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《TI DAC856x双路16位低功耗电压输出DAC解决方案》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、精品文档就在这里-------------各类专业好文档,值得你下载,教育,管理,论文,制度,方案手册,应有尽有----------------------------------------------------------------------------------------------------------------------------------------------------------TIDAC856x双路16位低功耗电压输出DAC解决方案关键字:工业控制,数据采集系统,手提仪表TI公司的DAC856x,DAC816x和DAC756x系列分别是低功耗电压输出
2、双路16位,14位和12位数模转换器(DAC),集成了2.5-V,4-ppm/°C基准电压,满刻度输出电压范围2.5V或5V,主要用于手提仪表,双极输出,PLC模拟输出模块,闭环伺服控制,压控振荡器,数据采集系统和可编增益和失调调整.本文介绍了DAC856x主要特性,方框图,应用电路以及DAC7562EVM评估板主要特性,电路图和材料清单.TheDAC856x,DAC816x,andDAC756xarelow-power,voltage-output,dual-channel,16-,14-,and12-bitdigital-to-analogconverters(DACs),respec
3、tively.Thesedevicesincludea2.5-V,4-ppm/℃internalreference,givingafull-scaleoutputvoltagerangeof2.5Vor5 V.Theinternalreferencehasaninitialaccuracyof±5 mVandcansourceorsinkupto20mAattheVREFIN/VREFOUT pin.Thesedevicesaremonotonic,providingexcellentlinearityandminimizingundesiredcode-to-codetransientv
4、oltages(glitch).Theyuseaversatilethree-wireserialinterfacethatoperatesatclockratesupto50MHz.TheinterfaceiscompatiblewithstandardSPI,QSPI,Microwire,anddigitalsignalprocessor(DSP)interfaces.DAC856x主要特性:RelativeAccuracy: DAC856x(16-Bit):4LSBINL DAC816x(14-Bit):1LSBINL DAC756x(12-Bit):0.3LSBINLGlitchE
5、nergy:0.1nV-s BidirectionalReference:Inputor2.5-VOutput OutputDisabledbyDefault ±5-mVInitialAccuracy(Max) ---------------------------------------------------------精品文档---------------------------------------------------------------------精品文档就在这里-------------各类专业好文档,值得你下载,教育,管理,论文,制度,方案手册,应有尽有------
6、----------------------------------------------------------------------------------------------------------------------------------------------------4-ppm/℃TemperatureDrift(Typ) 10-ppm/℃TemperatureDrift(Max) 20-mASink/SourceCapabilityPower-OnResettoZeroScaleorMid-Scale Low-Power:4mW(Typ,5-VAVDD,Inc
7、ludingInternalReferenceCurrent) WidePower-SupplyRange:2.7Vto5.5V 50-MHzSPIWithSchmitt-TriggeredInputs LDACandCLRFunctions OutputBufferWithRail-to-RailOperation Packages:QFN-10(3x3mm),MSOP-10 TemperatureRange:–40℃