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Carnegie Mellon Robotics Institute

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Abstract

A simple light-sensitive CMOS ring oscillator, the oscillation frequency of which depends on the chip ambient illumination, is presented. An experimental 21-stage ring oscillator fabricated in 0.5 /spl mu/m CMOS changes the pulse frequency from 50 Hz in total darkness to 2 MHz in extreme bright ambient at V/sub dd/=1 V.

Notes

Text Reference

Nebojsa D. Jankovic and Vladimir Brajovic, "Light-sensitive CMOS ring oscillator," Electronics Letters, Vol. 36, No. 15, July, 2000, pp. 1281 - 1283.

BibTeX Reference

@article{Jankovic_2000_3622,
   author = "Nebojsa D Jankovic and Vladimir Brajovic",
   title = "Light-sensitive CMOS ring oscillator",
   journal = "Electronics Letters",
   pages = "1281 - 1283",
   month = "July",
   year = "2000",
   volume = "36",
   number = "15",
}

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