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《Electronic Science and Technology》 2011-01
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Design of an I/F Conversion Circuit

Liu Shukai(Department of Automation Technology,Changzhou Institute of Engineering Technology,Changzhou 213164,China)  
This paper introduces the design of an I/F conversion circuit with a single supply.This circuit comprises two OPA2335AID,a TS5A23166 whit VHB comparator,a CMOS Switch,etc.It can convert a 4-20 mA current signal or 1-5 V voltage signal into a 10~50 kHz square wave.With a 3-5 V single supply used,the linearity of output can reach up to +0.1% FS.This circuit has a simple structure,stable output and good linearity.
【CateGory Index】: TN792
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