Ultra-low current 2.4 V precision analog temperature sensor

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.

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

设计

技术文档

产品规格
Description Version Size
DS4810 DS4810: Ultra-low current 2.4 V precision analog temperature sensor 13.1 414 KB
应用手册
Description Version Size
AN2648 AN2648: Increasing the resolution of analog temperature sensors 1.4 161 KB
AN4071 AN4071: Introduction to comparators, their parameters and basic applications 1.0 482 KB
用户手册
Description Version Size
UM0442 UM0442: Multiple application platform based on STR750FV2 1.0 761 KB

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样片和购买

型号 Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STLM20DD9F UFDFPN 4 1x1.3 Tape And Reel -40 85 Active - - NEC EAR99 THAILAND MORE INFO DISTRIBUTOR AVAILABILITY
STLM20W87F SOT323-5L Tape And Reel -55 130 Active - - NEC EAR99 THAILAND MORE INFO DISTRIBUTOR AVAILABILITY
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(*) 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

质量和可靠性

型号 Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STLM20DD9F ActiveUFDFPN 4 1x1.3IndustrialEcopack2 0 0
STLM20W87F ActiveSOT323-5LIndustrialEcopack2 0 0
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(**) 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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