Title :
A wide dynamic range integrator/discriminator/timer chip set for PMT applications
Author :
Newcomer, F.M. ; Van, R. Berg
Author_Institution :
Pennsylvania Univ., Philadelphia, PA, USA
fDate :
8/1/1995 12:00:00 AM
Abstract :
We have designed, fabricated and tested a full custom analog bipolar chip set for front end readout of the 10000 PMT Sudbury Neutrino Observatory. Each chip set instruments four independent PMT´s with two self-gating integrator (HI/LO) channels, a fast discriminator and a timing sequence with three programmable intervals. The chip set provides a companion CMOS time to voltage converter (TVC) and analog memory chip with two programmable integration gates and a fixed width pulse suitable for time measurement and trigger processing. Novel features such as an internal 12 ns analog delay and an early voltage compensation network are discussed along with a short description of the basic circuit functions
Keywords :
Cherenkov counters; bipolar analogue integrated circuits; cosmic ray apparatus; detector circuits; discriminators; integrating circuits; nuclear electronics; photomultipliers; timing circuits; PMT applications; Sudbury Neutrino Observatory; analog delay; analog memory chip; early voltage compensation network; fast discriminator; front end readout; full custom analog bipolar chip set; programmable integration gates; self gating integrator; time measurement; timing sequence; trigger processing; voltage converter; wide dynamic range integrator/discriminator/timer chip set; Analog memory; CMOS process; Dynamic range; Instruments; Neutrino sources; Observatories; Pulse measurements; Testing; Timing; Voltage;
Journal_Title :
Nuclear Science, IEEE Transactions on
