Abstract

A readout electronics for a liquid-argon calorimeter is discussed. It is designed and optimized for operation at cryogenic temperatures and it is integrated in an n-well 2- mu m CMOS technology. The chip contains 16 analog channels with switched-capacitor circuits for charge collection, storage, and amplification, and averaging and correlated double-sampling circuits for noise reduction. Further components include a trigger generator, an analog multiplexer, digital control circuits for analog switching, and 50 ohm cable drivers.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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