Datasheet Texas Instruments LM235A

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Documents LM135, LM135A, LM235, LM235A, LM335, LM335A
SNIS160E – MAY 1999 – REVISED FEBRUARY 2015 LMx35, LMx35A Precision Temperature Sensors
1 Features 3 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/В°K. With less than 1-О© dynamic impedance,
the device operates over a current range of 400 ОјA to
5 mA with virtually no change in performance. When
calibrated at 25В°C, the LM135 has typically less than
1В°C error over a 100В°C temperature range. Unlike
other sensors, the LM135 has a linear output. 1 Directly Calibrated to the Kelvin Temperature
Scale
1В°C Initial Accuracy Available
Operates from 400 ОјA to 5 mA
Less than 1-О© Dynamic Impedance
Easily Calibrated
Wide Operating Temperature Range …

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/В°K. With less than 1О© dynamic impedance the device operates over a current range
of 400 ОјA to 5 mA with virtually no change in performance.
When calibrated at 25В°C the LM135 has typically less than 1В°
C error over a 100В°C temperature range. Unlike other sensors
the LM135 has a linear output.
Applications for the LM135 include almost any type of temperature sensing over a -55В°C to 150В°C temperature range.
The low impedance and linear output make interfacing to
readout or control circuitry especially easy.
The LM135 operates over a -55В°C to 150В°C temperature
range while the LM235 operates over a -40В°C to 125В°C tem-perature range. The LM335 operates from -40В°C to 100В°C.
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
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