ATLAS toward the High Luminosity era: challenges on electronic systems

In order to face the challenging experimental conditions at the HL-LHC, the ATLAS detector will be equipped with new sets of both front-end and off-detector electronics and a new trigger and data acquisition system able to cope with the expected event rates and pile-up levels. The large number of detector channels, huge volumes of input and output data, short time available to process and transmit data, harsh radiation environment and the need of low power consumption, all impose great challenges on the design and operation of the electronic systems.