Fast on-detector integrated signal processing status and perspectives

The large and increasing channel count of modern detectors requires the use of microelectronics. The data rate and signal integrity requirements drive complex electronics to be mounted close to or directly on the detectors, possibly even integrating the complete first-level trigger stage. The latest silicon road maps indicate that the integration density of microelectronics will continue to increase during the next decade. However, there are several constraints to be taken into account that cause ramifications with respect to on- detector electronics. For instance, the core voltage will be reduced to below 500 mV, the clock rates will exceed GHz, and the power density will increase further. This article outlines two examples of trigger and readout systems, the ALICE TPC and TRD, which are completely integrated in microchips. The article expands on the expected impact future silicon processes may have on the on-detector integrated signal processing. (9 refs).