Abstract
SAMPIC is a Waveform and Time to Digital Converter (WTDC) multichannel chip. Each of its 16 channels associates a DLL-based TDC providing a raw time with an ultra-fast analog memory allowing fine timing extraction as well as other parameters of the pulse. Each channel also integrates a discriminator that can trigger itself independently or participate to a more complex trigger. After triggering, analog data is digitized by an on-chip ADC and only that corresponding to a region of interest is sent serially to the DAQ. The association of the raw and fine timings permits achieving timing resolutions of a few ps rms. The paper describes the detailed SAMPIC0 architecture and reports its main measured performances.
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