1 ATLAS Pixel Opto - Electronics
نویسندگان
چکیده
We have developed two radiation-hard ASICs for optical data transmission in the ATLAS pixel detector at the LHC at CERN: a driver chip for a Vertical Cavity Surface Emitting Laser (VCSEL) diode for 80 Mbit/s data transmission from the detector, and a Bi-Phase Mark decoder chip to recover the control data and 40 MHz clock received optically by a PIN diode. We have successfully implemented both ASICs in 0.25 μm CMOS technology using enclosed layout transistors and guard rings for increased radiation hardness. We present results of the performance of these chips, including irradiation with 24 GeV protons up to 61 Mrad (2.3 x 10 p/cm).
منابع مشابه
The Off-Detector Opto-electronics for the Optical Links of the ATLAS SemiConductor Tracker and Pixel Detector
The off-detector part of the optical links for the ATLAS SCT and Pixel detectors is described. The VCSELs and p-i-n diodes used and the associated ASICs are described. A novel array packaging technique is explained and an analysis of the performance of the arrays and the overall system performance is given. The proposed procedure for the set-up of the optical links in ATLAS is described. PACS: ...
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