A Simple 1-Wire® DAC
Abstract:Connectingtheoutputsofa1-Wireaddressableswitch(DS2408)toaresistornetworkallowsthe1-WireinterfacetocontrolasimpleDAC.ThisideaisillustratedbythepresentationofanLED-brightnesscontroller.Maxim>AppNotes>1-WireDevicesKeywords:1-Wireswitches,1-Wireinterface,currentmirrors,D/Aconverters,DACs,resistornetworksOct19,2009APPLICATIONNOTE4627ASimple1-WireDACBy:BernhardLinkeAbstract:Connectingtheoutputsofa1-Wireaddressableswitch(DS2408)toaresistornetworkallowsthe1-WireinterfacetocontrolasimpleDAC.ThisideaisillustratedbythepresentationofanLED-brightnesscontroller.AsimilarversionofthisarticlewaspublishedonSeptember29,2009onthePlanetAnalogwebsite.Amongdevicesavailablewitha1-Wireinterface,thebestknownarememories,temperaturesensors,batterymonitors,andaddressableswitches.One-WireADCsarealsoavailable,butno1-WireDACs.Youcan,however,buildasimple1-WireDACusingaddressa