground are probably less optimal as performance degradation will probably occur.
The recommendation would be to use split supplies; this would allow all conditions except the transient violation of a.