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This paper presents the implementation of an undersampled LC bandpass ΣΔ ADC with a raised-cosine feedback DAC. It directly converts after the LNA a signal centered in the ISM band at 2.442GHz with a sampling frequency of 3.256GHz. This circuit has been fabricated in a 130nm CMOS process, it occupies an area of 0.27mm<sup>2</sup> and is… (More)
In this paper, a layout scheme for accurate common-centroid rectangular unit-capacitor arrays is presented with detailed explanation of the rules used to improve matching. This layout technique is combined with a common-centroid arbitrary-value capacitor placement algorithm to form an automatic capacitor array generation tool. Finally, design and… (More)
Infections with a dental origin are sometimes complicated with chronic osteoperiostitis and are seen clinically as a pseudotumour. We present a case together with the diagnostic and therapeutic approaches.