A wide dynamic range integrator/discriminator/timer chip set for PMT applications

Author

Newcomer, F.M. ; Van Berg, R.

Author_Institution

Pennsylvania Univ., Philadelphia, PA, USA

Volume

1

fYear

1994

fDate

30 Oct-5 Nov 1994

Firstpage

488

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; application specific integrated circuits; bipolar analogue integrated circuits; cosmic ray apparatus; detector circuits; discriminators; integrated circuit design; integrating circuits; nuclear electronics; photomultipliers; timing circuits; trigger circuits; CMOS time to voltage converter; PMT applications; Sudbury Neutrino Observatory; analog memory chip; early voltage compensation network; fixed width pulse; front end readout; full custom analog bipolar chip set; programmable integration gates; self gating integrator channels; time measurement; trigger processing; wide dynamic range integrator/discriminator/timer chip set; Analog memory; CMOS process; Dynamic range; Instruments; Neutrino sources; Observatories; Pulse measurements; Testing; Timing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record

Conference_Location

Norfolk, VA

Print_ISBN

0-7803-2544-3

Type

conf

DOI

10.1109/NSSMIC.1994.474336

Filename

474336