Data Converter for Multistandard Mobile Phones

Aziz Yurttas, Erik Bruun, Rasmus Glarborg Jensen

    Research output: Contribution to journalJournal articleResearchpeer-review


    This paper describes an analog to digital converter (ADC) for mobile communication systems using a direct down conversion architecture. The ADC can be programmed to meet the requirements of different communication standards, including GSM (Global System for Mobile communication) and WCDMA (Wideband Code Division Multiple Access). The ADC is realized with a pipeline ADC architecture for WCDMA and a Sigma-Delta architecture for GSM. In order to have an optimized area and power consumption, the basic building blocks (opamps) of the converters are shared between the two converter architectures. The entire ADC consumes about 5.5 mW and occupies an active area of about 0.36 mm(2). A test circuit has been developed and fabricated and measurements show that both the required programmability and the required performance can be obtained using the proposed configurations.
    Original languageEnglish
    JournalAnalog Integrated Circuits and Signal Processing
    Issue number1
    Pages (from-to)53-61
    Publication statusPublished - 2004


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