Continuous-time Sigma-Delta AD conversion for wireless communication

K.J.P. Philips, P.A.C.M. Nuijten, A.H.M. Roermund, van

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In a quest for flexibility, receivers for wireless communications are being digitized. Analog filters and variable gain amplifiers (VGA) are exchanged for digital processing at the expense of a very challenging ADC. Wireless interconnectivity in particular, seems a first candidate for a full-digital baseband implementation. Compared to mobile communication, sensitivity and interferer levels are moderate. Two converter solutions for a full-digital Bluetooth receiver are presented here. The first –rather conventional- ADC achieves high resolution and low power consumption by careful design. The second solution merges analog filtering and VGA into the ADC. This results in a further power reduction because the converter performance is better tailored to the input signal.
Original languageEnglish
Title of host publicationAnalog Circuit Design
EditorsJ.H. Huijsing, M. Steyaert, A. Roermund, van
Place of PublicationDordrecht
PublisherKluwer Academic Publishers
Number of pages405
ISBN (Print)1-4020-2786-9
Publication statusPublished - 2004


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