EXTREMELY LOW-NOISE AMPLIFIER FOR INTERFACING ACTIVE DEVICES TO INSTRUMENTS FOR SPECTRAL-ANALYSIS

被引：7

作者：

MANFREDI, PF ^{[1
]}

SPEZIALI, V ^{[1
]}

SVELTO, F ^{[1
]}

机构：

[1] INFN,SEZ MILANO,I-20133 MILAN,ITALY

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1994年 / 65卷 / 12期

关键词：

D O I：

10.1063/1.1145176

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An analog interface has been developed in order to perform very accurate noise spectral analysis with currently available instrumentation. It employs the device under test as a front-end element, whose input-referred noise voltage is amplified by a feedback loop which adds an extremely small noise contribution, followed by two cascaded low-noise amplifiers. The interface is suitable for spectral analysis in the 100 mHz-100 kHz frequency range. Its intrinsic noise contribution is estimated around 1 nV/√Hz at 100 mHz and 50 pV/√Hz at frequencies beyond 1 kHz. © 1994 American Institute of Physics.

引用

页码：3848 / 3852

页数：5

共 12 条

[1] PERSPECTIVES IN THE DESIGN OF TRANSFORMERLESS, LOW-NOISE FRONT-END ELECTRONICS FOR LARGE CAPACITANCE DETECTORS AND CALORIMETERS IN ELEMENTARY PARTICLE PHYSICS [J].