Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5493392 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2017 | 9 Pages |
Abstract
The readout electronics upgrade for the ATLAS Liquid Argon Calorimeters at the CERN Large Hadron Collider requires a radiation-hard ADC. The design of a radiation-hard dual-channel 12-bit 40Â MS/s pipeline ADC for this use is presented. The design consists of two pipeline A/D channels each with four Multiplying Digital-to-Analog Converters followed by 8-bit Successive-Approximation-Register analog-to-digital converters. The custom design, fabricated in a commercial 130Â nm CMOS process, shows a performance of 67.9Â dB SNDR at 10Â MHz for a single channel at 40Â MS/s, with a latency of 87.5Â ns (to first bit read out), while its total power consumption is 50Â mW/channel. The chip uses two power supply voltages: 1.2 and 2.5Â V. The sensitivity to single event effects during irradiation is measured and determined to meet the system requirements.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
J. Kuppambatti, J. Ban, T. Andeen, R. Brown, R. Carbone, P. Kinget, G. Brooijmans, W. Sippach,