LM45

ACTIVO

Sensor de temperatura de salida analógica de ±3 °C, con ganancia de 10 mV/°C

Detalles del producto

Local sensor accuracy (max) 2, 3 Rating Catalog Operating temperature range (°C) -20 to 100 Supply current (max) (µA) 120 Interface type Analog output Sensor gain (mV/°C) 10 Features UL recognized
Local sensor accuracy (max) 2, 3 Rating Catalog Operating temperature range (°C) -20 to 100 Supply current (max) (µA) 120 Interface type Analog output Sensor gain (mV/°C) 10 Features UL recognized
SOT-23 (DBZ) 3 6.9204 mm² (2.92 mm × 2.37 mm)
  • Calibrated Directly in ° Celsius (Centigrade)
  • Linear + 10.0 mV/°C Scale Factor
  • ±3°C Accuracy Guaranteed
  • Rated for Full −20° to +100°C Range
  • Suitable for Remote Applications
  • Low Cost Due to Wafer-Llevel Trimming
  • Operates from 4.0V to 10V
  • Less than 120 μA Current Drain
  • Low Self-Heating, 0.20°C in Still Air
  • Nonlinearity Only ±0.8°C Max Over Temp
  • Low Impedance Output, 20Ω for 1 mA Load
  • Calibrated Directly in ° Celsius (Centigrade)
  • Linear + 10.0 mV/°C Scale Factor
  • ±3°C Accuracy Guaranteed
  • Rated for Full −20° to +100°C Range
  • Suitable for Remote Applications
  • Low Cost Due to Wafer-Llevel Trimming
  • Operates from 4.0V to 10V
  • Less than 120 μA Current Drain
  • Low Self-Heating, 0.20°C in Still Air
  • Nonlinearity Only ±0.8°C Max Over Temp
  • Low Impedance Output, 20Ω for 1 mA Load

The LM45 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM45 does not require any external calibration or trimming to provide accuracies of ±2°C at room temperature and ±3°C over a full −20 to +100°C temperature range. Low cost is assured by trimming and calibration at the wafer level. The LM45's low output impedance, linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy. It can be used with a single power supply, or with plus and minus supplies. As it draws only 120 μA from its supply, it has very low self-heating, less than 0.2°C in still air. The LM45 is rated to operate over a −20° to +100°C temperature range.

The LM45 series are precision integrated-circuit temperature sensors, whose output voltage is linearly proportional to the Celsius (Centigrade) temperature. The LM45 does not require any external calibration or trimming to provide accuracies of ±2°C at room temperature and ±3°C over a full −20 to +100°C temperature range. Low cost is assured by trimming and calibration at the wafer level. The LM45's low output impedance, linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy. It can be used with a single power supply, or with plus and minus supplies. As it draws only 120 μA from its supply, it has very low self-heating, less than 0.2°C in still air. The LM45 is rated to operate over a −20° to +100°C temperature range.

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM45 SOT-23 Precision Centigrade Temperature Sensors datasheet (Rev. C) 19/02/2013
Certificado UL Certificate of Compliance Vol1-Sec8 E232195 6/08/2018
Nota sobre la aplicación Tiny Temperature Sensors for Remote Systems 17/02/2003

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