A DC-coupled RF Amplifier in CMOS with DC-feedback

R. van der Werf, Anne J. Annema, Bram Nauta, A. Tudose

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    Abstract - A CMOS multistage RF amplifier with DC coupling is presented. A complete optimisation of the various stages is done to maximize the RF gain for a given power budget. To decrease the effects of offsets and tolerances in high gain multistage amplifiers usually (lossy) AC coupling is used. The presented circuit employs DC coupling and DC control circuitry to avoid coupling-induced losses. Compared to existing competing AC-coupled designs the presented one has much more gain at the same power consumption with a lower die area. For the 3-stage design vehicle, with Rsrc = 500Ω and Cout = 400fF, the maximal signal power gain at 4mA supply current is 33dB at 1.9GHz.
    Original languageUndefined
    Title of host publication13th ProRISC Workshop on Circuits, Systems and Signal Processing
    Place of PublicationUtrecht
    Number of pages4
    ISBN (Print)90-73461-33-2
    Publication statusPublished - Nov 2002
    Event13th Workshop on Circuits, Systems and Signal Processing, ProRISC 2002 - Veldhoven, Netherlands
    Duration: 28 Nov 200229 Nov 2002
    Conference number: 13

    Publication series

    PublisherSTW Technology Foundation


    Workshop13th Workshop on Circuits, Systems and Signal Processing, ProRISC 2002


    • Mismatch and Drift Control
    • IR-67436
    • EWI-14411
    • METIS-207353
    • High Frequency Amplifier Design
    • Active Commonand Differential Feedback

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