A front-end ASIC for use with large-pixel array detectors

An Integrated Circuit (IC) readout chip with four channels arranged so as to receive input charge from the corners of the chip was designed for use with 5- to 7-mm pixel detectors. This Application Specific IC (ASIC) can be used for cold neutron imaging, for study of structural order in materials using cold neutron scattering or for particle physics experiments. The ASIC is fabricated in a 0.5-/spl mu/m n-well AMI process. The design of the ASIC and the test measurements made will be reported. Noise measurements will also he reported.