Abstract For the CMS High Granularity Calorimeter (CE), final version of 72-channel front-end ASIC (HGCROC3) was submitted in December 2020. HGCROC3 includes low-noise/high-gain preamplifiers/shapers and a 10-bit 40 MHz successive approximation ADC (SAR-ADC) that provide charge measurement over linear range preamplifier. In saturation range, discriminator time-to-digital converter (TDC) informa...
