LM335Z STMicroelectronics, LM335Z Datasheet

Board Mount Temperature Sensors Precision 1 Deg Cel

LM335Z

Manufacturer Part Number
LM335Z
Description
Board Mount Temperature Sensors Precision 1 Deg Cel
Manufacturer
STMicroelectronics
Datasheet

Specifications of LM335Z

Full Temp Accuracy
2 C
Package / Case
TO-92-3
Supply Voltage (max)
3 V
Supply Voltage (min)
3 V
Description/function
Precision Temperature Sensors
Gain
10 mV / K
Maximum Operating Temperature
+ 100 C
Minimum Operating Temperature
- 40 C
Output Type
Analog
Supply Current
1 mA
Ic Output Type
Voltage
Sensing Accuracy Range
± 1°C
Sensor Case Style
TO-92
No. Of Pins
3
Filter Terminals
Through Hole
Mounting Type
Through Hole
Ic Generic Number
335
Rohs Compliant
Yes
Ic Function
Temperature Sensor IC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

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NS
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Part Number:
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Features
Description
The LM135, LM235, LM335 are precision
temperature sensors which can be easily
calibrated. They operate as a 2-terminal Zener
and the breakdown voltage is directly proportional
to the absolute temperature at 10mV/°K.
The circuit has a dynamic impedance of less than
1Ω and operates within a range of current from
450µA to 5mA without alteration of its
characteristics.
Calibrated at +25°C, the LM135, LM235, and
LM335 have a typical error of less than 1°C over a
100°C temperature range. Unlike other sensors,
the LM135, LM235, LM335 have a linear output.
February 2008
Directly calibrated in °K
1°C initial accuracy
Operates from 450µA to 5mA
Less than 1Ω dynamic impedance
Rev 3
Precision temperature sensors
LM135-LM235-LM335
(Plastic micropackage)
(Plastic package)
Pin connections
ADJ
(Bottom view)
V+
NC
8
1
(Top view)
TO-92
TO-92
SO-8
NC
NC
SO-8
7
2
v+
NC
NC
6
3
v-
ADJ
5
4
V
-
www.st.com
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LM335Z Summary of contents

Page 1

Features ■ Directly calibrated in °K ■ 1°C initial accuracy ■ Operates from 450µA to 5mA ■ Less than 1Ω dynamic impedance Description The LM135, LM235, LM335 are precision temperature sensors which can be easily calibrated. They operate as a ...

Page 2

Schematic diagram 1 Schematic diagram Figure 1. Schematic diagram 2 Absolute maximum ratings Table 1. Absolute maximum ratings (AMR) Symbol Current I R Reverse I F Forward Operating free-air temperature (1) range T oper Continuous Intermittent T Storage temperature range ...

Page 3

LM135-LM235-LM335 3 Temperature accuracy Table 2. Temperature accuracy Parameter Operating output voltage T = +25° 1mA case R Uncalibrated temperature error ( +25°C case ≤ T ≤ min case max Temperature error with 25°C ...

Page 4

Electrical characteristics Figure 2. Reverse voltage change Reverse current (mA) Figure 4. Reverse characteristics Reverse voltage (V) Figure 6. Dynamic impedance Frequency (Hz) 4/16 LM135-LM235-LM335 Figure 3. Calibrated error Temperature (°C) Figure 5. Response time Time (µs) Figure 7. Noise ...

Page 5

LM135-LM235-LM335 Figure 8. Thermal resistance junction to air Air velocity (m/s) Figure 10. Thermal response in still air Time (min) Figure 12. Forward characteristics Forward current (mA) Electrical characteristics Figure 9. Thermal time constant Air velocity (m/s) Figure 11. Thermal ...

Page 6

Application information 5 Application information There is an easy method of calibrating the device for higher accuracies (see applications). The single point calibration works because the output of the LM135, LM235, LM335 is proportional to the absolute temperature with the ...

Page 7

LM135-LM235-LM335 Figure 15. Calibrated sensor * Calibrated for 2.982V at 25°C Figure 17. Isolated temperature sensor Application information Figure 16. Average temperature sensing 7/16 ...

Page 8

Application information Figure 18. Simple temperature controller Figure 19. Centigrade thermometer 8/16 LM135-LM235-LM335 ...

Page 9

LM135-LM235-LM335 Figure 20. Differential temperature sensor Figure 21. Thermocouple cold junction compensation (compensation for grounded thermocouple) Application information 9/16 ...

Page 10

Application information Figure 22. Single power supply cold junction compensation 10/16 LM135-LM235-LM335 ...

Page 11

... These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an STMicroelectronics trademark. ECOPACK specifications are available at: www.st.com. 6.1 TO-92 tape & ...

Page 12

Package information Table 4. TO-92 tape & reel package mechanical data Dim F1/F2 Δh Δ 12/16 Millimeters Min. Typ. Max. 5.0 5.0 4.0 ...

Page 13

LM135-LM235-LM335 6.2 TO-92 bulk package information Figure 24. TO-92 bulk package mechanical drawing Table 5. TO-92 bulk package mechanical data Dim Millimeters Min. Typ. Max. 1.27 3.2 3.7 4.2 4.45 5.00 5.2 4.58 ...

Page 14

Package information 6.3 SO-8 package information Figure 25. SO-8 package mechanical drawing Table 6. SO-8 package mechanical data Ref ccc 14/16 Dimensions Millimeters Min. Typ. Max. 1.75 0.10 ...

Page 15

... LM135-LM235-LM335 7 Ordering information Table 7. Order codes Order code LM135Z LM235D LM235DT LM235Z LM335D LM335DT LM335AD LM335ADT LM335Z LM335AZ LM335AZT 8 Revision history Table 8. Document revision history Date 6-May-2003 13-April-2004 11-Feb-2007 Temperature Package range -55°C to +150°C TO-92 -40°C to +125°C SO-8 -40°C to +125°C TO-92 -40° ...

Page 16

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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