  MALTA2 is the latest full-scale prototype of the MALTA family of Depleted
Monolithic Active Pixel Sensors (DMAPS) produced in Tower Semiconductor 180 nm
CMOS technology. In order to comply with the requirements of High Energy
Physics (HEP) experiments, various process modifications and front-end changes
have been implemented to achieve low power consumption, reduce Random Telegraph
Signal (RTS) noise, and optimise the charge collection geometry. Compared to
its predecessors, MALTA2 targets the use of a high-resistivity, thick
Czochralski (Cz) substrates in order to demonstrate radiation hardness in terms
of detection efficiency and timing resolution up to 3E15 1 MeV neq/cm2 with
backside metallisation to achieve good propagation of the bias voltage. This
manuscript shows the results that were obtained with non-irradiated and
irradiated MALTA2 samples on Cz substrates from the CERN SPS test beam campaign
from 2021-2023 using the MALTA telescope.
