FastIC: a fast integrated circuit for the readout of high performance detectors
S. Gómez, J. Alozy, M. Campbell, J. M. Fernandez-tenllado Arribas, R. Manera, J. Mauricio, C. Pujol, David Sánchez, A. Sanmukh, A. Sanuy, R. Ballabriga, D. Gascón
Abstract
Abstract This work presents the 8-channel FastIC ASIC developed in CMOS 65 nm technology suitable for the readout of positive and negative polarity sensors in high energy physics experiments, Cherenkov detectors and time-of-flight systems. The front-end can be configured to perform analog summation of up to 4 single-ended channels before discrimination in view of improving time resolution when segmenting a SiPM. The outputs encode the time-of-arrival information and linear energy measurement which captures the peak amplitude of the input signal in the 5 µA–25 mA input peak current range. Power consumption of the ASIC is 12 mW/ch with default settings. Measurements of single photon time resolution with a red-light laser source and a HPK SiPM S13360-3050CS are ≈140 ps FWHM.