LM35 LM35DZ Precision Centigrade Temperature Sensor TO-92

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The LM35 series are precision integrated-circuit temperaturesensors, whose output voltage is linearly proportional to theCelsius (Centigrade) temperature. The LM35 thus has anadvantage over linear temperature sensors calibrated in Kelvin, as the user is not required to subtract a largeconstant voltage from its output to obtain convenient Centi-grade scaling. The LM35 does not require any externalcalibration or trimming to provide typical accuracies of±14 Cat room temperature and±34 C over a full 55 to +150 Ctemperature range. Low cost is assured by trimming andcalibration at the wafer level. The LM35s low output imped-ance, linear output, and precise inherent calibration makeinterfacing to readout or control circuitry especially easy. Itcan be used with single power supplies, or with plus andminus supplies. As it draws only 60 A from its supply, it hasvery low self-heating, less than 0.1 C in still air. The LM35 israted to operate over a 55 to +150 C temperature range,while the LM35C is rated for a 40 to +110 C range (10 with improved accuracy). The LM35 series is available pack-aged in hermetic TO-46 transistor packages, while theLM35C, LM35CA, and LM35D are also available in theplastic TO-92 transistor package. The LM35D is also avail-able in an 8-lead surface mount small outline package and aplastic TO-220 package.