Code example or demo
TMP112
±0.5°C 1.4V to 3.6V digital temperature sensor with I2C/SMBus in 2.56mm2 package
Data sheet
TMP112
- TMP112A Accuracy Without Calibration :
- 0.5°C (Maximum) From 0°C to +65°C (3.3 V)
- 1.0°C (Maximum) From –40°C to +125°C
- TMP112B Accuracy Without Calibration :
- 0.5°C (Maximum) From 0°C to +65°C (1.8 V)
- 1.0°C (Maximum) From –40°C to +125°C
- TMP112N Accuracy Without Calibration:
- 1.0°C (Maximum) From –40°C to +125°C
- SOT563 Package (1.6 mm × 1.6 mm)
- Low Quiescent Current:
- 10-µA Active (Maximum), 1-µA Shutdown (Maximum)
- Supply Range: 1.4 V to 3.6 V
- Resolution: 12 Bits
- Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
- NIST Traceable
The TMP112 family of devices are digital temperature sensors designed for high-accuracy, low-power, NTC/PTC thermistor replacements where high accuracy is required. The TMP112A and TMP112B offers 0.5°C accuracy and are optimized to provide the best PSR performance for 3.3V and 1.8V operation respectively, while TMP112N offers 1°C accuracy. These temperature sensors are highly linear and do not require complex calculations or lookup tables to derive the temperature. The on-chip 12-bit ADC offers resolutions down to 0.0625°C.
The 1.6-mm × 1.6-mm SOT563 package is 68% smaller footprint than an SOT23 package. The TMP112 family features SMBus, two-wire and I2C interface compatibility, and allows up to four devices on one bus. The device also features an SMBus alert function. The device is specified to operate over supply voltages from 1.4 to 3.6 V with the maximum quiescent current of 10 µA over the full operating range.
The TMP112 family is designed for extended temperature measurement in communication, computer, consumer, environmental, industrial, and instrumentation applications. The device is specified for operation over a temperature range of –40°C to +125°C.
The TMP112 family production units are 100% tested against sensors that are NIST-traceable and are verified with equipment that are NIST-traceable through ISO/IEC 17025 accredited calibrations.
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Technical documentation
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Driver or library
LM75SW-LINUX — Linux Driver for I2C temperature sensors
The Linux driver support LM75 compatible Temperature Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.
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IDE, configuration, compiler or debugger
ASC-STUDIO-TMP112 — ASC studio for configuring all aspects of the TMP112 temperature sensor
SysConfig can be used to help simplify configuration challenges and accelerate software development with the TMP112 temperature sensor.
Supported products & hardware
Products
Digital temperature sensors
Many TI reference designs include the TMP112
Use our reference design selection tool to review and identify designs that best match your application and parameters.
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| SOT-5X3 (DRL) | 6 | View options |
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