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A CMOS current mirroring integration readout structure for infrared focal plane arrays
Date
1998-09-24
Author
Külah, Haluk
Akın, Tayfun
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
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This paper reports a new, high performance CMOS readout structure, called Current Mirroring Integration (CMI), for high-resolution infrared Focal Plane Array (FPA) applications. Using the integration capacitance outside the FPA, the unit cell area is decreased, making the circuit suitable for high-resolution applications. Moreover, the readout circuit offers high injection efficiency, perfect (almost-zero) detector bias, and large dynamic range in a small pixel area. The circuit provides a maximum charge storage capacity of 5.25×10 7 electrons and a maximum transimpedance of 6×10 7 Ω for a 2pF integration capacitance and 5V power supply. The unit-cell employs only nine MOS transistors and occupies an area of 20µm × 25µm in a 0.8µm CMOS process.
Subject Keywords
Detectors
,
Circuits
,
Preamplifiers
,
Decision support systems
,
Capacitance
,
Feedback amplifiers
,
Night vision
,
Night vision
,
Readout electronics
,
Dark current
,
Noise reduction
URI
https://hdl.handle.net/11511/46408
DOI
https://doi.org/10.1109/esscir.1998.186310
Collections
Department of Electrical and Electronics Engineering, Conference / Seminar