A single-chip CMOS optical microspectrometer with light-to-frequency converter and bus interface

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 /spl mu/m CMOS...

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Bibliographic Details
Published inIEEE journal of solid-state circuits Vol. 37; no. 10; pp. 1344 - 1347
Main Authors Correia, J.H., de Graaf, G., Bartek, M., Wolffenbuttel, R.F.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.10.2002
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Arrays
Buses (vehicles)
Chip formation
Chips
Circuits
CMOS
CMOS technology
Driving
Energy consumption
Fabry-Perot
Frequency
Microcomputers
Microcontrollers
Optical arrays
Photodetectors
Resonance
RLC circuits
Serials
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Summary: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 /spl mu/m CMOS technology (chip area 3.9 /spl times/ 4.2 mm/sup 2/). The result is a chip that can operate using only four external connections (including V/sub dd/ and V/sub ss/) 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 /spl mu/W for a clock frequency of 1 MHz.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2002.803049