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Low noise 4-channel front end ASIC with on-chip DLL for the upgrade of the LHCb Calorimeter

Abstract : An integrated circuit for the Upgrade of the LHCb Calorimeter front end electronics is presented. It includes four analog channels, a Delay Locked Loop (DLL) for signal phase synchronization for all channels and an SPI communication protocol based interface. The analog circuit is based on two fully differential interleaved channels with a switched integrator to avoid dead time and it incorporates dedicated solutions to achieve low noise, linearity and spill-over specifications. The included DLL is capable of shifting the phase of the LHC clock (25 ns) in steps of 1 ns. The selected technology is AMS SiGe BiCMOS 0.35 um.
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http://hal.in2p3.fr/in2p3-01145519
Contributor : Sabine Starita <>
Submitted on : Friday, April 24, 2015 - 2:27:05 PM
Last modification on : Wednesday, September 16, 2020 - 4:25:54 PM

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IN2P3 | LAL | CNRS

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E. Picatoste, C. Bigbeder-Beau, O. Duarte, L. Garrido, D. Gascon, et al.. Low noise 4-channel front end ASIC with on-chip DLL for the upgrade of the LHCb Calorimeter. TWEPP 2014 - Topical Workshop on Electronics for Particle Physics, Sep 2014, Aix en Provence, France. pp.C04017, ⟨10.1088/1748-0221/10/04/C04017⟩. ⟨in2p3-01145519⟩

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