Performance and Quality Control of a Radiation-Hard 12-bit 40 MSPS ADC for the ATLAS Liquid Argon Calorimeter Trigger Readout Electronics Phase-I Upgrade at the LHC

TL;DR

This paper presents a radiation-hard 12-bit 40 MSPS ADC designed for the ATLAS Liquid Argon calorimeter upgrade, demonstrating its performance, radiation tolerance, and quality control procedures for large-scale production.

Contribution

It introduces a custom 130 nm CMOS ADC design that meets system requirements and details a quality control process for mass production of 17,200 units.

Findings

ADC meets analog performance specifications

ADC demonstrates radiation tolerance

Effective quality control procedures implemented

Abstract

A radiation-hard quad-channel 12-bit 40 MSPS pipeline analog-to-digital converter (ADC) has been designed for the trigger readout electronics Phase-I upgrade of the ATLAS Liquid Argon calorimeter, at the CERN Large Hadron Collider. The final version of the custom design, fabricated in a commercial 130 nm CMOS process, is presented and found to meet the system requirements for analog performance and radiation tolerance. The procedure for quality control of 17200 ADCs is described and the results are presented.