Title :
A mixed signal CMOS readout chain for imaging spectroscopic pixel X-ray detectors
Author :
Kapnistis, Charalampos ; Misiakos, Konstantinos ; Haralabidis, Nikos
Author_Institution :
Inst. of Microelectron., NCSR Demokritos, Athens, Greece
Abstract :
A CMOS readout chain for pixel X-ray detectors has been designed and prototyped in 0.8 μm technology. The system is capable of simultaneous imaging and spectroscopic functions. Each pixel circuitry incorporates both analog and digital features to perform the dual tasks. It exhibits excellent linearity in the range of 0-1 fC with a gain of 514 mV/fC. With a silicon area of 0.05 mm2 and a power consumption of 1.8 mW per pixel at a 3.3 V it is a promising solution for biomedical applications. The paper describes the system architecture and reports simulation results obtained after back-annotation from the physical design
Keywords :
CMOS integrated circuits; X-ray detection; X-ray imaging; X-ray spectroscopy; biomedical electronics; biomedical imaging; mixed analogue-digital integrated circuits; readout electronics; 1.8 mW; 3.3 V; biomedical applications; imaging spectroscopic X-ray detectors; mixed signal CMOS readout chain; pixel X-ray detectors; pixel circuitry; CMOS technology; Circuits; Energy consumption; Linearity; Optical imaging; Pixel; Prototypes; Silicon; Spectroscopy; X-ray detectors;
Conference_Titel :
Electronics, Circuits and Systems, 1998 IEEE International Conference on
Conference_Location :
Lisboa
Print_ISBN :
0-7803-5008-1
DOI :
10.1109/ICECS.1998.813350
