Carlton signed a minor-league contract with the Padres on Monday, Jeff Sanders of The San Diego Union-Tribune reports.
Carlton saw limited time in the majors a season ago with Detroit, allowing two runs on four hits while striking out seven across 8.2 innings. He may have a chance to earn a spot near the back end of San Diego's bullpen, as he'll likely compete with Jose Lopez, Nabil Crismatt and other offseason additions.