TID Effects on a Data Acquisition System With Design Diversity Redundancy

Aguilera, C.; Vaz, Rafael Galhardo; Oliveira, Matheus Berger; Leorato, Vicente W.; Gonçalez, Odair Lélis; Balen, Tiago R.

doi:10.1109/tns.2017.2782689

Cited by 8 publications

(4 citation statements)

References 31 publications

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“…On the other hand, the inherent loop filter of ∆Σ architectures provides an intrinsic anti-aliasing feature that can save additional filtering stages at system level. In addition, the intrinsic oversampling feature of ∆Σ ADCs can be seen as a redundancy spread in time [79].…”

Section: Architectures and Applicationsmentioning

confidence: 99%

A Survey of Analog-to-Digital Converters for Operation under Radiation Environments

Pun-García

López‐Vallejo

2020

Electronics

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In this work, we analyze in depth multiple characteristic data of a representative population of radenv-ADCs (analog-to-digital converters able to operate under radiation). Selected ADCs behave without latch-up below 50 MeV·cm2/mg and are able to bear doses of ionizing radiation above 50 krad(Si). An exhaustive search of ADCs with radiation characterization data has been carried out throughout the literature. The obtained collection is analyzed and compared against the state of the art of scientific ADCs, which reached years ago the electrical performance that radenv-ADCs provide nowadays. In fact, for a given Nyquist sampling rate, radenv-ADCs require significantly more power to achieve lower effective resolution. The extracted performance patterns and conclusions from our study aim to serve as reference for new developments towards more efficient implementations. As tools for this purpose, we have conceived FOMTID and FOMSET, two new figures of merit to compare radenv-ADCs that consider electrical and radiation performance.

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Section: Architectures and Applicationsmentioning

confidence: 99%

A Survey of Analog-to-Digital Converters for Operation under Radiation Environments

Pun-García

López‐Vallejo

2020

Electronics

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“…6 that the radiation caused the SAR@74 to present gain and offset errors. This behavior is due to the appearance of entire ranges of missing codes and changing in the code occurrence probability, as detailed in [13]. Fig.…”

Section: B Test Results and Considerationsmentioning

confidence: 94%

“…In a previous work of our research group a faulttolerant data acquisition system (DAS) was proposed to cope with radiation effects and other environmental degradation sources [7,12,13,14]. The system was designed and programmed in a Commercial Programmable System-on-Chip (PSoC) from Cypress Semiconductor (now Infineon Technologies) [15] fabricated in a 130 nm CMOS process.…”

Section: Introductionmentioning

confidence: 99%

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Testing a Fault Tolerant Mixed-Signal Design Under TID and Heavy Ions

González

Machado

Vaz³

et al. 2021

JICS

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This work presents results of three distinct radiation tests performed upon a fault-tolerant data acquisition system comprising a design diversity redundancy technique. The first and second experiments are Total Ionizing Dose (TID) essays, comprising gamma and X-ray irradiations. The last experiment considers single event effects, in which two heavy ion irradiation campaigns are carried out. The case study system comprises three analog-to-digital converters and two software-based voters, besides additional software and hardware resources used for controlling, monitoring and memory management. The applied Diversity Triple Modular Redundancy (DTMR) technique, comprises different levels of diversity (temporal and architectural). The circuit was designed in a programmable System-on-Chip (PSoC), fabricated in a 130nm CMOS technology process. Results show that the technique may increase the lifetime of the system under TID if comparing with a non-redundant implementation. Considering the heavy ions experiments the system was proved effective to tolerate 100% of the observed errors originated in the converters, while errors in the processing unit present a higher criticality. Critical errors occurring in one of the voters were also observed. A second heavy-ion campaign was then carried out to investigate the voters reliability, comparing the dynamic cross-section of three different software-based voter schemes implemented in the considered PSoC.

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