Precision Fahrenheit Temperature Sensors - National Semiconductor

The LM34 series are precision integrated-circuit tempera- ture Sensors LM34 LM34A LM34C LM34CA LM34D , whose output voltage is linearly proportional to the Fahrenheit temperature. The LM34 thus has an advan- tage over linear Temperature Sensors calibrated in degrees Kelvin, as the user is not required to subtract a large con- stant voltage from its output to obtain convenient Fahren- heit scaling. The LM34 does not require any external cali- bration or trimming to provide typical accuracies of g(/2Fat room temperature and g1(/2F over a full b50 to a300F temperature range. Low cost is assured by trimming and calibration at the wafer level. The LM34s low output imped- ance, linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy. It CAN be used with single power supplies or with plus and minus supplies. As it draws only 75 mA from its supply, it has very low self-heating, less than 0.2F in still air. The LM34 is rated to operate over a b50 to a300F temperature range, while the LM34C is rated for a b40 to a230F range (0F with improved accuracy). The LM34 series is available packaged in hermetic TO-46 Transistor packages, while the LM34C LM34CA and LM34D are also available in the plastic TO-92 Transistor package. The LM34D is also available in an 8-lead surface mount small outline package. The LM34 is a complement to the LM35 (Centigrade) tem- perature Sensor By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM34CZ/NOPB Texas Instruments ±1°F Analog Output Temperature Sensor with Farenheit Scale Calibration and 30V Capability 3-TO-92 -40 to 110
LM34CAH/NOPB Texas Instruments ±1°F Analog Output Temperature Sensor with Farenheit Scale Calibration and 30V Capability 3-TO -40 to 110
LM34CAH Texas Instruments ±1°F Analog Output Temperature Sensor with Farenheit Scale Calibration and 30V Capability 3-TO -40 to 110
LM34CAZ/NOPB Texas Instruments ±1°F Analog Output Temperature Sensor with Farenheit Scale Calibration and 30V Capability 3-TO-92 -40 to 110
LM34C 's PackagesLM34C 's pdf datasheet
LM34A
LM34CA
LM34D




LM34C Pinout, Pinouts
LM34C pinout,Pin out
This is one package pinout of LM34C,If you need more pinouts please download LM34C's pdf datasheet.

LM34C Application circuits
LM34C circuits
This is one application circuit of LM34C,If you need more circuits,please download LM34C's pdf datasheet.


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