DocumentCode :
1420299
Title :
Monolithic JFET preamplifier with nonresistive charge reset
Author :
Manfredi, P.F. ; Re, V. ; Speziali, V.
Author_Institution :
Dipartimento di Elettronica, Pavia Univ., Italy
Volume :
45
Issue :
4
fYear :
1998
fDate :
8/1/1998 12:00:00 AM
Firstpage :
2257
Lastpage :
2260
Abstract :
This paper shows how a monolithic JFET preamplifier for spectrometry applications can be upgraded by introducing a nonresistive reset. It was found that the charge reset which employs a forward-biased gate-to-source junction of the input JFET suits this case best. The introduction of the nonresistive feedback is important in two respects. First, it puts into better evidence the intrinsic noise limitations of the monolithic preamplifier. Second, it opens up a new perspective in the design of monolithic preamplifiers for very high-resolution X-ray applications
Keywords :
X-ray spectroscopy; junction gate field effect transistors; monolithic integrated circuits; nuclear electronics; semiconductor device noise; X ray spectrometry; forward-biased gate-to-source junction; intrinsic noise; monolithic JFET preamplifier; nonresistive charge reset; nonresistive feedback; Capacitance; Detectors; Feedback; Noise reduction; Preamplifiers; Radio frequency; Resistors; Signal to noise ratio; Spectroscopy; X-ray applications;
fLanguage :
English
Journal_Title :
Nuclear Science, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9499
Type :
jour
DOI :
10.1109/23.709654
Filename :
709654
Link To Document :
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