标签: ltc2991

在用于系统监视器应用中，LTC2991用来测量大型电路板上的电源电压、电流和温度。当用价值一美分的MMBT3904晶体管作为温度传感器时，该器件还能提供±1°C的准确度，从而使其非常适用于很多仪表应用。温度是测量最多的物理参数，而且传感器选择随着准确度要求、耐用性、成本以及与所测量介质兼容性的不同而不同。……

TheLTC®2990/LTC2991aretemperature,voltageandcurrentmonitorsfor3Vto5.5Vsystemswhichintegratea14-bitADC,10ppm/°CreferenceandI2Cinterfacetoprovidesub-millivoltvoltageresolutionand1%currentmeasurement,aswellas±1°Caccuracyinternallyandupto±0.5°Caccuracyremotelywhenmakingtemperaturemeasurements.Unliketraditionaltemperaturemonitorsthatrelyonsingle-endedinputstomakemeasurements,theLTC2990/LTC2991useuptoeightsingle-endedinputstoconvenientlymeasuremultipleparameterssimultaneously.TemperatureMonitorsMeasures:ExternalTemperatureInternalTemperatureSingle-EndedVoltageDifferentialVoltage……