The deal is worth up to $2.9 million.
Britt dealt with off-field problems while he was with the Titans and tore his anterior cruciate ligament in 2010.
A Titans first-round draft pick in 2009 out of Rutgers, Britt caught nine touchdowns in 2010.
He lost his starting job and wasn't active for three of the last four games.
Big and fast at 6-foot-3, 223 pounds, Britta caught 42 passes in both 2009 and 2010.
Britt, 25, has caught 157 career passes for 2,450 yards and 19 touchdowns.
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Aaron Wilson covers the Ravens for The Baltimore Sun