Abstract
A readout circuit for a 640 × 480 pixels FPA (focal plane array) has been successfully designed, fabricated and tested. The circuit solution is based on a per pixel source-follower direct injection (SFDI) pre-amplifier. Signal multiplexing is performed in both X and Y direction. The pixel size is 25 μm × 25μm. The chip is optimized for a QWIP (quantum well infrared photodetector) operating at a temperature of 70 K. The circuit has been realized in a standard 0.8 μm CMOS process.
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Martijn, H., Halldin, U., Helander, P. et al. A 640 by 480 Pixels Readout Circuit for IR Imaging. Analog Integrated Circuits and Signal Processing 22, 71–79 (2000). https://doi.org/10.1023/A:1008376111468
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DOI: https://doi.org/10.1023/A:1008376111468