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数字电位器-IIC-MAX5432VIP免费

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GeneralDescriptionTheMAX5432–MAX5435nonvolatile,linear-taper,digi-talpotentiometersperformthefunctionofamechanicalpotentiometer,butreplacethemechanicswithasimple2-wireserialinterface.Eachdeviceperformsthesamefunctionasadiscretepotentiometeroravariableresis-torandhas32tappoints.TheMAX5432–MAX5435featureaninternal,nonvolatile,electricallyerasableprogrammableread-onlymemory(EEPROM)thatreturnsthewipertoitspreviouslystoredpositionatpower-up.Thefast-modeI2C-compatibleserialinterfaceallowscommunicationatdataratesupto400kbps,minimizingboardspaceandreducinginter-connectioncomplexity.Eachdeviceisavailablewithoneoffourfactory-presetI2Caddresses(seetheSelectorGuide).UsetheMAX5432–MAX5435inapplicationsrequiringdigitallycontrolledresistors.Tworesistancevaluesareavailable(50kΩand100kΩ)inavoltage-dividerorvari-ableresistorconfiguration.Thenominalresistortemper-aturecoefficientis35ppm/°Cend-to-end,andonly5ppm/°Cratiometric,makingthedevicesidealforapplicationsrequiringalow-temperature-coefficientvariableresistorsuchaslow-drift,programmable-gainamplifiercircuitconfigurations.TheMAX5432/MAX5433areavailableina3mmx3mm8-pinTDFNpackageandtheMAX5434/MAX5435areavail-ableina6-pinthinSOT23package.TheMAX5432–MAX5435arespecifiedovertheextended(-40°Cto+85°C)temperaturerange.ApplicationsMechanicalPotentiometerReplacementLow-DriftProgrammable-GainAmplifiersVolumeControlLiquid-CrystalDisplay(LCD)ScreenAdjustmentFeatures♦Tiny3mmx3mm8-PinTDFNand6-PinThinSOT23Packages♦Power-OnRecallofWiperPositionfromNonvolatileMemory♦35ppm/°CEnd-to-EndResistanceTemperatureCoefficient♦5ppm/°CRatiometricTemperatureCoefficient♦50kΩ/100kΩResistorValues♦Fast400kbpsI2C-CompatibleSerialInterface♦500nA(typ)StaticSupplyCurrent♦+2.7Vto+5.25VSingle-SupplyOperation♦32TapPositions♦±0.15LSBINL(typ),±0.15LSBDNL(typ)MAX5432–MAX543532-Tap,Nonvolatile,I2C,Linear,DigitalPotentiometers________________________________________________________________MaximIntegratedProducts1OrderingInformation19-3511;Rev0;11/04Forpricing,delivery,andorderinginformation,pleasecontactMaxim/DallasDirect!at1-888-629-4642,orvisitMaxim’swebsiteatwww.maxim-ic.com.PARTTEMPRANGEPIN-PACKAGEMAX5432LETA-40°Cto+85°C8TDFN-EP**MAX5432META*-40°Cto+85°C8TDFN-EP**MAX5433LETA-40°Cto+85°C8TDFN-EP**MAX5433META*-40°Cto+85°C8TDFN-EP**MAX5434LEZT-T-40°Cto+85°C6ThinSOT23-6MAX5434MEZT-T*-40°Cto+85°C6ThinSOT23-6MAX5434NEZT-T*-40°Cto+85°C6ThinSOT23-6MAX5434PEZT-T*-40°Cto+85°C6ThinSOT23-6MAX5435LEZT-T-40°Cto+85°C6ThinSOT23-6MAX5435MEZT-T*-40°Cto+85°C6ThinSOT23-6MAX5435NEZT-T*-40°Cto+85°C6ThinSOT23-6MAX5435PEZT-T*-40°Cto+85°C6ThinSOT23-6PurchaseofI2CcomponentsfromMaximIntegratedProducts,Inc.,oroneofitssublicensedAssociatedCompanies,conveysalicenseunderthePhilipsI2CPatentRightstousethesecom-ponentsinanI2Csystem,providedthatthesystemconformstotheI2CStandardSpecificationasdefinedbyPhilips.SelectorGuideappearsatendofdatasheet.*Futureproduct—contactfactoryforavailability.**EP=Exposedpad.TDFNTOPVIEWGNDSDASCL16L5WVDDSOT23234MAX5434MAX5435A0VDDSCL1287WLSDAGNDH3465MAX5432MAX5433PinConfigurationsMAX5432–MAX543532-Tap,Nonvolatile,I2C,Linear,DigitalPotentiometers2_______________________________________________________________________________________ABSOLUTEMAXIMUMRATINGSStressesbeyondthoselistedunder“AbsoluteMaximumRatings”maycausepermanentdamaget...

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数字电位器-IIC-MAX5432

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