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

Volume

42

Issue

4

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

745

Lastpage

749

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;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.467799

Filename

467799