Title:
TAIL CURRENT BOOST CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2021/145122
Kind Code:
A1
Abstract:
An image sensor and electronic apparatus comprise a pixel circuit configured to generate an analog signal; a vertical signal line configured to convey the analog signal from the pixel circuit; an analog amplifier circuit configured to receive the analog signal via the vertical signal line and generate an amplified signal; and a tail current boost circuit configured to modify an instantaneous gain bandwidth product of the analog amplifier circuit by temporarily modifying a tail current of the analog amplifier circuit.
Inventors:
ZEITUNI GOLAN (JP)
ESHEL NOAM (JP)
ESHEL NOAM (JP)
Application Number:
PCT/JP2020/046725
Publication Date:
July 22, 2021
Filing Date:
December 15, 2020
Export Citation:
Assignee:
SONY SEMICONDUCTOR SOLUTIONS CORP (JP)
International Classes:
H03F3/08; H03F1/22; H03F1/48; H03F3/45; H03F3/50; H03F3/70; H04N5/335
Foreign References:
| US4701720A | 1987-10-20 | |||
| US20140266435A1 | 2014-09-18 | |||
| CN106026954A | 2016-10-12 | |||
| US20190246058A1 | 2019-08-08 |
Other References:
HOSSEIN KASSIRI B ET AL: "Slew-rate enhancement for a single-ended low-power two-stage amplifier", CIRCUITS AND SYSTEMS (ISCAS), 2013 IEEE INTERNATIONAL SYMPOSIUM ON, IEEE, 19 May 2013 (2013-05-19), pages 1829 - 1832, XP032446294, ISBN: 978-1-4673-5760-9, DOI: 10.1109/ISCAS.2013.6572221
Attorney, Agent or Firm:
TSUBASA PATENT PROFESSIONAL CORPORATION (JP)
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