Always-on

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Sub-μA Always-on Drive Loop for 3-Axis MEMS Gyroscope

Sub-μA Always-on Drive Loop for 3-Axis MEMS Gyroscope 150 150
Author(s): Longjie Zhong, Jinwen Zhang, Ling Wang, Wenfei Cao, Kangkang Cai, Tiegang Hu, Zhangming Zhu

Abstract:

The always-on drive loop with low power is a key enabler for intelligent inertial measurement unit (IMU). One of the key design challenges of the always-on drive loop is the trade-off between the always-on power consumption and the wake-up time. To meet this challenge, the burst-mode always-on drive loop composed …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3672969
Publisher: IEEE

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A 0.8-μm 32-Mpixel Always-On CMOS Image Sensor With Windmill-Pattern Edge Extraction and On-Chip DNN

A 0.8-μm 32-Mpixel Always-On CMOS Image Sensor With Windmill-Pattern Edge Extraction and On-Chip DNN 150 150
Author(s): Mamoru Sato, Sachio Akebono, Kazuyoshi Yasuoka, Eriko Kato, Masahiro Tsuruta, Chiaki Takano, Kensuke Ota, Kazuki Haraguchi, Masahiro Watanabe, Genki Fujii, Koichiro Yamanaka, Kazunori Yasuda, Satoshi Minami, Katsuhiko Hanzawa, Kohei Matsuda, Akihiko Kato, Yosuke Ueno

Abstract:

This letter presents a CMOS image sensor (CIS) that integrates two operation modes: 1) a high-resolution viewing mode with $0.8~\mu $ m 32 Mpixels and 2) a low-power always-on object recognition mode consuming 2.67 mW at 10 frames/s. The CIS features a unique windmill-pattern analog edge extraction circuit that is resilient to illumination variations. An …

Published in: IEEE Solid-State Circuits Letters
Page(s): 353 – 356
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3628314
Publisher: IEEE

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