LM135H National Semiconductor, LM135H Datasheet
LM135H
Specifications of LM135H
Available stocks
Related parts for LM135H
LM135H Summary of contents
Page 1
... The LM135 operates over a −55˚C to +150˚C temperature range while the LM235 operates over a −40˚C to +125˚C Schematic Diagram © 2000 National Semiconductor Corporation temperature range. The LM335 operates from −40˚C to +100˚C. The LM135/LM235/LM335 are available packaged in hermetic TO-46 transistor packages while the LM335 is also available in plastic TO-92 packages ...
Page 2
... See NS Package Number Z03A www.national.com SO-8 Surface Mount Package DS005698-25 *Case is connected to negative pin Order Number LM335M See NS Package Number M08A 2 TO-46 Metal Can Package* DS005698-26 Bottom View Order Number LM135H, LM135H-MIL, LM235H, LM335H, LM135AH, LM235AH or LM335AH See NS Package Number H03H ...
Page 3
... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Reverse Current Forward Current Storage Temperature TO-46 Package TO-92 Package SO-8 Package Temperature Accuracy LM135/LM235, LM135A/LM235A Parameter Operating Output Voltage T Uncalibrated Temperature Error ...
Page 4
... Electrical Characteristics Note 1: Accuracy measurements are made in a well-stirred oil bath. For other conditions, self heating must be considered. Note 2: Continuous operation at these temperatures for 10,000 hours for H package and 5,000 hours for Z package may decrease life expectancy of the device. Note 3: Thermal Resistance ...
Page 5
... If the sensor is used in an ambient where the thermal resis- tance is constant, self heating errors can be calibrated out. This is possible if the device is run with a temperature stable current. Heating will then be proportional to zener voltage and therefore temperature. This makes the self heating error proportional to absolute temperature the same as scale factor errors ...
Page 6
... Typical Applications (Continued) Minimum Temperature Sensing DS005698-4 www.national.com Average Temperature Sensing DS005698-18 Isolated Temperature Sensor 6 Remote Temperature Sensing DS005698-19 Wire length for 1˚C error due to wire drop * 0 AWG FEET FEET 14 4000 8000 16 2500 5000 18 1600 3200 20 1000 2000 22 625 1250 24 400 ...
Page 7
... Typical Applications (Continued) Ground Referred Fahrenheit Thermometer *Adjust R2 for 2.554V across LM336. Adjust R1 for correct output. Simple Temperature Controller Simple Temperature Control Centigrade Thermometer DS005698-22 *Adjust for 2.7315V at output of LM308 7 DS005698-5 DS005698-21 DS005698-23 www.national.com ...
Page 8
... Select R3 for proper thermocouple type Adjustments: Compensates for both sensor and resistor tolerances 1. Short LM329B 2. Adjust R1 for Seebeck Coefficient times ambient temperature (in degrees K) across R3. 3. Short LM335 and adjust R2 for voltage across R3 corresponding to thermocouple type www.national.com Fahrenheit Thermometer Compensation for Grounded Thermocouple ...
Page 9
... Typical Applications (Continued) Single Power Supply Cold Junction Compensation * Select R3 and R4 for thermocouple type THERMO- COUPLE Adjustments: 1. Adjust R1 for the voltage across R3 equal to the Seebeck Coefficient times ambient temperature in degrees Kelvin. 2. Adjust R2 for voltage across R4 corresponding to thermocouple R3 R4 COEFFICIENT J 1.05K 385 ...
Page 10
... Remove short across LM329B and adjust R2 so that V 5. Remove short across thermocouple. Fast Charger for Nickel-Cadmium Batteries † Adjust greater V than D2. Z Charge terminates on 5˚C temperature rise. Couple D2 to battery. www.national.com Centigrade Calibrated Thermocouple Thermometer = 246 mV @ 25˚C. OUT ...
Page 11
... Adjust for zero with sensor at 0˚C and 10T pot set at 0˚C *Adjust for zero output with 10T pot set at 100˚C and sensor at 100˚C Output reads difference between temperature and dial setting of 10T pot Differential Temperature Sensor Variable Offset Thermometer ...
Page 12
... Air Flow Detector *Self heating is used to detect air flow DS005698-16 Calibrated Temperature Error: The error between operat- ing output voltage and case temperature at 10 mV/˚K over a temperature range at a specified operating current with the 25˚C error adjusted to zero DS005698-17 ...
Page 13
... Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM135H, LM235H, LM335H, LM135AH, LM235AH or LM335AH Metal Can Package (H) NS Package Number H03H 8-Lead Molded Small Outline Package (M) Order Number LM335M NS Package Number M08A 13 www.national.com ...
Page 14
... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...