1 Features
• TMP117 high-accuracy temperature sensor
– ±0.1 °C (maximum) from –20 °C to 50 °C
– ±0.15 °C (maximum) from –40 °C to 70 °C
– ±0.2 °C (maximum) from –40 °C to 100 °C
– ±0.25 °C (maximum) from –55 °C to 125 °C
– ±0.3 °C (maximum) from –55 °C to 150 °C
• Operating temperature range: –55 °C to 150 °C
• Low power consumption:
– 3.5-μA, 1-Hz conversion cycle
– 150-nA shutdown current
• Supply range:
– 1.7 V to 5.5 V from –55 °C to 70 °C
– 1.8 V to 5.5 V from –55 °C to 150 °C
• 16-bit resolution: 0.0078°C (1 LSB)
• Programmable temperature alert limits
• Selectable averaging
• Digital offset for system correction
• General-purpose EEPROM: 48 bits
• NIST traceability
• SMBus™, I2C interface compatibility
• Medical grade: meets ASTM E1112 and ISO
80601-2-56
• RTDs replacement: PT100, PT500, PT1000

2 Applications
• Electronic thermometers
• Wireless environmental sensors
• Thermostats
• Automotive test equipment
• Wearable fitness and activity monitors
• Cold chain asset tracking
• Gas meters and heat meters
• Temperature transmitters

3 Description
The TMP117 is a high-precision digital temperature
sensor. It is designed to meet ASTM E1112
and ISO 80601 requirements for electronic patient
thermometers. The TMP117 provides a 16-bit
temperature result with a resolution of 0.0078 °C
and an accuracy of up to ±0.1 °C across the
temperature range of –20 °C to 50 °C with no
calibration. The TMP117 has in interface that is
I2C- and SMBus™-compatible, programmable alert
functionality, and the device can support up to four
devices on a single bus. Integrated EEPROM is
included for device programming with an additional
48-bits memory available for general use.
The low power consumption of the TMP117 minimizes
the impact of self-heating on measurement accuracy.
The TMP117 operates from 1.7 V to 5.5 V and
typically consumes 3.5 μA.
For non-medical applications, the TMP117 can serve
as a single chip digital alternative to a Platinum RTD.
The TMP117 has an accuracy comparable to a Class
AA RTD, while only using a fraction of the power
of the power typically needed for a PT100 RTD.
The TMP117 simplifies the design effort by removing
many of the complexities of RTDs such as precision
references, matched traces, complicated algorithms,
and calibration.
The TMP117 units are 100% tested on a production
setup that is NIST traceable and verified with
equipment that is calibrated to ISO/IEC 17025
accredited standards.