DocumentCode
783420
Title
Very low-noise, high-accuracy programmable voltage reference
Author
Pace, C. ; Ciofi, C. ; Crupi, F.
Author_Institution
Dipt. di Elettronica, Informatica e Sistemistica, INFM, Rende, Italy
Volume
52
Issue
4
fYear
2003
Firstpage
1251
Lastpage
1254
Abstract
We have designed and tested a very low-noise, high-accuracy programmable voltage reference that is intended as an alternative to batteries for the realization of automated low-frequency noise measurement systems. The output voltage, which can be set via a built-in RS232 interface, ranges from 0 to 5 V with a resolution and long-term stability of ±250 μV. The power spectral density of the output voltage fluctuations is less than 2·10-16 V2/Hz at 100 mHz and remains below 10-17 V2/Hz above 1 Hz.
Keywords
automatic testing; electric noise measurement; programmable circuits; reference circuits; 0 to 5 V; 100 mHz to 1 Hz; RS232 interface; automated low-frequency noise measurement system; low-noise instrumentation; power spectral density; programmable voltage reference; voltage fluctuations; Background noise; Battery charge measurement; Electromagnetic interference; Fluctuations; Instruments; Low-frequency noise; Noise measurement; Noise reduction; Testing; Voltage;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.2003.816823
Filename
1232376
Link To Document