Title :
Bipolar circuits for readout of an integrated silicon color sensor
Author :
Wolffenbuttel, R.F. ; de Graaf, G. ; Engen, E.
Author_Institution :
Dept. of Electr. Eng., Delft Univ. of Technol., Netherlands
fDate :
30 Apr-3 May 1995
Abstract :
A color sensor based on the wavelength dependent response of reverse-biased photodiodes in silicon has been integrated with bipolar readout circuits. An integrated chroma amplifier has been realised to provide a color output signal determined by the ratio between photocurrents and a luminance amplifier to supply an output current proportional to the logarithm of the photocurrent, using translinear circuits
Keywords :
bipolar analogue integrated circuits; colorimetry; elemental semiconductors; intelligent sensors; photodetectors; photodiodes; silicon; Si; bipolar readout circuits; integrated chroma amplifier; luminance amplifier; photodiodes; silicon color sensor; translinear circuits; Charge carriers; Circuits; Intelligent sensors; Optical amplifiers; Optical arrays; Optical filters; Optical sensors; Photoconductivity; Photodiodes; Silicon;
Conference_Titel :
Circuits and Systems, 1995. ISCAS '95., 1995 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2570-2
DOI :
10.1109/ISCAS.1995.521510
