Low Voltage Low Power CMOS Image Sensor with A New Rail-to-Rail Readout Circuit
نویسنده
چکیده
In this paper a new rail-to-rail pixel readout architecture is proposed to enhance the performance of CMOS image sensor for both low voltage and low power applications. Due to this new readout circuit, the enough input voltage swing under a low supply voltage is achieved and guaranteed for correct successive signal processing. As a consequence, the ability of working under a lower voltage using the same process is greatly improved. The layout size of each pixel is 17um×11.55um. The design of a 64×64 bits CMOS image sensor circuit has been completed. The proposed CMOS image sensor can extend its operating voltage from 3.3V even down to 1.8V for a 0.35um process. The total power dissipation is 0.528mW at 3.3V supply and down to 0.102mW at 1.8V. Key-Words: CMOS, Image sensor, Rail-to-rail readout, Low voltage, Low power, Pixel
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