MS5540C是一個SMD模塊，包括一個壓力傳感器和一個模數(shù)轉(zhuǎn)換電路，輸出是16位的資料字。此外，該模塊包含6個可讀取的系數(shù)用于高精度的軟件補償。MS5540C具有自動電源開關(guān)（ON/OFF）、低功耗、低電壓的特點，一個3線的接口完成與單片機的所有通信。相比MS5534A的氣壓范圍，MS5540C能量度10mbar以下的大氣壓力。MS5540C與MS5534C及較早版本的MS5540是完全程序兼容的。與MS553C5比較下，MS5541C所有腳位的靜電敏感性已改善至4kV，而它的外在尺寸與MS54xx系列兼容的。密封的 O型環(huán) `內(nèi)填滿白色凝膠作防水保護，足夠提100米以內(nèi)的防水表保護。TheMS5540BisaSMD-hybriddeviceincludingaprecisionpiezoresistivepressuresensorandanADCInterfaceIC.ItisaminiatureversionoftheMS5534Bbarometer/altimetermoduleandprovidesa16Bitdatawordfromapressureandtemperaturedependentvoltage.MS5540Bisalowpower,lowvoltagedevicewithautomaticpowerdown(ON/OFF)switching.A3-wireinterfaceisusedforallcommunicationswithamicrocontroller.ComparedtoMS5534Athepressurerange(measurementdownto10mbar)hasbeenimproved.OtherimprovementsconcerntheESDsensitivity,currentconsumptionandconverteraccuracy.TheMS5540BisfullysoftwarecompatibletotheMS5534AandMS5534B.Inaddition,theMS5540BisfromitsouterdimensionscompatibletotheMS54XXseriesofpressuresensors.Thegelprotectionofthesensorprovidesawaterprotectionsufficientfor100mwaterproofwatcheswithoutanyadditionalprotection.Feature:-Integratedpressuresensor-Pressurerange10-1100mbar-Smallsize6.2x6.4mm-15BitADC-6coefficientsforasoftware-compensationstoredon-chip-3-wireserialinterface-1systemclockline(32.768kHz)-Temperaturerange-40..+85?C-Lowvoltage(2.2to3.6V)-Lowpower(Standbycurrent:0.1uA)-Pb-free RoHS-compatibleApplications:-Mobilealtimeter/barometersystems-Weathercontrolsystems-Adventureormulti-modewatches-GPSreceivers