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

页码：3204 / 3211

页数：8

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