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
в–
в–
в–
в–
в–
в– …
