Design of a multichannel low-power integrated circuit for microstrip detectors

This work is focused on the development of a 128-channel low-power ASIC for the readout of silicon microstrip detectors with high energy resolution and counting rate efficiency for X-ray diffractometry. It is expected that this ASIC would find wider application with other detector solutions as well.Each channel is composed by a charge sensitive preamplifier, a shaping amplifier, two twin discriminators for photon counting within an energy window and one for detection of very small signals, e.g. due to inter-strip charge sharing effect. The chip can accommodate energies ranging between 0 to 30 keV.