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TMP112AIDRLR-TMP112AIDRLT
TMP112 High-Precision, Low-Power, Digital Temperature Sensor
Temp.
Sensor
A/D
Converter
Control
Serial
Interface
Temperature
SCL
SDA
GND2 5 V+
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TMP112SBOS473F –MARCH 2009–REVISED FEBRUARY 2018
TMP112x High-Accuracy, Low-Power, Digital Temperature Sensors With SMBus and Two-
Wire Serial Interfacein SOT563 Features TMP112A Accuracy Without Calibration: 0.5°C (Maximum) From 0°Cto +65°C (3.3V) 1.0°C (Maximum) From –40°Cto +125°C TMP112B Accuracy Without Calibration: 0.5°C (Maximum) From 0°Cto +65°C (1.8V) 1.0°C (Maximum) From –40°Cto +125°C TMP112N Accuracy Without Calibration: 1.0°C (Maximum) From –40°Cto +125°C SOT563 Package (1.6 mm× 1.6 mm) Low Quiescent Current: 10-μA Active (Maximum), 1-μA Shutdown
(Maximum) Supply Range: 1.4Vto 3.6V Resolution:12 Bits Digital Output: SMBus™, Two-Wire, andI2C
Interface Compatibility NIST Traceable
Applications Portable and Battery-Powered Applications 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
DescriptionThe TMP112 familyof devices are digital temperature
sensors designed for high-accuracy, low-power,
NTC/PTC thermistor replacements where high
accuracyis required. The TMP112A and TMP112B
offers 0.5°C accuracy and are optimizedto 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 tablesto derive the temperature. The on-chip
12-bit ADC offers resolutions downto 0.0625°C.
The 1.6-mm× 1.6-mm SOT563 packageis 68%
smaller footprint than an SOT23 package. The
TMP112 family features SMBus, two-wire andI2C
interface compatibility, and allows upto four devices one bus. The device also featuresan SMBus alert
function. The deviceis specified to operate over
supply voltages from 1.4to 3.6V with the maximum
quiescent currentof 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 deviceis specified
for operation overa temperature rangeof –40°Cto
+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.
Device Information(1)(1) Forall available packages, see the orderable addendumat
the endofthe data sheet.
Block Diagram
