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TMP121AIDBVR-TMP121AIDBVT
1.5C Accurate Digital Temperature Sensor with SPI Interface
FEATURES DIGITAL OUTPUT : SPI-Compatible Interface RESOLUTION: 12-Bit + Sign, 0.0625°C ACCURACY:±1.5°C from −25°C to +85°C (max)
LOW QUIESCENT CURRENT : 50µA (max) WIDE SUPPLY RANGE: 2.7V to 5.5V TINY SOT23-6 PACKAGE OPERATION TO 150°C
APPLICATIONS POWER-SUPPLY TEMPERATURE
MONITORING COMPUTER PERIPHERAL THERMAL
PROTECTION NOTEBOOK COMPUTERS CELL PHONES BATTERY MANAGEMENT OFFICE MACHINES
DESCRIPTIONThe TMP121 and TMP123 are SPI-compatible tempera-
ture sensors available in the tiny SOT23-6 package.
Requiring no external components, the TMP121 and
TMP123 are capable of measuring temperatures within
2°C of accuracy over a temperature range of −40°C to
+125°C. Low supply current, and a supply range from 2.7V
to 5.5V, make the TMP121 and TMP123 excellent
candidates for low-power applications.
The TMP121 and TMP123 are ideal for extended thermal
measurement in a variety of communication, computer,
consumer, environmental, industrial, and instrumentation
applications.
TMP121Temperature
GND=No Connection(1)V+
SCK
TMP123GND=No Connection(1)V+
SCK
Temperature
(1) Pins labeled NC should be left floating or connected to GND.
TMP121
TMP123SBOS273C − JUNE 2003 − REVISED FEBRUARY 2005
1.5°C Accurate Digital T emperature Sensor
with SPI Interface
