Human Retinal Photoreceptor-Inspired Sensor with Adjustable Gain from 0.1-10(6) and Wide Dynamic Range Over 140dB

Yihong Qi,Xiaolin Liu,Zhenhao Feng,Qian Li,Kuiren Su,Xianda Zhou,Jianping Guo,Kai Wang

2021 IEEE INTERNATIONAL ELECTRON DEVICES MEETING (IEDM)（2021）

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摘要

Inspired by a human retina, we report on a sensor that is formed by a photodiode-body-biased MOSFET (PD-MOSFET). Study suggests that the proposed sensor behaves similarly to a human retinal photoreceptor in terms of photosensing functionalities with a gain tunable from 0.1 to 10(6), a dynamic range of >140dB in a broad spectral range from 400nm to 1000nm.

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