Electrically Isolating Thermally Coupled Device for Noise Suppression of Circuits in Deep Space

Computer Science – Performance

Scientific paper

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Digital Electronics, Transducers, Chips (Electronics), Noise Reduction, Microelectronics, Cmos, Soi (Semiconductors), Spacecraft Electronic Equipment

Scientific paper

Mixed mode rad hard avionics Systems on a Chip (SoC) designed for deep space applications such as Europa orbiters and Europa Landers will require data isolation circuits to block noise. This paper presents the simulation performance for a novel rad hard SOI CMOS compatible thermal transducer used for on-chip data isolation in SoC. The research presented involves the use of commercially available computer aided design tools to model the transient electrothermal behavior of the transducer. Both one- and two-dimensional analyses of a prototype thermal transducer were performed. Results indicate that thermal-based data isolator technology can pass a data bit in under a microsecond and, as a measurement of feasibility, I2C bus specifications can be met.

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