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LM235 - Precision temperature sensor

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.

Features

  • Directly calibrated in °K.
  • 1°C initial accuracy.
  • Operates from 450µA to 5mA.
  • Less than 1Ω dynamic impedance.

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Full PDF Text Transcription

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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.
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