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Soft errors caused by ionizing radiation have emerged as a major concern for current generation of CMOS technologies and the trend is expected to get worse. Soft error rate (SER) measurement, expressed as number of failures encountered per billion hours of device operation, is time consuming and involves significant test cost. The cost stems from having to connect a device-under-test to a tester for...
In this paper we present a low cost fault-tolerant attitude determination system to a scientific satellite using COTS devices. We related our experience in developing the attitude determination system, where we combine proven fault tolerance techniques to protect the whole system composed only by COTS from the effects produced by transient faults. We detailed the failure cases and the detection, reconfiguration...
With the event of nanoscale technologies, new physical phenomena and technological limitations are increasing the process variability and its impact on circuit yield and performances. Like combinatory cells, the sequential cells also suffer of variations, impacting their timing characteristics. Regarding the timing behaviors, setup and hold time violation probabilities are increasing. This article...
While the CMOS analog circuits can be designed with the minimum-gate-length of the fabrication process in the alpha-power law MOSFET model, the length of a MOSFET gate has been chosen to be a larger scale than the minimum-gate-length in the conventional Shockleypsilas square model. In this paper, we describe a 6-b 100 MSPS CMOS current steering digital-to-analog converter (DAC) with the alpha-power...
In this paper, we present an automatic soft IP (Intellectual Property) generation method for high-speed Viterbi decoders. In our scheme, the synthesizable HDL (Hardware Description Language) code for the Viterbi decoder is automatically produced depending on not only the system parameters such as a coding rate but also the hardware architecture for parallel processing. The proposed method is implemented...
We describe a general VLSI architecture for the computation of arithmetic expressions including floating-point trancendental functions. This architecture is divided in three parts: a communication machine, the control part of a computation machine and the operative part of this computation machine. In order to compute the most usual trancendental functions, we introduced some general algorithms, presented...
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