An Amplifier for Bolometric Detectors

被引：2
|
作者：
Arnaboldi, Claudio [1 ,2 ]
Giachero, Andrea [1 ,2 ]
Gotti, Claudio [3 ,4 ]
Maino, Matteo [1 ,2 ]
Pessina, Gianluigi [1 ,2 ]
机构：
[1] Univ Milano Bicocca, Sez Milano Bicocca, Ist Nazl Fis Nucl, I-20126 Milan, Italy
[2] Univ Milano Bicocca, Dipartimento Fis, I-20126 Milan, Italy
[3] Univ Firenze, Ist Nazl Fis Nucl, Sez Milano Bicocca, I-50121 Florence, Italy
[4] Univ Firenze, Dept Elect & TLC, I-50121 Florence, Italy
来源：
IEEE TRANSACTIONS ON NUCLEAR SCIENCE | 2011年 / 58卷 / 06期
关键词：
Analog circuit; 1/f noise; signal-to-noise ratio; thermal management of electronics; FRONT-END; NEUTRINO MASS; LOW-FREQUENCY; LOW-NOISE; TRANSISTORS;
D O I：
10.1109/TNS.2011.2171367
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：
We describe the last stage of a readout for bolometric detectors consisting of a source follower Si-JFET held at its optimum temperature of operation and a room temperature second stage. Stringent limits on both white and low frequency noise are required. We present our design solution for the second-stage differential amplifier operated at room-temperature. A special circuit has been employed to achieve very low series noise. Possible noise sources from the power supply have been addressed and rejected. The amplifier features a white noise floor of about 400 pV / root Hz and low-frequency noise of 850 pV / root Hz at 1 Hz.
引用
收藏
页码：3204 / 3211
页数：8
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