THE DESIGN OF 1MCPS CMOS ANALOG FRONT-END CIRCUIT FOR RADIATION DETECTOR

被引：0
|
作者：
Zhu, Huabing [1 ,2 ]
Zhang, Yacong [2 ]
Liang, Jie [2 ]
Zhang, Luya [2 ]
Li, Xiaoliang [2 ]
Lu, Wengao [2 ]
Chen, Zhongjian [2 ]
机构：
[1] Peking Univ, Shenzhen Grad Sch, Sch Elect & Comp Engn, Shenzhen 518055, Peoples R China
[2] Peking Univ, Natl Key Lab Sci & Technol Micro Nano Fabricat, Dept Microelect, Beijing 100871, Peoples R China
来源：
2014 12TH IEEE INTERNATIONAL CONFERENCE ON SOLID-STATE AND INTEGRATED CIRCUIT TECHNOLOGY (ICSICT) | 2014年
关键词：
D O I：
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents a design of high counting rate analog front-end circuit for radiation detector in 0.18 mu m CMOS process. The front-end circuit consists of charge sensitive amplifier (CSA), CR-(RC)(n) Semi-Gaussian (S-G) filter (called Shaper) which consists of one CR differentiator stage and n order RC integrator stages, and baseline restorer structure (BLR). A 3-rd order filter is selected in order to achieve high counting rate. A new BLR structure is proposed to solve the baseline drift problem caused by process mismatch. The designed front-end circuit achieves at least 1 Mcps counting rate. Equivalent Noise Charge (ENC) of it is equal to 750e(-) for the detector capacitance C-det=5pF.
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页数：3
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