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Publication Citation: Optically Isolated Current to Voltage Converter in an Electron Optics System

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Author(s): Alan H. Band; John Unguris;
Title: Optically Isolated Current to Voltage Converter in an Electron Optics System
Published: January 01, 1997
Abstract: A simple, inexpensive, optically isolated current-to-voltage converter circuit has been developed for the measurement of bipolar currents in the range of 10 pA to 1 %A on the biased elements of an electron optics system at voltages up to 3.5 kV. The design takes advantage of low-leakage, low-power CMOS operational amplifiers as well as linear optocouplers to create a low-noise battery-powered front end with an expected battery life of 3 years using a single 9 V lithium battery.
Citation: Review of Scientific Instruments
Volume: 68
Issue: 1
Pages: pp. 250 - 251
Research Areas: Instrumentation
PDF version: PDF Document Click here to retrieve PDF version of paper (33KB)