Texas Instruments TMP112
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.FEATURES
●1 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 2
APPLICATIONS
● Portable and Battery-PoweredAPPLICATIONS
● 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 3
DESCRIPTION
The on-chip 12-bit ADC offers resolutions down to 0.0625°C.