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A very-front-end ADC for the electromagnetic calorimeter of the International Linear Collider

Abstract : A 10-bits pipeline Analog-to-Digital Converter (ADC) is introduced in this paper and the measurements carried out on prototypes produced in a 0.35 µm CMOS technology are presented. This ADC is a building block of the very-front-end electronics dedicated to the electromagnetic calorimeter of the International Linear Collider (ILC). Based on a 1.5-bit resolution per stage architecture, it reaches the 10-bits precision at a sampling rate of 4 MSamples/s with a consumption of 35 mW. Integral and Differential Non-Linearity obtained are respectively within ±1 LSB and ±0.6 LSB, and the measured noise is 0.47 LSB at 68% C.L. The performance obtained confirms that the pipeline architecture ADC is suitable for the Ecal readout requirements
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http://hal.in2p3.fr/in2p3-00175129
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G. Bohner, R. Bonnefoy, R. Cornat, Pascal Gay, J. Lecoq, et al.. A very-front-end ADC for the electromagnetic calorimeter of the International Linear Collider. IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2008, 55, pp.1587-1592. ⟨10.1109/TNS.2008.920256⟩. ⟨in2p3-00175129⟩

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