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Poster communications

14-Bit and 2GS/s Low Power Digitizing Boards for Physics Experiments

Abstract : The trend in data acquisition systems for modern physics experiments is to digitize analog signals closer and closer to the detector. The digitization systems have followed the progress of commercial analog to digital converters. The state of the art for these devices is currently 200 MSample/s for a 14-bit range. The new boards, described in this paper, have been designed to improve these performances by more than an order of magnitude. This board mainly includes 4 channels sampling analog data up to 2 GSamples/s with an analog bandwidth of 300 MHz, and digitizing it with a 14-bit dynamic range. It is based on the custom-designed MATACQ chip. The latter's innovative design permits reaching these performances with power consumption smaller than 1W, thus allowing a total consumption below 20W for the whole board. The board is triggerable either by internal or external signals and several boards are easily synchronizable. The board integrates USB, GPIB and VME interfaces that permit a readout speed of up to 500 events/s with the whole memory depth of the 4 channels read.
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D. Breton, E. Delagnes. 14-Bit and 2GS/s Low Power Digitizing Boards for Physics Experiments. 2006 IEEE Nuclear Science Symposium, Medical Imaging Conference, and 15th International Room Temperature Semiconductor Detector Workshop, Oct 2006, San Diego, United States. IEEE, 2, pp.990-995, 2006, ⟨10.1109/NSSMIC.2006.356012⟩. ⟨in2p3-00161423⟩

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