The use of HEMTs in multiplexing large arrays of high impedance LTDs

被引：3

作者：

Yates, SJC

Benoit, A

Jin, Y

Camus, P

Cavanna, A

Durand, T

Etienne, B

Gennser, U

Grémion, E

Hoffmann, C

Leclercq, S

Ulysse, C

机构：

[1] CNRS, CRTBT, F-38042 Grenoble 9, France

[2] CNRS, LPN, F-91461 Marcoussis, France

[3] Univ Grenoble 1, Grenoble, France

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2006年 / 559卷 / 02期

关键词：

LTD; low temperature electronics; arrays of detectors; readout electronics;

D O I：

10.1016/j.nima.2005.12.151

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The use of a multiplexing system in close proximity to the detectors simplifies the electronics associated with large arrays of Low Temperature Detectors (LTDs). Here, we report the demonstration of an array of Quantum-Point-Con tact High-Electron-MobilityTransistors (QPC-HEMTs) down to 100mK used to time multiplex the signal from 8 simulated high impedance LTDs (similar to 10 M Omega) to an individual amplifier. Capacitors in parallel with the individual LTDs integrate the signal between measurements so giving a quasi-DC measurement of the LTDs. With the high impedance of the LTD this acts as a filter which counter acts the aliasing of the Johnson noise of the LTD associated with the time-multiplexing technique. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：829 / 831

页数：3

共 2 条

[1] Application of HEMT for multiplexing large arrays of high impedance LTDs [J].