A novel MOS compatible light intensity-to-frequency converter suited for monolithic integration
- 1 June 1982
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 17 (3) , 588-591
- https://doi.org/10.1109/jssc.1982.1051780
Abstract
A novel circuit for light intensity-to-frequency conversion (LFC) suited for monolithic integration in MOS technologies is presented. The function is based on an R~S~ flip-flop whose toggle frequency is controlled by the discharge of a capacitance at the inputs of the R~S~ FF. For homogeneous illumination, the output frequency is proportional to the incident light level. For an implemented device, a dynamic range of more than six decades (approximately 0.2 lux up to >2/spl times/10/SUP 5/ lux) and a range of linearity of five decades were found.Keywords
This publication has 1 reference indexed in Scilit:
- I/sup 2/L timing circuit for the 1 ms-10 s rangeIEEE Journal of Solid-State Circuits, 1977