TY - JOUR
T1 - Current mode image sensor with two transistors per pixel
AU - Gruev, Viktor
AU - Yang, Zheng
AU - Van Der Spiegel, Jan
AU - Etienne-Cummings, Ralph
N1 - Funding Information:
Manuscript received November 11, 2008; revised March 04, 2009 and June 02, 2009; accepted July 21, 2009. First published November 24, 2009; current version published June 09, 2010. This work was supported in part by the U.S. Air Force Office of Scientific Research (AFOSR) Grant FA9550-05-1-0052. This paper was recommended by Associate Editor M. Delgado-Restituto.
PY - 2010
Y1 - 2010
N2 - A linear current mode active pixel sensor for low fixed-pattern noise imaging is presented. The photo pixel is composed of a photodiode, a reset transistor, and a transconductance amplifier transistor. The address switch transistor is placed outside the pixel. The increased linearity of the pixel current coupled with current mode difference double sampling greatly reduces spatial variations across the image sensor array. The fabricated image sensor is composed of an array of 50 × 128 pixels and consumes 5 mW at 30 fps. Column fixed pattern noise of 0.1% from the saturated current and signal to noise ratio of 43.3 dB is achieved.
AB - A linear current mode active pixel sensor for low fixed-pattern noise imaging is presented. The photo pixel is composed of a photodiode, a reset transistor, and a transconductance amplifier transistor. The address switch transistor is placed outside the pixel. The increased linearity of the pixel current coupled with current mode difference double sampling greatly reduces spatial variations across the image sensor array. The fabricated image sensor is composed of an array of 50 × 128 pixels and consumes 5 mW at 30 fps. Column fixed pattern noise of 0.1% from the saturated current and signal to noise ratio of 43.3 dB is achieved.
KW - Focal plane image sensors
KW - Image sensors
KW - Linear response
KW - Low power sensors
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U2 - 10.1109/TCSI.2009.2030093
DO - 10.1109/TCSI.2009.2030093
M3 - Article
AN - SCOPUS:77953480042
SN - 1549-8328
VL - 57
SP - 1154
EP - 1165
JO - IEEE Transactions on Circuits and Systems I: Regular Papers
JF - IEEE Transactions on Circuits and Systems I: Regular Papers
IS - 6
M1 - 5340553
ER -