Mismatch-tolerant read-in IC with voltage-drop compensation for infrared scene projectors

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This letter presents a mismatch-tolerant read-in integrated circuit (RIIC) with voltage-drop compensation applicable to high-speed and high-temperature infrared scene projectors. A current-programmed unit pixel is designed to compensate for ground-line voltage drops, thus improving the array-wide current uniformity. The proposed mismatch-tolerant design circumvents non-monotonic fluctuations in the output current, irrespective of the matching properties of sampling capacitors and switches. A prototype RIIC with a 32 x 32 unit-pixel array is fabricated in a 0.18-mu m CMOS process. The RIIC compensates for voltage drops up to 500mV with error currents below 1 mu A and achieves 10-bit accuracy with output-current non-monotonicity eliminated.
Publisher
IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
Issue Date
2018-06
Language
English
Article Type
Article
Citation

IEICE ELECTRONICS EXPRESS, v.15, no.11

ISSN
1349-2543
DOI
10.1587/elex.15.20180182
URI
http://hdl.handle.net/10203/244013
Appears in Collection
EE-Journal Papers(저널논문)
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