Hi,
Do you have the following data of AM26C31I?
1. High-level output voltage(VOH) vs Driver Output Current(Io) characteristics at TA=-10℃,+25℃ and +85℃
2. Low-level output voltage(VOL) vs Driver Output Current(Io) characteristics at TA=-10℃,+25℃ and +85℃
If you have those data at other TA condition, that should be OK.
Regards,