Title :
Digital column readout architecture for the ATLAS pixel 0.25 μm front end IC
Author :
Mandelli, E. ; Blanquart, L. ; Denes, P. ; Einsweiler, K. ; Marchesini, R. ; Meddeler, G. ; Ackers, M. ; Fisher, P. ; Comes, G. ; Peric, I.
Author_Institution :
Lawrence Berkeley Nat. Lab., CA, USA
Abstract :
A fast, low noise, limited power, radiation-hard front-end chip was developed for reading out the ATLAS pixel silicon detector. As in the past prototypes, every chip is used to digitize and read out charge and time information from hits on each one of its 2880 inputs. The basic column readout architecture idea was adopted and modified in order to allow a safe transition to quarter micron technology and overcome any possible situation where single point defects and charge deposited by heavy ions in the silicon could have lead to unpredicted forbidden states. Moreover, the smaller feature sizes and the higher speed of these processes allowed us to enhance the design of the basic blocks and adopt a fail safe, design for testability approach.
Keywords :
CMOS integrated circuits; digital readout; digital signal processing chips; nuclear electronics; position sensitive particle detectors; radiation hardening; silicon radiation detectors; 0.25 micron; ATLAS pixel front end IC; Si; Si detector; digital column readout architecture; forbidden states; low noise; quarter micron technology; radiation-hard front-end chip; single point defects; testability approach; Collaboration; Design for testability; Digital integrated circuits; Helium; Integrated circuit noise; Large Hadron Collider; Protons; Prototypes; Radiation detectors; Silicon radiation detectors;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2001 IEEE
Print_ISBN :
0-7803-7324-3
DOI :
10.1109/NSSMIC.2001.1008527
