多分辨率高速线列CMOS图像传感器设计

Design of a Multiple Resolution and High Speed Linear CMOS Image Sensor

摘要:

设计并验证了一款可选分辨率、高速1024线列CMOS图像传感器。为了优化列总线读出速率,芯片采用总线分割技术以减小总线寄生电容,有效提升了信号读出速率。传感器具有4种可选择分辨率功能,使其具有更高的帧频。设计的芯片采用0.5μm标准CMOS工艺成功流片,验证了设计的正确性。测试结果表明:满阱容量为4.76Me-/像素,动态范围为75dB；在128分辨率下,帧频能达到36000frames/s。

Abstract:

A 1024 linear CMOS image sensor (CIS) with programmable resolution and high speed was presented and verified. In order to optimize the column bus readout rate, this sensor adopted column bus segmentation technology, which effectively reduced the parasitic capacitance on the bus and increased the signal readout rate. The sensor featured 4 kind of programmable resolution for higher frame rate. In this paper, the chip was successfully manufactured by 0.5μm CMOS process, and the photoelectric response of the device was tested and evaluated. The results show that the sensor's full well charge is 4.76Me-/pixel, and dynamic range is 75dB. At 128 resolution, frame rate reaches 36000frames/s.