摘要:数字电位器的温度特性不同于传统的机械电位器。温度对电位的绝对性的影响,必须考虑到这些类型的设备的设计时,为数字电位器具有绝对性,顺序上的温度超过10%的幅度可能会有所不同。其他因素,尤其是“抽头”,这实际上是一个传输门的阻力,还必须考虑到这些部件的设计时。一个稳定的设计在不同的配置概述。Maxim>AppNotes>COMMUNICATIONSCIRCUITSDIGITALPOTENTIOMETERSFIBER-OPTICCIRCUITSKeywords:digitalpot,digitpot,epot,DS1845,DS1855,xicor,digitalpotemtiometersJun07,2002APPLICATIONNOTE207DS1845/DS1855TemperatureCoefficientAnalysisAbstract:Thetemperaturecharacteristicsofdigitalpotentiometersdifferfromthoseoftraditionalmechanicalpotentiometers.Theeffectsoftemperatureontheabsoluteresistanceofthepotentiometermustbetakenintoconsiderationwhendesigningwiththesetypesofdevicesasadigitalpotentiometerhasanabsoluteresistance,whichmightvaryonanorderofmagnitudeof10%overtemperature.Otherconsiderations,especiallytheresistanceofthe"wiper"whichisinactualityatransmissiongate,
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