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Findings from University of Tennessee Provides New Data about Nuclear Science and Technology (Radiation Hardening of an SiGe BiCMOS Wilkinson ADC for...

July 29, 2014



Findings from University of Tennessee Provides New Data about Nuclear Science and Technology (Radiation Hardening of an SiGe BiCMOS Wilkinson ADC for Distributed Motor Controller Application)

By a News Reporter-Staff News Editor at Journal of Technology -- New research on Nuclear Science and Technology is the subject of a report. According to news reporting out of Knoxville, Tennessee, by VerticalNews editors, research stated, "The radiation robustness of a newly designed Wilkinson analog-to-digital converter (ADC) is being investigated. The ADC is a front-end design block within a cold capable, analog sense, application-specific integrated circuit (ASIC) manufactured using the IBM 0.5 mu m silicon germanium (SiGe) BiCMOS 5HP process."

Our news journalists obtained a quote from the research from the University of Tennessee, "The ASIC is part of a next-generation, cold capable, distributed motor controller architecture, which is a candidate for the next generation of Mars rovers. Its main function is to interface with various sensor types to monitor motor health (i.e., temperature, mechanical stress, pressure). While relatively well-hardened against total ionizing dose and destructive single-event latchup, the ADC showed some SEU (SET) sensitivity that is heavily dependent on its input channel configuration. For this study, we used a combination of experiments (pulsed-laser) and Cadence mixed-mode SEE simulations to explain the heavy ion irradiation results."

According to the news editors, the research concluded: "We concluded that ADC input impedance configuration should be carefully controlled in the design of radiation-hardened systems for space."

For more information on this research see: Radiation Hardening of an SiGe BiCMOS Wilkinson ADC for Distributed Motor Controller Application. IEEE Transactions on Nuclear Science, 2014;61(3):1236-1242. IEEE Transactions on Nuclear Science can be contacted at: Ieee-Inst Electrical Electronics Engineers Inc, 445 Hoes Lane, Piscataway, NJ 08855-4141, USA. (Institute of Electrical and Electronics Engineers - www.ieee.org/; IEEE Transactions on Nuclear Science - ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=23)

Our news journalists report that additional information may be obtained by contacting P.C. Adell, University of Tennessee, Dept. of Elect Engn, Knoxville, TN 37996, United States. Additional authors for this research include J. Yager, Z. Pannell, J. Shelton, M.M. Mojarradi, B. Blalock, G. Allen and R. Some.

Keywords for this news article include: Knoxville, Tennessee, United States, North and Central America, Nuclear Science and Technology

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Journal of Technology


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