Two ICs Convert 4-20mA Signal to 0-5V Output

Abstract:Thisdesignideadescribesasimplecircuitthatconvertsa4-20mAsignaltoa0Vto5Vanalogvoltageidealforconversiontodigitalwithananalog-to-digitalconverter(ADC).The4mAlevelfromthetransducerproducesa0Voutputandthe20mAlevelproducesa5Voutput.Acurrentsenseamplifiergeneratesthisanalog0Vto5Voutput.Inaddition,thecircuitprovidesacomparatoroutputthatcanbeusedtodetectazerocurrentcondition.Maxim>AppNotes>A/DandD/AConversion/SamplingCircuitsAmplifierandComparatorCircuitsInterfaceCircuitsSensorsKeywords:4-20mAtransducers,4-20mAtranslator,4to20mAconverter,A/D,ADC,atod,analogdigital,analogtodigitalconverters,Nov27,2001convertorAPPLICATIONNOTE823TwoICsConvert4-20mASignalto0-5VOutputAbstract:Thisdesignideadescribesasimplecircuitthatconvertsa4-20mAsignaltoa0Vto5Vanalogvoltageidealforconversiontodigitalwithananalog-to-digitalconverter(ADC).The4mAlevelfromthetransducerproducesa0Voutputandthe20mAlevelproducesa5Voutput.Acurrentsenseamplifiergeneratesthisanalog0Vto5Voutput.Inaddition,thecircuitprovidesacomparatoroutputthatcanbeused