LM20

DSBGA (YZR)

4

2 mm² 1.003 x 1.003

SOT-SC70 (DCK)

5

4 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 < I_L< 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 < I_L< 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)	31 Jan 2015
	Technical article	How to choose the right thermistor for your temperature sensing application	13 Feb 2020
	Technical article	How to enable thermal safety for automotive infotainment and cluster systems	15 Oct 2019
	Technical article	Driving industrial innovation with small-size sensors	12 Sep 2019
	Certificate	UL Certificate of Compliance Vol1-Sec12 E232195	06 Aug 2018
	Technical article	How to select a temperature sensor probe	18 Feb 2016
	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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