MS5540C是一个SMD模块，包括一个压力传感器和一个模数转换电路，输出是16位的资料字。此外，该模块包含6个可读取的系数用于高精度的软件补偿。MS5540C具有自动电源开关（ON/OFF）、低功耗、低电压的特点，一个3线的接口完成与单片机的所有通信。相比MS5534A的气压范围，MS5540C能量度10mbar以下的大气压力。MS5540C与MS5534C及较早版本的MS5540是完全程序兼容的。与MS553C5比较下，MS5541C所有脚位的静电敏感性已改善至4kV，而它的外在尺寸与MS54xx系列兼容的。密封的 O型环 `内填满白色凝胶作防水保护，足够提100米以内的防水表保护。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