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        A CMOS 80mW 400MHz seventh-order MLF FLF linear phase filter with gain boost

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        Author
        Zhu, X.
        Sun, Y.
        Moritz, J.
        Attention
        2299/7061
        Abstract
        A 400MHz CMOS seventh-order linear phase gm-C filter based on current-mode (CM) follow-the-leader-feedback (FLF) structure is realized. The filter is implemented using a fully-differential linear operational transconductance amplifier (OTA) based on source degeneration topology. PSpice simulations in a standard TSMC 0.18mum CMOS process and with 2.5V power supply have shown that the cut-off frequency of the filter ranges from 290MHz to 430MHz and dynamic range is about 54dB. The group delay ripple is approximately 6% over the whole tuning range and total power consumption is only 78.7mW at 400MHz cut-off frequency.
        Publication date
        2008
        Published in
        Procs IEEE 15th Int Conf on Electronics, Circuits & Systems
        Published version
        https://doi.org/10.1109/ICECS.2008.4674850
        Other links
        http://hdl.handle.net/2299/7061
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        School of Engineering and Technology
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