摘要:DS3904包含三个数字控制的非易失性(NV)可变电阻器。它的每个可变电阻器置于高阻抗状态的能力。使用此功能,它有可能创造一个2线DIP开关控制非易失数字。本应用笔记将解释要创建一个数字化的DIP开关使用的DS3904电阻设置,以及如何创建NV输出,可用于配置数字系统。
Maxim>AppNotes>DIGITALPOTENTIOMETERSGENERALENGINEERINGTOPICSKeywords:NV,systemconfiguration,digitalpotentiometer,digipot,digitalpots,NVvariableresistors,dipMar05,2003switchAPPLICATIONNOTE2382-WireControlledDigitalDIPSwitchUsingtheDS3904Abstract:TheDS3904containsthreedigitallycontrollednonvolatile(NV)variableresistors.Ithasthecapabilityofplacingeachofthevariableresistorsintoahigh-impedancestate.Usingthisfeature,itispossibletocreatea2-wirecontrolledNVdigitalDIPswitch.ThisapplicationnotewillexplaintheresistorsettingsnecessarytocreateadigitalDIPswitchusingtheDS3904,andhowtocreateNVoutputsthatcanbeusedtoconfiguredigitalsystems.ResistorRegisterSettingsToplaceoneo
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