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

作者：Picatoste E^*; Bigbeder Beau C; Duarte O; Garrido L; Gascon D; Grauges E; Lefrancois J; Machefert F; Mauricio J; Vilasis X

来源：Journal of Instrumentation, 2015, 10(04): C04017.

DOI：10.1088/1748-0221/10/04/C04017

• Calorimeters
• Instrumentation for particle accelerators and storage rings - high energy (linear accelerators, synchrotrons)

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.

• 出版日期2015-4