如何解释DS1854 ， DS1857 ， DS1858温度和电压读数

摘要：环境温度，监视VCC时，DS1854，DS1857和DS1858和外部模拟输入。本应用笔记介绍如何解释在主设备SRAM中存储的值，并将其转化成温度和电压。2的补码转换的审查也包括在内。

Maxim>AppNotes>DIGITALPOTENTIOMETERSFIBER-OPTICCIRCUITSTEMPERATURESENSORSandTHERMALMANAGEMENTKeywords:DS1854,DS1857,DS1858,digitalpot,digitalpotentiometer,digipot,potentiometersDec10,2002APPLICATIONNOTE228HowtoInterpretDS1854,DS1857,andDS1858TemperatureandVoltageReadingsAbstract:TheDS1854,DS1857,andDS1858monitorVCC,ambienttemperature,andexternalanaloginputs.ThisapplicationnoteexplainshowtointerpretthevaluesstoredintheMainDeviceSRAMandtranslatethemintotemperatureandvoltages.Areviewof2'scomplementconversionisalsocovered.TranslatingTemperaturefromBinarytoDecimalTheprocedureforconvertingtemperaturevaluesfortheDS1854/57/58beginswithreadingthevaluesstoredinbytes60h(MSBo