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Micropower IC,Eric A. Vittoz

Micropower IC   (Citations: 4)
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Various aspects of the realization of micropower LSI circuits are discussed, from the requirements on CMOS technologies to constraints on systems. Available passive and active devices are reviewed, with emphasis on DC, AC and noise characteristics of transistors at very low currents. Problems and solutions encountered in digital and analog circuits are illustrated with a few examples.
Published in 1980.
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    • ...Eric Vittoz pioneered low power techniques already 1980 [3] and presented the first analysis of power consumption in analog circuits some 10 years later [4, 5]. This analysis of power consumption in analog circuits was further developed by Enz and Vittoz [6]...

    Christer SvenssonJet al. Power consumption of analog circuits: a tutorial

    • ...The extreme case in low-voltage circuit design is a subthreshold circuit, which uses a supply voltage ( ) lower than the threshold voltage ( ) of transistor [3]–[7]...
    • ...The use of leakage current as operating current leads to limited performance, and hence, such circuit style was used for ultralow power circuits with very low operating frequency (up to hundreds of kilohertz) [3], [5], [6]...
    • ...region) [5]. Since a subthreshold circuit operates in a weak inversion region, device characteristics of subthreshold circuits are quite different from those in (conventional) super-threshold circuits that operate in a strong inversion region [3], [4]...
    • ...Hence, the subthreshold circuit has characteristics of a bipolar transistor [3] so that delay in the ideal subthreshold operation can be approximated to the base transit time in the bipolar transistor...

    Jae-Joon Kimet al. Double gate-MOSFET subthreshold circuit for ultralow power application...

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