A 0.18μm CMOS 300MHz Current-Mode LF Seventh-order Linear Phase Filter for Hard Disk Read Channels

X. Zhu, Y. Sun, J. Moritz

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    12 Citations (Scopus)
    33 Downloads (Pure)

    Abstract

    A 300MHz CMOS seventh-order linear phase gm-C filter based on a current-mode multiple loop feedback (MLF) leap-frog (LF) structure is realized. The filter is implemented using a fully-differential linear operational transconductance amplifier (OTA) based on a source degeneration topology. PSpice simulations using a standard TSMC 0.18μm CMOS process with 2.5V power supply have shown that the cut-off frequency of the filter can be tuned from 260MHz to 320MHz and dynamic range is about 66dB. Group delay ripple is approximately 4.5% over the whole tuning range and maximum power consumption is 210mW.
    Original languageEnglish
    Title of host publicationIEEE Int Symposium on Circuits and Systems, ISCAS 2007
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    Pages3307-3310
    ISBN (Print)1-4244-0920-9
    DOIs
    Publication statusPublished - 2007

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