Speaker
Dr
Stefan Ritt
(PSI)
Description
Switched Capacitor Arrays (SCA) for fast waveform sampling are on the market since many years, but only recently they got an enormous boost due to fast and cheap CMOS chip technology. Many groups worldwide developed or are developing SCAs reaching up to 20 Giga-Samples per second and 12 bits with a power consumption orders of magnitude lower than traditional Flash ADCs. Several experiment deploy this technology with thousands of channels. Waveform sampling in the GHz range allow them waveform discrimination, effective pile-up rejection, and timing resolution down to a few pico seconds.
This talk gives an overview of the technology, advantages and limitations, and compares SCA chips currently used in particle physics, astro-particle physics and Time-Of-Flight PET in medical applications. Current design projects are reviewed giving an outlook of what one might expect in the near future in this field, including dead-time free SCAs.
Primary author
Dr
Stefan Ritt
(PSI)
