Samuel Sordo Ibáñez

Centro Nacional de Microelectrónica (CSIC) - Universidad de Sevilla · Electrónica y Electromagnetismo

This paper presents an application-specific integrated circuit (ASIC) aimed for an alternative design of a digital 3-D magnetometer for space applications, with a significant reduction in mass and volume while maintaining a high sensitivity. The proposed system uses magnetic field sensors based on anisotropic magnetoresistances and a rad-hard mixed...

A radiation-hardened-by-design (RHBD) digital library, developed for the Austria Microsystems (AMS) 0.35um CMOS technology has been applied in a mixed-signal ASIC that operates as a multi-channel data acquisition system for magnetometers using anisotropic magneto-resistances (AMR). The circuit has been tested in the Heavy-Ion facilities of the Univ...

This paper presents a rad-hard ASIC that implements a set of instrumentation channels that are highly configurable in terms of resolution, conversion rate, and input voltage range, providing a flexible solution for space applications requiring the digital acquisition of slow input signals with medium-to-high resolutions up to 16 bits. The different...

A multichannel high-resolution single-slope analogue-to-digital converter (SS ADC) is presented that automatically compensates for process, voltage and temperature variations, as well as for radiation effects, in order to be used in extreme environmental conditions. The design combines an efficient implementation by using a feedback loop that ensur...

Many space applications require the measurement of magnetic fields. This includes many scientific and meteorological instruments, as well as satellite attitude control systems. The most widely used method for measuring magnetic fields in space missions has been the use of fluxgate sensors, mainly due to their reliability, robustness and relatively...

The design of mixed-signal ASICs for on-board space applications can provide several advantages that would not otherwise be possible with discrete components. However, extreme environmental conditions in terms of radiation and temperature imply a detailed knowledge of the technology used while CMOS commercial foundries do not usually have or make a...

This work presents experimental results for the single-event effects characterization of a commercial (Austria Microsystems) 0.35 µm CMOS technology. It improves and expands previous results. The knowledge gained is being applied in the development of a RHBD digital library.

Many image sensors employ column-parallel ADCs in their readout structures. Single-slope ADCs are ideally suited for these multi-channel applications due to their simplicity, low power and small overall area. The ramp generator, shared by all the converters in the readout architecture, is a key element that has a direct effect in the transfer chara...

This paper describes the design of a mixed-signal ASIC for space application and the techniques employed for radiation hardening and temperature effects compensation. The work is part of a planned long-term effort and collaboration between "Instituto de Microelectrónica de Sevilla (IMSE)", "Universidad de Sevilla (US)", and "Instituto Nacional de T...

The design of mixed-signal application specific integrated circuits (ASICs) requires a detailed knowledge of the behavior of the technology which exceeds the needs of digital designs. For space applications, with its extended-temperature and radiation environment, the job of the mixed-signal designer is made even more difficult as in most cases com...

The Mercury Imaging X-ray Spectrometer (MIXS) will be launched by ESA/JAXA as part of the BepiColombo mission to provide an insight about the formation and evolution of Mercury. In order to meet with the science objectives, MIXS consists of two telescopes: a collimator (MIXS-C) that provides an efficient flux collection over a broad range of energi...

CARTIF ha desarrollado el SiLGeM (Sistema Libre de Gestión Multibus), un sistema tanto hardware como software para el control y gestión simultánea de un sistema multibus de forma no centralizada, bajo el paradigma del software libre, donde cada uno de los buses del sistema pueden ser iguales o diferentes, siendo considerados hasta el momento dos es...