Circuit Enables PC-Based Voltage Measurements

Abstract:Initssimplestform,thePCvoltmeterconsistsofa4-channel,10-bitA/Dconverter(IC2)withafewpassivecomponents,connectedtothePCprinterportviaa25-pinmaleD-typeconnector.Maxim>AppNotes>A/DandD/AConversion/SamplingCircuitsAmplifierandComparatorCircuitsKeywords:lowpoweredopamps,quadopamps,rail-to-railinputs,rail-to-railoutputs,rail-to-railopamps,opampApr10,2003APPLICATIONNOTE1988CircuitEnablesPC-BasedVoltageMeasurementsAbstract:Initssimplestform,thePCvoltmeterconsistsofa4-channel,10-bitA/Dconverter(IC2)withafewpassivecomponents,connectedtothePCprinterportviaa25-pinmaleD-typeconnector.Initssimplestform,thePCvoltmeterofFigure1consistsofsection"A"alone:a4-channel,10-bitA/Dconverter(IC2)withafewpassivecomponents,connectedtothePCprinterportviaa25-pinmaleD-typeconnector.Powerisderivedfrompins2and3,andthecir