DocumentCode :
826831
Title :
A single-chip CMOS optical microspectrometer with light-to-frequency converter and bus interface
Author :
Correia, José Higino ; De Graaf, Ger ; Bartek, Marian ; Wolffenbuttel, Reinoud F.
Author_Institution :
Dept. of Ind. Electron., Univ. of Minho, Guimaraes, Portugal
Volume :
37
Issue :
10
fYear :
2002
fDate :
10/1/2002 12:00:00 AM
Firstpage :
1344
Lastpage :
1347
Abstract :
A single-chip CMOS optical microspectrometer containing an array of 16 addressable Fabry-Perot etalons (each one with a different resonance cavity length), photodetectors, and circuits for readout, multiplexing, and driving a serial bus interface has been fabricated in a standard 1.6 μm CMOS technology (chip area 3.9 × 4.2 mm2). The result is a chip that can operate using only four external connections (including Vdd and Vss) covering the optical range of 380-500 nm with full-width half-maximum (FWHM) = 18 nm. Frequency output and serial bus interface allow easy multisensor and multichip interfacing using a microcontroller or a personal computer. Power consumption is 1250 μW for a clock frequency of 1 MHz.
Keywords :
CMOS image sensors; Fabry-Perot interferometers; convertors; integrated optoelectronics; optical arrays; photodetectors; photodiodes; readout electronics; visible spectrometers; 1 MHz; 1250 muW; 3.9 mm; 380 to 500 nm; 4.2 mm; Fabry-Perot etalon arrays; addressable Fabry-Perot etalons; light-to-frequency converter; multiplexing circuits; photodetectors; readout circuits; resonance cavity length; serial bus interface driving; single-chip CMOS optical microspectrometer; CMOS technology; Energy consumption; Fabry-Perot; Frequency; Microcomputers; Microcontrollers; Optical arrays; Photodetectors; RLC circuits; Resonance;
fLanguage :
English
Journal_Title :
Solid-State Circuits, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9200
Type :
jour
DOI :
10.1109/JSSC.2002.803049
Filename :
1035951
Link To Document :
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