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LM335 Datasheet(PDF) 3 Page - STMicroelectronics

Part No. LM335
Description  Precision temperature sensors
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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LM135-LM235-LM335
Temperature accuracy
3/16
3
Temperature accuracy
4
Electrical characteristics
Note:
Accuracy measurements are made in a well-stirred oil bath. For other conditions, self-
heating must be considered
Table 2.
Temperature accuracy
Parameter
LM135 - LM235 -
LM335A
LM335
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Operating output voltage
Tcase = +25°C, IR = 1mA
2.95
2.98
3.01
2.92
2.98
3.04
V
Uncalibrated temperature error (IR = 1mA)
Tcase = +25°C
Tmin ≤ Tcase ≤ Tmax
1
2
3
5
4
5
6
9
°C
Temperature error with 25°C calibration
Tmin ≤ Tcase ≤ Tmax., IR = 1mA
LM135 - LM235
LM335
LM335A
0.5
0.5
1.5
1
12
°C
Calibrated error at extended temperature
Tcase = Tmax (intermittent)
22
°C
Non-linearity (IR = 1mA)
LM135 - LM235
LM335
LM335A
0.3
0.3
1
1.5
0.3
1.5
°C
Table 3.
Electrical characteristics
Parameter
LM135 - LM235
LM335-LM335A
Unit
Min.
Typ.
Max.
Min.
Typ.
Max.
Operating output voltage change with current
450µA
≤ IR ≤ 5mA at constant temperature
2.5
10
3
14
mV
Dynamic impedance (IR = 1mA)
0.5
0.6
Ω
Output voltage temperature drift
+10
+10
mV/°C
Time constant
Still air
Air 0.5m/s
Stirred oil
80
10
1
80
10
1
s
Time stability (Tcase = +125°C)
0.2
0.2
°C/kh




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