Speaker
Mr
Pierre BARRILLON
(Laboratoire de l'Accélérateur Linéaire)
Description
MAROC is the readout chip designed for the ATLAS luminometer made of Roman
pots. This ASIC has been realised in SiGe 0.35µm technology and is an
evolution of the OPERA_ROC ASIC developed and installed on the OPERA
experiment to auto-trigger and readout 64 channels Hamamatsu multi anode
PMTs.
Its main features are a 100% trigger rate for signal greater than 1/3
photoelectron, a charge measurement up to 30 photoelectrons with a linearity
of 2% or better and a crosstalk less than 1%. A 12-bit Wilkinson ADC has been
embedded to digitalise charge measurement.
In order to check the functionalities of MAROC, laboratory tests have been
performed and have showed a good global behaviour of the chip, which allows
using it for beam tests of a complete Roman Pot at CERN during autumn 2007.
Author
Ms
Sylvie BLIN
(Laboratoire de l'Accélérateur Linéaire)
Co-authors
Mr
Christophe DE LA TAILLE
(Laboratoire de l'Accélérateur Linéaire)
Ms
Gisèle MARTIN-CHASSARD
(Laboratoire de l'Accélérateur Linéaire)
Ms
Nathalie SEGUIN-MOREAU
(Laboratoire de l'Accélérateur Linéaire)
Mr
Patrick PUZO
(Laboratoire de l'Accélérateur Linéaire)
Mr
Pierre BARRILLON
(Laboratoire de l'Accélérateur Linéaire)
