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STLM20

Ultra-low current 2.4 V precision analog temperature sensor
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The STLM20 is a precision analog output temperature sensor for low current applications where maximizing battery life is important. It operates over a –55 °C to 130 °C (grade 7) or –40 °C to 85 °C (grade 9) temperature range. The power supply operating range is 2.4 V to 5.5 V. The maximum temperature accuracy of the STLM20 is ± 1.5 °C (±0.5 °C typ) at an ambient temperature of 25 °C and VCCof 2.7 V. 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. For the temperature grade 7 device, 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 from 2.7 V to 2.4 V changes the low end of the operating temperature range from –55 °C to –30 °C, while the positive remains at +130 °C).

The STLM20 has a maximum quiescent supply current of 8 μA. Therefore, self-heating is negligible.

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Errata Sheet
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Datasheet

Key Features

  • Precision analog voltage output temperature sensor
  • ±1.5 °C maximum temperature accuracy at 25 °C (±0.5 °C typical)
  • Ultra-low quiescent supply current: 4.8 μA (typ) and 8.0 μA (max)
  • Operating voltage range: 2.4 V to 5.5 V
  • Operating temperature range: –55 °C to 130 °C (grade 7) –40 °C to 85 °C (grade 9)
  • SOT323-5L 5-lead package
  • UDFN-4L 4-lead package

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS4810: Ultra-low current 2.4 V precision analog temperature sensor
13.1 414 KB

Application Notes

Description Version Size
pdf
AN2648: Increasing the resolution of analog temperature sensors
1.4 162 KB
pdf
AN4071: Introduction to comparators, their parameters and basic applications
1.0 482 KB

User Manual

Description Version Size
pdf
UM0442: Multiple application platform based on STR750FV2
1.0 772 KB

Related Tools and Software

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Part Number Description
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Publications and Collaterals

Flyer

Description Version Size
pdf
STLM20: analog temperature sensor
1.0 663 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeOperating Temperature (min) Operating Temperature (max) Automotive GradeOrder From STUnit Price (US$)*
@
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
STLM20DD9FActiveUFDFPN 4 1x1.3Tape And Reel-55130_-Distributor reported inventory date: 2014-07-28
Distributor NameRegionStockMin. order
RS COMPONENTSOrder NowEUROPE25305
DIGIKEYOrder NowWORLDWIDE48271
MOUSEROrder NowWORLDWIDE46511
Ecopack2PDF
XML
STLM20W87FActiveSOT323-5LTape And Reel-55130_-Distributor reported inventory date: 2014-07-28
Distributor NameRegionStockMin. order
ARROWOrder NowEUROPE872390
Farnell Element14Order NowEUROPE31921
RS COMPONENTSOrder NowEUROPE19855
RUTRONIKOrder NowEUROPE251
DIGIKEYOrder NowWORLDWIDE88401
MOUSEROrder NowWORLDWIDE114591
Ecopack2PDF
XML

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
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