Radiation tolerant ASIC for controlling switched-capacitor arrays

We describe a radiation-tolerant controller used to control switched-capacitor arrays. The controller has been developed for the liquid argon calorimeter of the ATLAS detector. Radiation tolerance has been achieved by applying layout, circuit, and system mitigation techniques to a commercial 0.25 [micro]m complementary metal-oxide-semiconductor technology. Index Terms--Complementary metal-oxide-semiconductor (CMOS), deep submicrometer, front-end electronics, radiation, switched-capacitor array (SCA).