Campbell, who turns 27 in July, led the Falcons in total tackles (129) last season. He also notched two sacks and five passes defensed and set career highs in forced fumbles (three) and interceptions (two) in 2019.
The Falcons selected Campbell in the fourth round of the 2016 NFL Draft out of Minnesota. In four seasons in Atlanta, he has recorded 363 total tackles, 5.5 sacks, 16 passes defensed, three picks and five forced fumbles.
Campbell is expected to slot in next to linebacker Jordan Hicks in the middle of the Cardinals' defense, with All-Pro defender Chandler Jones and Kennard coming off the edge.