CARLOSv3 is a custom digital integrated circuit that plays a significant role in the data acquisition (DAQ) chain of the silicon drift detector (SDD) of a large ion collider experiment (ALICE). Each CARLOSv3 acts as a JTAG switch for front-end electronics and implements on-line two-dimensional (2D) data compression for two 8-bit DAQ channels handling the data streams delivered by the SDDs. The chip has been implemented using the 0.25 mm CMOS 3-metal CERN-developed digital library. It is composed of nearly 10k gates, has 88 user pads out of a total of 100 pads, has a die size of 44mm2 and is packaged in a CQFP100 ceramic package. In the paper, the chip is presented and described together with the 2Dcompression algorithm, the readout chain for ALICE SDDand the tests carried out.
A.Gabrielli, E.Gandolfi, D.Falchieri, S.Antinori (2004). A Rad-Hard 2D-Compressor ASIC for ALICE SDD Experiment. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 524, 295-305 [10.1016/j.nima.2004.01.046].
A Rad-Hard 2D-Compressor ASIC for ALICE SDD Experiment
GABRIELLI, ALESSANDRO;GANDOLFI, ENZO;FALCHIERI, DAVIDE;ANTINORI, SAMUELE
2004
Abstract
CARLOSv3 is a custom digital integrated circuit that plays a significant role in the data acquisition (DAQ) chain of the silicon drift detector (SDD) of a large ion collider experiment (ALICE). Each CARLOSv3 acts as a JTAG switch for front-end electronics and implements on-line two-dimensional (2D) data compression for two 8-bit DAQ channels handling the data streams delivered by the SDDs. The chip has been implemented using the 0.25 mm CMOS 3-metal CERN-developed digital library. It is composed of nearly 10k gates, has 88 user pads out of a total of 100 pads, has a die size of 44mm2 and is packaged in a CQFP100 ceramic package. In the paper, the chip is presented and described together with the 2Dcompression algorithm, the readout chain for ALICE SDDand the tests carried out.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
