Calibration Setup for Ultralow-Current Transresistance Amplifiers

被引：5
|
作者：
Finardi, Ilaria [1 ,2 ]
Callegaro, Luca [1 ]
机构：
[1] Ist Nazl Ric Metrol, I-10135 Turin, Italy
[2] Politecn Torino, I-10129 Turin, Italy
来源：
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2018年 / 67卷 / 11期
关键词：
Amplifiers; calibration; capacitance; current measurement; gain measurement; metrology; PRECISION CURRENT SOURCE; NOISE CURRENT-AMPLIFIER; DC CURRENTS;
D O I：
10.1109/TIM.2018.2829318
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 a setup for the calibration of the transresistance gain of low-current amplifiers, based on the capacitance-charging method. The calibration can be performed in the current range of typical interest for electron-counting experiments. The setup implementation is simple and rugged, and is suitable to be embedded in larger experiments, where the amplifier is employed. The calibrated transresistance is traceable to the units of capacitance and time. Two different calibration modes were tested: with dc current (obtained using a custom-made piecewise linear ramp generator) and with low-frequency sinewave current (using a commercial generator). The relative base accuracy of the implementation is in the 10(-5) range.
引用
收藏
页码：2676 / 2683
页数：8
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