Author/Authors :
Li، نويسنده , , Y. and Degerli، نويسنده , , Y. and Besançon، نويسنده , , M. and Besson، نويسنده , , I. H. A. W. Claus، نويسنده , , G. and Deptuch، نويسنده , , G. and Dulinski، نويسنده , , W. and Fourches، نويسنده , , N. and Goffe، نويسنده , , M. and Himmi، نويسنده , , A. and Lutz، نويسنده , , P. and Orsini، نويسنده , , F. and Szelezniak، نويسنده , , M.، نويسنده ,
Abstract :
Fast Monolithic Active Pixel Sensors (MAPS) are now being studied for the high-spatial resolution and high readout speed vertex detector which will be required for the future International Linear Collider (ILC). A 32×128 pixels prototype chip has been developed on the 0.25 μm CMOS TSMC digital process. Combined with in-pixel amplification, in-pixel correlated double sampling (CDS) operation is realized. An auto-zero discriminator is implemented at the end of each column. The power consumption of each column is about 430 μW (pixel+discriminator). The chip is optimized to operate with a readout speed of 20 μs/frame. Beam tests with high energy electrons show that detection efficiency is around 98%.
Keywords :
ADC , Vertex detector , iLC , CDS , Particle tracking , Discriminator , maps