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The custom design of a radiation-hardened, 8-channel, 40-MSPS, 15-bit resolution, 14.2-bit dynamic range, 11.4-ENOB ADC data acquisition ASIC fabricated in a commercial 65-nm triple-well CMOS technology is presented. The ADC is developed for and integrates seamlessly into the readout system for the ATLAS liquid argon (LAr) calorimeter in the high-luminosity large hadron collider (HLLHC) upgrade at CERN, which will require a total of 364 936 ADC channels. A three-stage MDAC+SAR pipelined ADC architecture was designed to meet the physics requirements and scientific goals of the ATLAS experiment. The ADC is a fully self-contained data acquisition system that includes foreground calibration, digital data processing, digital control, and supporting circuitry. The measured performance shows the ADC achieves a competitive dynamic range and SNDR, and it meets or exceeds the ATLAS analog requirements. Radiation tolerance and scalability design considerations were implemented at the device-, circuit-, and system-level. Radiation-hardening-by-design techniques used include redundancy for digital circuits, the use of MiM capacitors, and a hybrid RC-DAC for the ADC core. The ADC ASIC was demonstrated to be robust against the effects of the intense radiation expected in the HL-LHC experimental environment.

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Trump Just Made a Major Statement! Bloomberg: U.S. Government Could End Shutdown Within Days; U.S. Stocks Surge

uuxq opxa Nov 11, 2025, 1:59 AM

CICC

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Robots: Shaping the Future of Human Life

เมฆา ม Nov 10, 2025, 11:11 AM

Robots, defined as programmable machines that perform tasks autonomously or semi-autonomously, have evolved from sci-fi concepts to essential tools in...

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We May Reach Our Mental Peak Between 55 and 60

Joseph Martines Nov 10, 2025, 7:40 AM

We May Reach Our Mental Peak Between 55 and 60

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These Strange Red Australian Rocks Hide Fossils With Impossible Precision

春风得意 Nov 10, 2025, 4:00 AM

Beneath the red plains of New South Wales, what looks like ordinary stone hides a secret millions of years old....