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2 International Journal of Microelectronics and Computer Science

2 2016

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Selected hardware solutions used in the process of monitoring bioparameters

Michnik A., Szczurek Z., Szuster B., Kubik B., Kowalski P.

International Journal of Microelectronics and Computer Science

2016

Vol. 7, nr 1

26--32

The paper presents the idea behind the implementation of a system designed to monitor biomedical parameters and the subject's behaviour on the basis of the architecture of measurement modules located on the body. The system was developed as a result of market launch of new generations of electronic devices combining high functionality, small size and low power consumption. The paper presents the elements of the system called BioSip, along with hardware solutions selected for the objectives to be accomplished, i.e. providing communication between system elements that would be efficient and resistant to artefacts, extending the time of operation for battery power supply, as well as ensuring a satisfactory level of reliability and ease of use.

A 400 fJ per-cycle frequency reference for internet of things

Coustans M., Krummenacher F., Terrier C., Kayal M.

International Journal of Microelectronics and Computer Science

2016

Vol. 7, nr 2

41--46

This work presents an ultra-low power oscillator designed to target different contexts, such as crystal-assisted timekeeping, reference oscillator to optimize the always on domain of a microcontroller or wake-up timer. This oscillator enables ultralow power operation in 0.18 μm CMOS technology; the core oscillator consumes 2.5 nW at room temperature, with a temperature stability of 14 ppm/°C [-40°C - 60°C] and 0.07 %/V supply sensitivity.