Contribution in the Design and Verification of a 32-Channel A/D Converter with Serialized Input Analog Data Bus for X-Ray Detectors Read-Out within Earth-Moon-Mars Mission

This thesis presents the design and verification of a low-power, reconfigurable integrated circuit developed within the LEM-X project, part of the broader Earth-Moon-Mars (EMM) initiative. The system is based on an event-driven incremental Analog to Digital Converter (ADC) architecture, specifically tailored to digitize analog signals from Silicon Drift Detectors (SDDs) with high efficiency and robustness. As part of the analog front-end, the output buffer was redesigned, transitioning from a pseudo-differential to a fully differential architecture in order to improve output dynamic range. The proposed solution targets compactness, configurability, and energy efficiency, which are key features for space-grade instrumentation. Circuit-level simulations validate the architecture’s suitability for future deployment in harsh operating environments.