Discriminator with a current-sum multiplicity output for the PHENIX multiplicity vertex detector

R. S. Smith, E. J. Kennedy, R. G. Jackson, M. L. Simpson, C. L. Britton, W. L. Bryan, U. Jagadish, G. R. Young, B. V. Jacak, J. Kapustinsky, A. Oscarson

Research output: Contribution to conferencePaperpeer-review

Abstract

A current output multiplicity discriminator for use in the front-end electronics (FEE) of the Multiplicity Vertex Detector (MVD) for the PHENIX detector at RHIC has been fabricated in the a 1.2-μ CMOS, n-well process. The discriminator is capable of triggering on input signals ranging from 0.25 MIP to 5 MIP. Frequency response of the discriminator is such that the circuit is capable of generating an output for every bunch crossing (105 ns) of the RHIC collider. Channel-to-channel threshold matching was adjustable to ±4 mV. One channel of multiplicity discriminator occupied an area of 85 μ×630 μ and consumed 515 μW from a single 5-V supply. Details of the design and results from prototype device testing are presented.

Original languageEnglish
Pages439-442
Number of pages4
StatePublished - 1996
Externally publishedYes
EventProceedings of the 1996 IEEE Nuclear Science Symposium. Part 1 (of 3) - Anaheim, CA, USA
Duration: Nov 2 1996Nov 9 1996

Conference

ConferenceProceedings of the 1996 IEEE Nuclear Science Symposium. Part 1 (of 3)
CityAnaheim, CA, USA
Period11/2/9611/9/96

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