A Low Power Column-level High SpeedAuto-zeroed Comparator for CMOS Active PixelSensor Based Vertex Detector

LI Yan; Yavuz Degerli; JI Zhen

LI Yan, Yavuz Degerli, JI Zhen. A Low Power Column-level High SpeedAuto-zeroed Comparator for CMOS Active PixelSensor Based Vertex Detector[J]. Chinese Journal of Electronics, 2010, 19(1): 53-56.

Citation:

LI Yan, Yavuz Degerli, JI Zhen. A Low Power Column-level High SpeedAuto-zeroed Comparator for CMOS Active PixelSensor Based Vertex Detector[J]. Chinese Journal of Electronics, 2010, 19(1): 53-56.

Citation:

LI Yan, Yavuz Degerli, JI Zhen. A Low Power Column-level High SpeedAuto-zeroed Comparator for CMOS Active PixelSensor Based Vertex Detector[J]. Chinese Journal of Electronics, 2010, 19(1): 53-56.

A Low Power Column-level High SpeedAuto-zeroed Comparator for CMOS Active PixelSensor Based Vertex Detector

Graphical Abstract

Graphical Abstract

Abstract

Abstract

CMOS active pixel sensors have become
strong candidates for pixel detectors used in high energy
physical experiments. Using standard CMOS fabrication
process, full data processing circuits can be integrated on
the same substrate with sensors and on-chip data process-
ing is achievable. For this purpose, a column level high
speed low power auto-zeroed comparator is developed.
Tested at 100MHz, a resolution better than 0.5mV was
obtained and its output residual o®set is only 0.15mVrms.
The dimension of the comparator is 25¹m£300¹m and its
power dissipation is about 220¹W.