A photosensor array for spectrophotometry

Lee, Peter and Simoni, Andrea and Sartori, Alvise and Torelli, Guido (1995) A photosensor array for spectrophotometry. Sensors and Actuators A: Physical, 47 (1-3). pp. 449-452. ISSN 0924-4247. (The full text of this publication is not available from this repository)

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A monolithic intelligent CMOS photosensor array specifically aimed at spectrophotometry is presented in which a linear photodiode array is integrated together with a charge amplifier, an analogue-to-digital converter, a digital programmable polynomial solver for pixel-level calibration, a set of control registers and a processor interface. This architecture reduces noise effects by using large pixels and by closely coupling the analogue-to-digital converter to the photosensors. This also simplifies the user interface as all analogue circuits are on chip. A digital polynomial solver performs pixel-by-pixel calibration to compensate for source, transmission medium and sensor nonlinearities. Low power consumption and 5 V operation render the sensor suitable for portable applications. The sensor was fabricated in a standard 1.2 mu m analogue CMOS technology with added light shield.

Item Type: Article
Uncontrolled keywords: Photosensor array; Spectrophotometry; CMOS
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts
Depositing User: O.O. Odanye
Date Deposited: 07 Jun 2009 21:30
Last Modified: 06 May 2014 11:26
Resource URI: https://kar.kent.ac.uk/id/eprint/19344 (The current URI for this page, for reference purposes)
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