Davis, who got a buyout from the Orlando Magic on Friday, cleared waivers at 2 p.m. West Coast time Sunday.
He will join the Clippers in New Orleans on Monday night for their game against the Pelicans or back in Los Angeles on Wednesday night for their game against the Houston Rockets.
“A guy similar to a guy like that, it just gives us another big,” Clippers head coach Doc Rivers said. “And what I like about a guy like that he can play the ‘five’ [center] or the ‘four’ [power forward]. And if we got a guy like that, he knows my system.”
Davis and Rivers were together for four years with the Boston Celtics, winning an NBA championship in 2008.
Davis will give the Clippers help in the front court as a backup to Blake Griffin and DeAndre Jordan.