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Patent Searching and Data


Title:
IMAGE SENSOR AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/043141
Kind Code:
A1
Abstract:
This technology relates to an image sensor and an electronic device that enable suppression of power consumption. A reference signal output unit that outputs a reference signal the level of which changes comprises: a plurality of DACs each including a plurality of current sources, and a plurality of switches for controlling currents passed by the current sources; and a load resistance for outputting the reference signal. Further, the reference signal output unit is connected to three or more power sources, and among combinations of two power sources out of the three or more power sources, each of two or more combinations of the power sources has a first path over which a current controlled by the switch flows, and a second path over which a current in the same direction flows through the load resistance. This technology is applicable, for example, to an image sensor that performs reference signal comparison-type AD conversion.

Inventors:
TANAKA Terukazu (4-14-1 Asahi-cho, Atsugi-sh, Kanagawa 14, 〒2430014, JP)
SAKAKIBARA Masaki (4-14-1 Asahi-cho, Atsugi-sh, Kanagawa 14, 〒2430014, JP)
Application Number:
JP2017/029495
Publication Date:
March 08, 2018
Filing Date:
August 17, 2017
Export Citation:
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Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORPORATION (4-14-1, Asahi-cho Atsugi-sh, Kanagawa 14, 〒2430014, JP)
International Classes:
H04N5/378; H03M1/56; H04N5/374
Foreign References:
JP2011259407A2011-12-22
JP2008219243A2008-09-18
JP2012109658A2012-06-07
JP2009290658A2009-12-10
Attorney, Agent or Firm:
NISHIKAWA Takashi et al. (Nishishinjukukimuraya Building 9F, 5-25 Nishi-Shinjuku 7-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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