Low power Analog Digital Converter for a silicon photomultiplier readout ASIC

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Published 30 April 2015 © 2015 IOP Publishing Ltd and Sissa Medialab srl
, , Topical Workshop on Electronics for Particle Physics Citation K. Briggl et al 2015 JINST 10 C04041 DOI 10.1088/1748-0221/10/04/C04041

1748-0221/10/04/C04041

Abstract

We present an ADC designed in the UMC 0.18um CMOS technology. It will be used in the SiPM analog front-end ``KLauS" developed for the analog hadronic calorimeter at ILD. Key parameter in this application is an extremely low power consumption of the front-end electronics. For quantization of the energy depositions, a 10-bit ADC resolution is required. For calibration purposes, a 12-bit quantization is used. A successive approximation register split capacitor array structure is chosen to minimize the DC power consumption. A peak sensing block is used to minimize the required sampling rate. We present design details and simulation results of the ADC, as well as the peak sensing track & hold circuit.

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10.1088/1748-0221/10/04/C04041