Texas Instruments TMP116/TMP116N Digital Temperature Sensors
Texas Instruments TMP116/TMP116N Digital Temperature Sensors are low-power, high-precision temperature sensors with integrated EEPROM memory. The TMP116 provides a 16-bit temperature result with a resolution of 0.0078°C and an accuracy of up to ±0.2°C with no calibration. The device is I2C and SMBus interface compatible, has programmable alert functionality, and can support up to four devices on a single bus.
The TMP116 consumes minimal current that, in addition to providing power savings, minimizes self-heating and improves measurement accuracy. The TMP116 operates from 1.9V to 5.5V and typically consumes 3.5µA.
Across the device operating temperature range of –55°C to +125°C, the TMP116 exceeds the accuracy of a Class A resistance temperature detector (RTD) while consuming less than one-fifth of the typical excitation current for a PT100 RTD. The Texas Instruments TMP116 is easier to use than RTDs, eliminating the need for calibration, external circuitry, matched traces, and Kelvin connections.
Features
- TMP116 accuracy without calibration
- ±0.2°C (max) from –10°C to +85°C
- ±0.25°C (max) from –40°C to +105°C
- ±0.3°C (max) from +105°C to +125°C
- TMP116N accuracy without calibration
- ±0.3°C (max) from –25°C to +85°C
- ±0.4°C (max) from –40°C to +125°C
- Low quiescent current
- 3.5µA, 1Hz conversion cycle
- 250nA shutdown current
- 1.9V to 5.5V supply range
- 16 bits at 0.0078°C (1 LSB) resolution
- Programmable temperature alert limits
- General-purpose EEPROM (64 bits)
- NIST traceability
- SMBus™, I2C interface compatibility
Applications
- Environmental monitoring and thermostats
- Wearables
- Asset tracking and cold chain
- Gas meters and heat meters
- Test and measurement
- RTDs replacement: PT100, PT500, PT1000
- Cold-junction compensation of thermocouples
Simplified Schematic
Additional Resources
Related Development Tools
Texas Instruments TMP116EVM Evaluation Module (EVM)
Simple way to get started with the TMP116, a digital temperature sensor with integrated EEPROM.
Texas Instruments TMP116METER-EVM Digital Meter Evaluation Module
Evaluation module provides a convenient digital display of the TMP116's measurements.