Development of ATLAS Liquid Argon Calorimeter Front-end Electronics for the HL-LHC

TL;DR

This paper discusses the development of upgraded front-end electronics for the ATLAS Liquid Argon Calorimeter to handle increased luminosity at the HL-LHC, focusing on high-speed, radiation-tolerant components.

Contribution

It presents new designs for radiation-tolerant, low-noise, high-bandwidth front-end electronics suitable for the HL-LHC upgrade.

Findings

Designs for 40-80 MHz readout of 182,500 calorimeter cells

Development of radiation-tolerant, low-noise electronic components

Implementation of 14-bit ADCs and 10-Gb/s laser drivers

Abstract

The high-luminosity phase of the Large Hadron Collider will provide 5-7 times greater luminosities than assumed in the original detector design. An improved trigger system requires an upgrade of the readout electronics of the ATLAS Liquid Argon Calorimeter. Concepts for the future readout of the 182,500 calorimeter cells at 40-80 MHz and 16-bit dynamic range and the developments of radiation-tolerant, low-noise, low-power, and high-bandwidth front-end electronic components, including preamplifiers and shapers, 14-bit ADCs, and 10-Gb/s laser diode array drivers, are presented in this paper.