Capacitance

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A Fully Integrated Digital LDO With Adaptive Sampling and Statistical Comparator Selection

A Fully Integrated Digital LDO With Adaptive Sampling and Statistical Comparator Selection 150 150
Author(s): Shun Yamaguchi, Takashi Hisakado, Osami Wada, Mahfuzul Islam

Abstract:

Digital LDOs are gaining attention for their operation with small output capacitance. Adaptive sampling with a large frequency scaling ratio is required for fast transient response with low-power operation. Furthermore, the design of a fluctuation detector to deal with large load steps is important. This letter describes an adaptive-sampling digital …

Published in: IEEE Solid-State Circuits Letters
Page(s): 163 – 166
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3385233
Publisher: IEEE

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A 23.9-μW 13.6-Bit Period Modulation-Based Capacitance-to-Digital Converter With Dynamic Current Mirror Front-End

A 23.9-μW 13.6-Bit Period Modulation-Based Capacitance-to-Digital Converter With Dynamic Current Mirror Front-End 150 150
Author(s): Hyeyeon Lee, Donguk Seo, Young-Jin Woo, Yoonmyung Lee, Inhee Lee, Youngcheol Chae

Abstract:

This letter proposes a low-power high-precision capacitance-to-digital converter (CDC) utilizing a dynamic current mirror (DCM) to transform a sensor input capacitance $(C_{\mathrm{ IN}})$ into an output current. The resulting current is directly proportional to the ratio of $C_{\mathrm{ IN}}$ to an internal reference capacitor $(C_{\mathrm {REF}})$ and …

Published in: IEEE Solid-State Circuits Letters
Page(s): 135 – 138
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3382813
Publisher: IEEE

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