Performance of 2^nd generation CALICE/EUDET ASICs

The paper reviews the performance of the three ASICs: HARDROC2, SPIROC2 and SKIROC2 developed to readout the ILC calorimeter prototypes. The chips integrate 36 to 64 channels of front-end, digitization and backend electronics in SiGe 0.35 μm technology. This second version was found mature enough to be produced in several hundreds to equip large scale technological prototypes and establish the feasibility of these highly granular "imaging" calorimeters as required for particle flow algorithms at the ILC. The low noise and low power sequential readout as well as power-pulsing operation at detector level and in magnetic field are proven.