pcf8591t—adda转换器

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1、INTEGRATEDCIRCUITSDATASHEETPCF85918-bitA/DandD/AconverterProductspecification2003Jan27Supersedesdataof2001Dec13PhilipsSemiconductorsProductspecification8-bitA/DandD/AconverterPCF8591CONTENTS1FEATURES2APPLICATIONS3GENERALDESCRIPTION4ORDERINGINFORMATION5B

2、LOCKDIAGRAM6PINNING7FUNCTIONALDESCRIPTION7.1Addressing7.2Controlbyte7.3D/Aconversion7.4A/Dconversion7.5Referencevoltage7.6Oscillator8CHARACTERISTICSOFTHEI2C-BUS8.1Bittransfer8.2Startandstopconditions8.3Systemconfiguration8.4Acknowledge8.5I2C-busprotoc

3、ol9LIMITINGVALUES10HANDLING11DCCHARACTERISTICS12D/ACHARACTERISTICS13A/DCHARACTERISTICS14ACCHARACTERISTICS15APPLICATIONINFORMATION16PACKAGEOUTLINES17SOLDERING17.1Introductiontosolderingthrough-holemountpackages17.2Solderingbydippingorbysolderwave17.3Ma

4、nualsoldering17.4Suitabilityofthrough-holemountICpackagesfordippingandwavesolderingmethods18DATASHEETSTATUS19DEFINITIONS20DISCLAIMERS21PURCHASEOFPHILIPSI2CCOMPONENTS2003Jan272PhilipsSemiconductorsProductspecification8-bitA/DandD/AconverterPCF85911FEATU

5、RES·Singlepowersupply·Operatingsupplyvoltage2.5Vto6V·Lowstandbycurrent·Serialinput/outputviaI2C-bus·Addressby3hardwareaddresspins3GENERALDESCRIPTION·SamplingrategivenbyI2C-busspeedThePCF8591isasingle-chip,single-supplylowpower·4analoginputsprogrammabl

6、eassingle-endedor8-bitCMOSdataacquisitiondevicewithfouranalogdifferentialinputsinputs,oneanalogoutputandaserialI2C-businterface.·Auto-incrementedchannelselectionThreeaddresspinsA0,A1andA2areusedfor·AnalogvoltagerangefromVSStoVDDprogrammingthehardwarea

7、ddress,allowingtheuseofuptoeightdevicesconnectedtotheI2C-buswithout·On-chiptrackandholdcircuitadditionalhardware.Address,controlanddatatoandfrom·8-bitsuccessiveapproximationA/Dconversionthedevicearetransferredseriallyviathetwo-line·MultiplyingDACwitho

8、neanalogoutput.bidirectionalI2C-bus.Thefunctionsofthedeviceincludeanaloginput2APPLICATIONSmultiplexing,on-chiptrackandholdfunction,8-bitanalog-to-digitalconversionandan8-bitdigital-to-analog·Closedloopcontrolsystemsconversion.Themaximumconvers