LTC2662 16-bit. Maximum Daisy-Chained Devices

I see that the LTC2662 can be daisy-chained by connecting the SDO pin to the next device's SDI pin. However, I don't see any mention of the maximum number of daisy-chained devices in the datasheet.

I require 40 LTC2662 devices. Is it possible (advisable) to connect this many in daisy-chain formation?  If no, what is the recommended method?