A 0.45V-to-2.7V inductive-coupling level shifter

Keita Takatsu, Kiichi Niitsu, Tsunaaki Shidei, Noriyuki Miura, Tadahiro Kuroda

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

    Abstract

    This paper presents a 0.45V-to-2.7V level shifter utilizing inductive coupling. Since primary and secondary coils are AC-coupled, each coil can be biased at arbitrary voltage independent from the conversion level difference. This enables both the primary and the secondary circuits to operate at the optimal operating region. In addition, the inductive coupling itself can provide an additional intermediate level-shifting by exploiting a coil-turn ratio between the primary and the secondary coils. As a result, wide-range voltage level conversion can be achieved. Test chip measurement in 65nm CMOS demonstrates voltage level conversion from 0.45V to 2.7V. Compared to a conventional level shifter, the primary voltage is reduced by 0.24V. In addition, the energy-delay product is reduced to 1/8.

    Original languageEnglish
    Title of host publication2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010
    Pages205-208
    Number of pages4
    DOIs
    Publication statusPublished - 2010 Dec 1
    Event2010 6th IEEE Asian Solid-State Circuits Conference, A-SSCC 2010 - Beijing, China
    Duration: 2010 Nov 82010 Nov 10

    Publication series

    Name2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010

    Other

    Other2010 6th IEEE Asian Solid-State Circuits Conference, A-SSCC 2010
    CountryChina
    CityBeijing
    Period10/11/810/11/10

    ASJC Scopus subject areas

    • Hardware and Architecture
    • Electrical and Electronic Engineering

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