Referenced Items are not available for this document.
The solid state DC current sources available on the market are not suitable for applications in low noise measurement systems because of the high level of low-frequency noise introduced in the measurement chain. The most important cause of low-frequency noise in such instruments is the solid state device used as a voltage reference (usually a Zener diode). This problem has been solved, in the instrument described in this paper, by using a new circuit topology in which the solid-state voltage reference has been substituted by a low-noise battery. The instrument, capable of supplying a current as high as 100 mA, is characterized by a low-frequency noise level some orders of magnitude lower than that of similar commercial instrumentation
Published in:
Instrumentation and Measurement, IEEE Transactions on
(Volume:47
,
Issue:
1
)
Date of Publication: Feb 1998
- Page(s):
- 78 - 81
- ISSN :
- 0018-9456
- INSPEC Accession Number:
- 6099435
- Digital Object Identifier :
- 10.1109/19.728794
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Feb 1998
- Sponsored by :
- IEEE Instrumentation and Measurement Society
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