Texas Instruments TMP112/TMP112D-Q1 Digital Temperature Sensors
Texas Instruments TMP112/TMP112-Q1/TMP112D-Q1 Digital Temperature Sensor is a digital temperature sensor that is ideal for NTC/PTC thermistor replacement, where high accuracy is required. The device offers an accuracy of ±0.5°C without requiring calibration or external component signal conditioning. IC temperature sensors are highly linear and do not require complex calculations or lookup tables to derive the temperature. The TMP112D-Q1 and TMP112-Q1 devices are AEC-Q100 qualified for automotive applications. The calibrating for improved accuracy feature allows users to calibrate for accuracy as good as ±0.17°C. The on-chip 12-bit ADC offers resolutions down to 0.0625°C.
The 1.6mm×1.6mm SOT563 package is a 68% smaller footprint than a SOT23 package. The TMP112/TMP112-Q1 device 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 Texas Instruments TMP112/TMP112-Q1 production units are 100% tested against sensors that are NIST-traceable and are verified with equipment that is NIST-traceable through ISO/IEC 17025 accredited calibrations. The TMP112-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- TMP112A Accuracy Without Calibration
- 0.5°C (Maximum) From 0°C to +65°C (3.3V)
- 1.0°C (Maximum) From –40°C to +125°C
- TMP112B Accuracy Without Calibration
- 0.5°C (Maximum) From 0°C to +65°C (1.8V)
- 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 (1.6mm×1.6mm)
- Low Quiescent Current
- 10µA Active (Maximum), 1µA Shutdown (Maximum)
- 1.4V to 3.6V Supply Range
- Resolution: 12 Bits
- Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
- NIST Traceable
Applications
- Portable and Battery-Powered
- Power-Supply Temperature Monitoring
- Computer Peripheral Thermal Protection
- Notebook Computers
- Battery Management
- Office Machines
- Thermostat Controls
- Electromechanical Device Temperatures
- General Temperature Measurements
- Industrial Controls
- Test Equipment
- Medical Instrumentation
Functional Block Diagram
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