Lee, P. and Simoni, A. and Sartori, A. and Torelli, G. (1995) A photosensor array for spectrophotometry. Sensors and Actuators A-Physical, 47 (1-3). pp. 449-452. ISSN 0924-4247.
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| Official URL http://dx.doi.org/10.1016/0924-4247(94)00939-F |
Abstract
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: | 08 May 2012 11:13 |
| Resource URI: | http://kar.kent.ac.uk/id/eprint/19344 (The current URI for this page, for reference purposes) |
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