LM135-LM235-LM335
Precision temperature sensors
Features
■
■
■
■
Directly calibrated in °K
1°C initial accuracy
Operates from 450µA to 5mA
Less than 1Ω dynamic impedance
TO-92
(Plastic package)
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.
SO-8
(Plastic micropackage)
Pin connections
TO-92
(Bottom view)
v-
ADJ
v+
SO-8
(Top view)
V+
8
NC
7
NC
6
ADJ
5
NC
1
2
NC
NC
3
4
V
-
February 2008
Rev 3
1/16
16
STMICROELECTRONICS [ STMICROELECTRONICS ]
