Part Number |
LM335 |
Manufacturers |
STMicroelectronics |
Logo |
|
Description |
Precision temperature sensor |
Datasheet |
LM335 Datasheet (PDF) |
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
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.
TO-92 (Plastic package)
SO-8 (Plastic micropackage)
Pin connections
TO-92 (Bottom view)
ADJ v+ v-
SO-8 (Top view)
V+
NC
NC ADJ
8
7
6
5
1
2
3
NC NC
NC
4 V
-
February 2008
Rev 3
1/16
www.st.com
16
Schematic diagram
1
Schematic diagram
Figu.