Invention Grant
- Patent Title: Image sensors with distributed amplifiers and related methods
- Patent Title (中): 具有分布式放大器和相关方法的图像传感器
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Application No.: US11223558Application Date: 2005-09-09
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Publication No.: US07265329B2Publication Date: 2007-09-04
- Inventor: Robert Henderson , Matthew Purcell
- Applicant: Robert Henderson , Matthew Purcell
- Applicant Address: GB Buckinghamshire
- Assignee: STMicroelectronics Ltd.
- Current Assignee: STMicroelectronics Ltd.
- Current Assignee Address: GB Buckinghamshire
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Agent Lisa K. Jorgenson
- Priority: EP04255476 20040909
- Main IPC: H01L37/00
- IPC: H01L37/00 ; H03F3/08 ; H04N3/14 ; H03M1/12
Abstract:
The image sensor makes use of a distributed amplifier having its non-inverting input provided by a pixel amplifier transistor, and its inverting input and output provided in the pixel's column circuitry. The distributed amplifier is directly integrated with the image sensor's ADC circuit, and sampling and autozero are performed in a single step, thus reducing the number of noise contributions made by the components of the image sensor's readout chain.
Public/Granted literature
- US20060049334A1 Image sensors Public/Granted day:2006-03-09
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