Title :
Low noise design and measurement of 32-channel X-ray ROIC
Author :
Dan Liu ; Chuan Jin
Author_Institution :
First Res. Inst. of Minist. of Public Security, Beijing, China
Abstract :
The design and measurement of low noise 32-channel X-ray readout integrated circuit (ROIC) are proposed in this paper. This ROIC has 32 analog channels collecting weak current from detectors, then transfers them to voltage and output in differential mode. This ROIC adapts low noise preamplifier and S/H circuit. Measure results show a dynamic range of larger than 10000:1 with 6pF integration capacitor. This ROIC has a very close noise performance with a famous commercial IC.
Keywords :
X-rays; low noise amplifiers; readout electronics; sample and hold circuits; S/H circuit; X-ray ROIC; X-ray readout integrated circuit; analog channels; capacitance 6 pF; differential mode; low noise design; low noise preamplifier; Capacitors; Current measurement; Integrated circuits; Noise; Noise measurement; Semiconductor device measurement; X-ray imaging;
Conference_Titel :
ASIC (ASICON), 2013 IEEE 10th International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-6415-7
DOI :
10.1109/ASICON.2013.6812032
