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LM20

ACTIVE

±1.5°C Analog Output Temperature Sensor

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Data sheet

LM20

ACTIVE
Data sheet Order now

Product details

Local sensor accuracy (max) 1.5, 2.5, 4 Operating temperature range (°C) -55 to 130 Supply voltage (min) (V) 2.4 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 7 Interface type Analog output Sensor gain (mV/°C) -11.77 Rating Catalog Features Industry standard pinout, UL recognized
Local sensor accuracy (max) 1.5, 2.5, 4 Operating temperature range (°C) -55 to 130 Supply voltage (min) (V) 2.4 Supply voltage (max) (V) 5.5 Supply current (max) (µA) 7 Interface type Analog output Sensor gain (mV/°C) -11.77 Rating Catalog Features Industry standard pinout, UL recognized
DSBGA (YZR) 4 1.5625 mm² 1.25 x 1.25 SOT-SC70 (DCK) 5 4.2 mm² 2 x 2.1
  • Rated for −55°C to 130°C Range
  • Available in SC70 and DSBGA Package
  • Predictable Curvature Error
  • Suitable for Remote Applications
  • Accuracy at 30°C ±1.5 to ±4°C (Maximum)
  • Accuracy at 130°C and −55°C ±2.5 to ±5°C (Maximum)
  • Power Supply Voltage Range 2.4 V to 5.5 V
  • Current Drain 10 μA (Maximum)
  • Nonlinearity ±0.4% (Typical)
  • Output Impedance 160 Ω (Maximum)
  • Load Regulation
       0 μA < IL< 16 μA −2.5 mV (Maximum)

All trademarks are the property of their respective owners. All trademarks are the property of their respective owners.

  • Rated for −55°C to 130°C Range
  • Available in SC70 and DSBGA Package
  • Predictable Curvature Error
  • Suitable for Remote Applications
  • Accuracy at 30°C ±1.5 to ±4°C (Maximum)
  • Accuracy at 130°C and −55°C ±2.5 to ±5°C (Maximum)
  • Power Supply Voltage Range 2.4 V to 5.5 V
  • Current Drain 10 μA (Maximum)
  • Nonlinearity ±0.4% (Typical)
  • Output Impedance 160 Ω (Maximum)
  • Load Regulation
       0 μA < IL< 16 μA −2.5 mV (Maximum)

All trademarks are the property of their respective owners. All trademarks are the property of their respective owners.

The LM20 is a precision analog output CMOS integrated-circuit temperature sensor that operates over −55°C to 130°C. The power supply operating range is 2.4 V to 5.5 V. The transfer function of LM20 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LM20 when specified to a parabolic transfer function is ±1.5°C at an ambient temperature of 30°C. The temperature error increases linearly and reaches a maximum of ±2.5°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V, the temperature range extremes are 130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive extreme remains at 130°C.

The LM20 quiescent current is less than 10 μA. Therefore, self-heating is less than 0.02°C in still air. Shutdown capability for the LM20 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates or does not necessitate shutdown.

The LM20 is a precision analog output CMOS integrated-circuit temperature sensor that operates over −55°C to 130°C. The power supply operating range is 2.4 V to 5.5 V. The transfer function of LM20 is predominately linear, yet has a slight predictable parabolic curvature. The accuracy of the LM20 when specified to a parabolic transfer function is ±1.5°C at an ambient temperature of 30°C. The temperature error increases linearly and reaches a maximum of ±2.5°C at the temperature range extremes. The temperature range is affected by the power supply voltage. At a power supply voltage of 2.7 V to 5.5 V, the temperature range extremes are 130°C and −55°C. Decreasing the power supply voltage to 2.4 V changes the negative extreme to −30°C, while the positive extreme remains at 130°C.

The LM20 quiescent current is less than 10 μA. Therefore, self-heating is less than 0.02°C in still air. Shutdown capability for the LM20 is intrinsic because its inherent low power consumption allows it to be powered directly from the output of many logic gates or does not necessitate shutdown.
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Technical documentation

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Type Title Date
* Data sheet LM20 2.4-V, 10-µA, SC70, DSBGA Temperature Sensor datasheet (Rev. Q) PDF | HTML 31 Jan 2015
Certificate UL Certificate of Compliance Vol1-Sec12 E232195 06 Aug 2018
Application note AN-1256 Tiny Temperature Sensors for Portable Systems (Rev. A) 26 Apr 2013
User guide LM20X User's Guide 28 Feb 2013
Application note Tiny Temperature Sensors for Remote Systems 17 Feb 2003

Design & development

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User guide: PDF
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Package Pins CAD symbols, footprints & 3D models
DSBGA (YZR) 4 Ultra Librarian
SOT-SC70 (DCK) 5 Ultra Librarian
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