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TitleSingle-chip CMOS optical microspectrometer
Author(s)Correia, J. H.
Graaf, G. de
Kong, S. H.
Bartek, M.
Wolffenbuttel, R. F.
KeywordsOn-chip optical microspectrometer
Fabry–Perot etalon
Light-to-frequency converter
internal/external bus interface
Issue date2000
JournalSensors and Actuators A: Physical
Citation"Sensors and Actuators A : Physical". ISSN 0924-4247. 82 (2000) 191-197.
Abstract(s)Numerous applications, e.g., systems for chemical analysis by optical absorption and emission line characterization, will benefit from the availability of low-cost single-chip spectrometers. A single-chip CMOS optical microspectrometer containing an array of 16 addressable Fabry–Perot etalons (each one with different resonance cavity length), photodetectors and circuits for read-out, multiplexing and driving a serial bus interface has been fabricated. The result is a chip that can operate using only four external connections (including Vdd and Vss). covering the visible spectral range of the spectrum with FWHM = 18 nm. Frequency output and serial bus interface allow easy multi-sensor, multi-chip interfacing using a microcontroller or a personal computer. Power consumption is 1250 µW for a clock frequency of 1 MHz
AccessOpen access
Appears in Collections:DEI - Artigos em revistas internacionais

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