D. Mazur, V. Herrero Bosch, R. Aliaga, J. M. Monzo Ferrer, R. Gadea Girones, R. J. Colom Palero
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Multichannel DAQ IC with zero deadtime and extended input range for current pulse sensors
This work presents a multichannel IC architecture which is able to process and digitize simultaneous current pulses in every input channel with no deadtime. The analog to digital conversion is performed in two steps: 6 MSBs are quantized by the Charge Pulse System (CPS) and 8 LSBs are obtained from a later ADC for a total of 14 ENOB at the output. An IC designed for sensors with fast pulse current responses is currently under development. The CPS extended input range can take advantage of high gain sensors thus improving overall SNR of the detector. Energy resolution dependent applications such as PET might benefit from this novel DAQ architecture.
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