LM135ZT [STMICROELECTRONICS]
ANALOG TEMP SENSOR-VOLTAGE, 2.95-3.01V, 1Cel, ROUND, THROUGH HOLE MOUNT, PLASTIC, TO-92, 3 PIN;
| 型号： | LM135ZT |
| 厂家： | 
ST |
| 描述： | ANALOG TEMP SENSOR-VOLTAGE, 2.95-3.01V, 1Cel, ROUND, THROUGH HOLE MOUNT, PLASTIC, TO-92, 3 PIN 输出元件 传感器 换能器 |
| 文件： | 总12页 (文件大小：1092K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LM135
LM235 - LM335,A
PRECISION TEMPERATURE SENSORS
■ DIRECTLY CALIBRATED IN °K
■ 1°C INITIAL ACCURACY
■ OPERATES FROM 450µA TO 5mA
■ LESS THAN 1Ω DYNAMIC IMPEDANCE
DESCRIPTION
Z
The LM135, LM235, LM335 are precision temper-
ature sensors which can be easily calibrated.
They operate as a 2-terminal Zener and the break-
down voltage is directly proportional to the abso-
lute temperature at 10mV/°K.
TO92
(Plastic Package)
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 characteris-
tics.
D
SO8
Calibrated at +25°C, the LM135, LM235, 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.
(Plastic Micropackage)
ORDER CODE
Part Number
Package
Temperature
Range
Z
D
LM135
-55°C, +150°C
-40°C, +125°C
-40°C, +100°C
•
•
•
•
•
•
LM235
LM335,A
Z = TO92 Plastic package - also available in Bulk (Z), Tape & Reel (ZT)
and Ammo Pack (AP)e
D = Small Outline Package (SO) - also available in Tape & Reel (DT)
PIN CONNECTIONS (top view)
SO8
(Top view)
TO92
(Top view)
v-
ADJ
v+
1/12
May 2003
LM135 - LM235 - LM335,A
SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
LM135
LM235
LM335,A
Unit
Current
Reverse
Forward
I
I
15
10
mA
R
F
1)
Toper
Operating Free-air Temperature Range
Continuous
-55 to +150
+150 to +200 +125 to +150 +100 to +125
-40 to +125
-40 to +100
°C
°C
Intermittent
T
Storage Temperature Range
-65 to +150
Stg
1. Tj ≤ 150°C
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LM135 - LM235 - LM335,A
TEMPERATURE ACCURACY
Parameter
LM135 - LM235 -
LM335A
LM335
Unit
Min.
2.95
Typ.
Max.
Min.
Typ.
Max.
Operating Output Voltage
T
case = +25°C, IR = 1mA
2.98
3.01
2.92
2.98
3.04
V
Uncalibrated Temperature Error (IR = 1mA)
Tcase = +25°C
1
2
3
5
5
4
6
9
°C
T
min. ≤ Tcase ≤ Tmax.
Temperature Error with 25°C Calibration
Tmin. ≤ Tcase ≤ Tmax., IR = 1mA LM135 - LM235
0.5
0.5
1.5
1
°C
1
2
2
LM335
LM335A
Calibrated Error at Extended Temperature
Tcase = Tmax. (intermittent)
2
°C
°C
Non-linearity (IR = 1mA)
LM135 - LM235
LM335
0.3
0.3
1
0.3
1.5
1.5
LM335A
ELECTRICAL CHARACTERISTICS - (note 1)
LM135 - LM235
LM335,A
Typ.
Parameter
Unit
Min.
Typ.
Max.
10
Min.
Max.
Operating output voltage change with current
450µA ≤ IR ≤ 5mA at constant temperature
2.5
0.5
3
14
mV
Ω
Dynamic Impedance (IR = 1mA)
Output Voltage Temperature Drift
0.6
+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
1. Accuracy measurements are made in a well-stirred oil bath. For other conditions, self heating must be considered
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LM135 - LM235 - LM335,A
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LM135 - LM235 - LM335,A
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LM135 - LM235 - LM335,A
APPLICATION HINTS
There is an easy method of calibrating the device
for higher accuracies (see typical applications).
Nominally the output is calibrated at 10mV/°K.
Precautions should be taken to ensure good sens-
ing accuracy. As in the case of all temperatures
sensors, self heating can decrease accuracy. The
LM135, LM235, LM335 should operate with a low
current but sufficient to drive the sensor and its
calibration circuit to their maximum operating tem-
perature.
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.
The single point calibration works because the
output of the LM135, LM235, LM335 is proportion-
al to the absolute temperature with the extrapolat-
ed output of sensor going to 0V at 0°K
(-273.15°C). Errors in output voltage versus tem-
perature are only slope. Thus a calibration of the
slope at one temperature corrects errors at all
temperatures.
The circuit output (calibrated or not) can be given
T
To
by the equation: VOT + VOTO
x
------
where T is the unknown temperature and To is the
reference temperature (in °K).
6/12
LM135 - LM235 - LM335,A
7/12
LM135 - LM235 - LM335,A
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LM135 - LM235 - LM335,A
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LM135 - LM235 - LM335,A
PACKAGE MECHANICAL DATA
SO-8 MECHANICAL DATA
mm.
inch
TYP.
DIM.
MIN.
TYP
MAX.
MIN.
MAX.
A
A1
A2
B
1.35
0.10
1.10
0.33
0.19
4.80
3.80
1.75
0.053
0.069
0.25
1.65
0.51
0.25
5.00
4.00
0.04
0.010
0.065
0.020
0.010
0.197
0.157
0.043
0.013
0.007
0.189
0.150
C
D
E
e
1.27
0.050
H
5.80
0.25
0.40
6.20
0.50
1.27
0.228
0.010
0.016
0.244
0.020
0.050
h
L
k
˚ (max.)
8
ddd
0.1
0.04
0016023/C
10/12
LM135 - LM235 - LM335,A
PACKAGE MECHANICAL DATA - TO92 TAPE AMMO PACK & TO92 TAPE & REEL
TO-92 MECHANICAL DATA
mm.
inches
TYP.
DIM.
MIN.
TYP
MAX.
5.0
MIN.
MAX.
0.197
0.197
0.157
AL
A
5.0
T
4.0
d
0.45
0.018
I1
2.5
11.7
12.4
5.95
2.4
0.098
0.461
0.488
0.234
0.094
-0.039
-0.039
0.689
0.224
0.335
P
12.7
12.7
6.35
2.5
0
13.7
13
0.500
0.500
0.250
0.098
0
0.539
0.512
0.266
0.110
0.039
0.039
0.748
0.248
0.384
0.020
0.787
0.650
0.984
0.165
0.433
PO
P2
F1/F2
D h
DP
W
6.75
2.8
1
-1
-1
0
1
0
17.5
5.7
18.0
6
19.0
6.3
9.75
0.5
20
0.709
0.236
0.354
W0
W1
W2
H
8.5
9
H0
H1
DO
L1
15.5
3.8
16
16.5
25
0.610
0.150
0.630
0.157
4.0
4.2
11
Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm
11/12
LM135 - LM235 - LM335,A
PACKAGE MECHANICAL DATA - TO92 BULK
TO-92 MECHANICA DATA
mm.
TYP
mils
TYP.
DIM.
MIN.
MAX.
MIN.
MAX.
A
b
4.32
4.95
170.1
194.9
0.36
4.45
3.30
2.41
1.14
12.7
2.16
0.92
0.41
0.51
4.95
3.94
2.67
1.40
15.49
2.41
1.52
0.56
14.2
175.2
129.9
94.9
20.1
194.9
155.1
105.1
55.1
D
E
e
e1
L
44.9
500.0
85.0
609.8
94.9
R
S1
W
36.2
59.8
16.1
22.0
0102782/C
Packing information are available at: http://www.st.com/stonline/prodpres/packages/stdlin.htm
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 2003 STMicroelectronics - All Rights Reserved
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12/12
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