FIT/MTBF figure

Dear Sir/Madam,

I would like to find out the FITs/MTBF figure for the following parts:

Part number OEM Description
ISO1050DW Texas Instruments Isolated Can Bus Transceiver
ISO3080DW Texas Instruments Isolated RS422/RS485 Transceiver
AMC1200TDWVRQ1 Texas Instruments AMC1200-Q1 Fully-Differential Isolated Amplifier