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Overview

TMP117 Temperature Sensor​

The TMP117 is a high-accuracy, low-power digital temperature sensor with an SMBus™- and I²C-compatible interface. It provides 16-bit temperature measurements with a resolution of 0.0078 °C per LSB and an accuracy of up to ±0.1 °C (–20 °C to 50 °C) without the need for calibration.

Designed to meet ASTM E1112 and ISO 80601-2-56 standards, the TMP117 is suitable for medical-grade electronic thermometers, as well as industrial and consumer applications. It can serve as a digital replacement for platinum RTDs (PT100, PT500, PT1000) while consuming only a fraction of the power and eliminating the need for precision analog front-end circuitry.

The device supports programmable alert limits, averaging modes to reduce noise, and includes a 48-bit general-purpose EEPROM for system-level calibration or identification. Its low active current and ultra-low shutdown current make it ideal for battery-powered devices.

TMP117 Digital Temperature Sensor
TMP117 High-Accuracy Digital Temperature Sensor

Which products is this documentation for?​

TMP117 Temperature Sensor

TMP117 Temperature Sensor

333175

Key Features​

  • Accuracy:
    • ±0.1 °C (–20 °C to 50 °C)
    • ±0.25 °C (–55 °C to 125 °C)
    • ±0.3 °C (–55 °C to 150 °C)
  • Temperature Range: –55 °C to +150 °C
  • Interface: I²C and SMBus™, up to 400 kHz, supports up to 4 devices on one bus
  • Power Consumption:
    • 3.5 µA at 1-Hz conversion cycle
    • 150 nA shutdown current
  • Operating Voltage: 1.7 V – 5.5 V
  • Alert Functions: Programmable high/low temperature limits, therm/alert modes
  • EEPROM: 48-bit general-purpose memory
  • Medical Compliance: ASTM E1112, ISO 80601-2-56
  • Mounting: two mounting holes for secure attachment
  • Dimensions: 38 x 22 mm (1.5 x 0.9 inches)