Electronic Components Datasheet Search
Selected language     English  ▼

LM335 Datasheet(PDF) 6 Page - STMicroelectronics

Part No. LM335
Description  Precision temperature sensors
Download  16 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com

 6 page
background image
Application information
Application information
There is an easy method of calibrating the device for higher accuracies (see Typical
The single point calibration works because the output of the LM135, LM235, LM335 is
proportional to the absolute temperature with the extrapolated output of sensor going to 0V
at 0°K (-273.15°C). Errors in output voltage versus temperature are only slope. Thus a
calibration of the slope at one temperature corrects errors at all temperatures.
The circuit output (calibrated or not) is given by the equation:
where T is the unknown temperature and To is the reference temperature (in °K).
Nominally, the output is calibrated at 10mV/°K.
Precautions should be taken to ensure good sensing accuracy. As in the case of all
temperatures sensors, self-heating can decrease accuracy. The LM135, LM235, and LM335
should operate with a low current but sufficient to drive the sensor and its calibration circuit
to their maximum operating temperature.
If the sensor is used in surroundings where the thermal resistance is constant, the errors
due to self-heating can be externally calibrated. This is possible if the circuit is biased with a
temperature stable current. Heating will then be proportional to Zener voltage and therefore
temperature. In this way, the error due to self-heating is proportional to the absolute
temperature as scale factor errors.
Typical applications
Figure 13.
Basic temperature sensor
Figure 14.
Wide operating supply

Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16 

Datasheet Download

Related Electronics Part Number

Part NumberComponents DescriptionHtml ViewManufacturer
LM35APrecision Centigrade Temperature Sensors 1 2 3 4 5 MoreNational Semiconductor (TI)
LM34_00Precision Fahrenheit Temperature Sensors 1 2 3 4 5 MoreNational Semiconductor (TI)
LM45_05SOT-23 Precision Centigrade Temperature Sensors 1 2 3 4 5 MoreNational Semiconductor (TI)
MF51E3270MF51E High Precision NTC Thermistors for Extremely Accurate Temperature Measurement 1 2 3 List of Unclassifed Manufacturers
MPX2102100 kPa On-Chip Temperature Compensated AND Calibrated Silicon Pressure Sensors 1 2 3 4 5 MoreFreescale Semiconductor, Inc
MAX6602Five-Channel Precision Temperature Monitor 1 2 3 4 5 MoreMaxim Integrated Products
MAX66945-Channel Precision Temperature Monitor with Beta Compensation 1 2 3 4 5 MoreMaxim Integrated Products
MF51-AMF51 Precision Glass Encapsulated NTC Thermistor for Temperature Measurement 1 2 List of Unclassifed Manufacturers
MPX201010 kPa On-Chip Temperature Compensated & Calibrated Silicon Pressure Sensors 1 2 3 4 5 MoreFreescale Semiconductor, Inc

Link URL

Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com 2003 - 2017    

Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl