參數(shù)資料
型號: LM135Z
廠商: 意法半導(dǎo)體
元件分類: 溫度/濕度傳感器
英文描述: PRECISION TEMPERATURE SENSORS
中文描述: 高精度溫度傳感器
文件頁數(shù): 1/14頁
文件大?。?/td> 291K
代理商: LM135Z
LM135/LM235/LM335, LM135A/LM235A/LM335A
Precision Temperature Sensors
General Description
The LM135 series are precision, easily-calibrated, integrated
circuit temperature sensors. Operating as a 2-terminal zener,
the LM135 has a breakdown voltage directly proportional to
absolute temperature at +10 mV/K. With less than 1
dy-
namic impedance the device operates over a current range
of 400 μA to 5 mA with virtually no change in performance.
When calibrated at 25C the LM135 has typically less than
1C error over a 100C temperature range. Unlike other
sensors the LM135 has a linear output.
Applications for the LM135 include almost any type of tem-
perature sensing over a 55C to +150C temperature
range. The low impedance and linear output make interfac-
ing to readout or control circuitry especially easy.
The LM135 operates over a 55C to +150C temperature
range while the LM235 operates over a 40C to +125C
temperature range. The LM335 operates from 40C to
+100C. The LM135/LM235/LM335 are available packaged
in hermetic TO-46 transistor packages while the LM335 is
also available in plastic TO-92 packages.
Features
n
Directly calibrated in Kelvin
n
1C initial accuracy available
n
Operates from 400 μA to 5 mA
n
Less than 1
dynamic impedance
n
Easily calibrated
n
Wide operating temperature range
n
200C overrange
n
Low cost
Schematic Diagram
DS005698-1
November 2000
L
2000 National Semiconductor Corporation
DS005698
www.national.com
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