LM235 SENSORS Datasheet

LM235 Datasheet, PDF, Equivalent


Part Number

LM235

Description

PRECISION TEMPERATURE SENSORS

Manufacture

STMicroelectronics

Total Page 11 Pages
Datasheet
Download LM235 Datasheet


LM235
LM135
LM235-LM335,A
PRECISION TEMPERATURE SENSORS
.... DIRECTLY CALIBRATED IN oK
1oC INITIAL ACCURACY
OPERATES FROM 450µA TO 5mA
LESS THAN 1DYNAMIC IMPEDANCE
Z
TO92
(Plastic Package
DE SC RI P TI O N
The LM135, LM235, LM335 are precision tempera-
ture sensors which can be easily calibrated. They
operate as a 2-terminal Zener and the breakdown
voltage is directly proportional to the absolute tem-
perature at 10mV/oK. The circuit has a dynamic im-
pedance of less than 1and operates within a
range of current from 450µA to 5mA without altera-
tion of its characteristics. Calibrated at +25oC, the
LM135, LM235, LM335 have a typical error of less
than 1oC over a 100oC temperature range. Unlike
other sensors, the LM135, LM235, LM335 have a
linear output.
D
SO8
(Plastic Micropackage)
ORDER CODES
Part num-
ber
LM135
LM235
LM335,A
Temperature
Range
–55oC, +150oC
–40oC, +125oC
–40oC, +100oC
PIN CONNECTIONS
TO92
(Bottom view)
ADJ V+
V-
SO8
(Top view)
V+ NC NC ADJ
8765
Package
ZD
••
••
••
October 1997
1
NC
2
NC
3
NC
4
V
-

LM235
LM135-LM235-LM335,A
SCHEMATIC DIAGRAM
50k
49k
1V
49k15.6k
3 pF 10k
12pF
60 0
30k
2 AD J
13.8k
2k1.1k
3V
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Current
IR Reverse
IF Forward
Toper
Operating Free-air Temperature Range - (note 1)
Continuous
Intermittent
Tstg Storage Temperature Range
Note : 1. Tj 150oC
LM135
LM235
LM335,A
15 15 15
10 10 10
–55 to +150 –40 to +125 –40 to +100
+150 to +200 +125 to +150 +100 to +125
–65 to +150 –65 to +150 –65 to +150
Unit
mA
oC
oC
2/11


Features LM135 LM235-LM335,A PRECISION TEMPERATUR E SENSORS . . . . DIRECTLY CALIBRATED IN oK 1oC INITIAL ACCURACY OPERATES FR OM 450µA TO 5mA LESS THAN 1Ω DYNAMIC IMPEDANCE Z TO92 (Plastic Package DE SCRIPTION The LM135, LM235, LM335 are p recision temperature sensors which can be easily calibrated. They operate as a 2-terminal Zener and the breakdown vol tage is directly proportional to the ab solute temperature at 10mV/oK. The circ uit has a dynamic impedance of less tha n 1Ω and operates within a range of c urrent from 450µA to 5mA without alter ation of its characteristics. Calibrate d at +25oC, the LM135, LM235, LM335 hav e a typical error of less than 1oC over a 100oC temperature range. Unlike othe r sensors, the LM135, LM235, LM335 have a linear output. PIN CONNECTIONS TO92 (Bottom view) V+ 8 D SO8 (Plastic Micr opackage) ORDER CODES Part number LM13 5 LM235 LM335,A Temperature Range –55 C, +150 C –40 C, +125 C –40 C, +10 0 C o o o o o o Package Z • • • D • • • SO8 (Top view) NC 7 NC 6 ADJ 5 A.
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