Very low noise, high accuracy, programmable voltage reference

Author

Pace, C. ; Ciofi, C. ; Crupi, F. ; Giacobbe, A.

Author_Institution

INFM, Messina, Italy

Volume

1

fYear

2002

fDate

6/24/1905 12:00:00 AM

Firstpage

635

Abstract

The design and testing of a very low noise, high accuracy, programmable voltage reference is presented in this paper. This piece of instrumentation, which can be controlled by a personal computer via the built-in RS232 interface, is intended as an alternative to batteries in the realization of automated low frequency noise measurement systems. The supply voltage ranges from 0 to 5 V with a resolution and long-term stability better than ±250 μV. The power spectral density of the output voltage fluctuations is less than 10^-16 V²/Hz at 100 mHz and remains below 10^-17 V²/Hz above 1 Hz.

Keywords

circuit noise; circuit stability; computerised instrumentation; electric noise measurement; programmable circuits; reference circuits; 0 to 5 V; automated LF noise measurement systems; built-in RS232 interface; high accuracy voltage reference; long-term stability; low frequency noise measurement systems; personal computer control; programmable voltage reference; spectral analysis; very low noise voltage reference; Battery charge measurement; Control systems; Frequency measurement; Instruments; Low-frequency noise; Microcomputers; Noise measurement; Stability; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 2002. IMTC/2002. Proceedings of the 19th IEEE

ISSN

1091-5281

Print_ISBN

0-7803-7218-2

Type

conf

DOI

10.1109/IMTC.2002.1006916

Filename

1006916