This is a pretty ambiguous request.
First, do you mean single turn absolute or multiturn absolute? These are different beasts.
What will you be connecting the encoder to? Connecting to Drive
What types of signals does it accept?SSI
SSI is mentioned a lot in this thread so far. Also Bus networks are possibilities as well as BiSS and EnDAt. Here's an article comparing some of these:
https://www.motioncontroltips.com/a...differences-between-ssi-biss-hiperface-endat/
Do you need to reach a certain resolution counts / revolution? more the 1024 is fine
What is the environment like where the encoder will be installed? wet and dust environment
What is the form factor required for the encoder; shaft output? hollow shaft, cable out the back, cable out the side, etc...