Configurable low noise readout front-end for gaseous detectors in 130nm CMOS technology

被引：0
|
作者：
Hernandez, Hugo [1 ]
Van Noije, Wilhelmus [1 ]
Munhoz, Marcelo [2 ]
机构：
[1] Univ Sao Paulo, Polytech Sch, Dept Elect Engn, BR-05508 Sao Paulo, Brazil
[2] Univ Sao Paulo, Inst Phys, BR-05508 Sao Paulo, Brazil
来源：
2015 IEEE 6TH LATIN AMERICAN SYMPOSIUM ON CIRCUITS & SYSTEMS (LASCAS) | 2015年
关键词：
D O I：
暂无
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：
In this work a low noise readout front-end for gaseous detectors with configurable sensitivity and peaking time is presented. The proposed topology supports positive/negative input charge polarity and can be used for TPC (Time Projection Chamber) readout systems with Multi-Wire Proportional Chambers (MWPC) or Gas Electron Multiplier (GEM) technologies. The front-end can be configured for 80ns, 160ns and 300ns of peaking time and 4mV/fC, 20mV/fC and 30mV/fC of sensitivity via transmission gates. The detector capacitance range where the circuit operates are 12pF to 25pF for 20mV/fC and 30mV/fC, and 30pF to 110pF for 4mV/fC of sensitivity. A chip with 3 front-end channels was designed with the proposed front-end topology in 130nm TSMC CMOS technology. The fabricated front-end was designed for minimum Equivalent Noise Charge (ENC) of 428e@160ns, cross-talk lower than 0.2%, linearity lower than 1% and supply voltage of 1.2V. Experimental results of sensitivity, peaking time and power consumption are close to the simulated values.
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页数：4
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