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

Volume

1

fYear

1998

fDate

1998

Firstpage

405

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Circuits and Systems, 1998 IEEE International Conference on

Conference_Location

Lisboa

Print_ISBN

0-7803-5008-1

Type

conf

DOI

10.1109/ICECS.1998.813350

Filename

813350