Design on Front-end Readout ASIC with Variable Gain and Wide Dynamic Range for 3D Si PIN Array Thermal Neutron Detector; [基于3D Si PIN阵列热中子探测器的变增益宽动态前端读出电子学设计]

被引：0

作者：

Han N. ^{[1
]}

Li L. ^{[1
]}

Li X. ^{[2
]}

Liu S. ^{[1
]}

Ma Y. ^{[1
]}

Xiong Y. ^{[1
]}

Li B. ^{[1
]}

Zhang G. ^{[3
]}

Fiorini C.E. ^{[4
]}

Chen W. ^{[5
]}

机构：

[1] School of Energy and Power Eneineering, Xi'an Jiaotong University, Xi'an

[2] School of Information Technology, Hebei University of Economics and Business, Shijiazhuang

[3] School of Microelectronics, Xi'an Jiaotong University, Xi'an

[4] Department of Electronic Information and Bioengineering, Politecnico di Milano, Milan

[5] Northwest Institute of Nuclear Technology, Xi'an

来源：

Liu, Shuhuan | 2021年 / Atomic Energy Press卷 / 55期

基金：

中国国家自然科学基金;

关键词：

Charge sensitive preamplifier; Front-end readout circuit; Wide dynamic range;

D O I：

10.7538/yzk.2021.youxian.0565

中图分类号：

学科分类号：

摘要：

The front-end readout ASIC based on Si CMOS technology is primarily designed according to the output signal characteristics of the 3D Si PIN array thermal neutron detector. The key circuit modules of the designed readout ASIC include the charge sensitive amplifier (CSA), the analog switch design, an automatic gain control module (AGC) with three-level charge sensitivity automatic switching, the correlation dual sampling (CDS) and reference current source circuit. The simulation results show that the input dynamic range of the front-end circuit is 10 fC-8.0 pC. The three gain coefficients of the designed ASIC according to the thermal neutron detector output signal characteristics are set as 1.9 V/pC, 0.39 V/pC and 94 mV/pC, respectively. The integral nonlinearity of the designed ASIC is less than 1%. The single channel static power consumption is about 5.36 mW. The equivalent noise charge at zero input detector capacitance is 241.6e-. The counting rate can arrive to the level of 1 MHz. © 2021, Editorial Board of Atomic Energy Science and Technology. All right reserved.

引用

页码：2237 / 2250

页数：13