(TMP121 / TMP123) 1.5C Accurate Digital Temperature Sensor
TMP121 TMP123
SBOS273C − JUNE 2003 − REVISED FEBRUARY 2005
1.5°C Accurate Digital Temperature Sensor with SPI Interfac...
Description
TMP121 TMP123
SBOS273C − JUNE 2003 − REVISED FEBRUARY 2005
1.5°C Accurate Digital Temperature Sensor with SPI Interface
D DIGITAL OUTPUT: SPI-Compatible Interface D RESOLUTION: 12-Bit + Sign, 0.0625°C www.DataSheet4U.com D ACCURACY: D D D D OPERATION TO 150°C
±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
FEATURES
DESCRIPTION
The TMP121 and TMP123 are SPI-compatible temperature 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.
APPLICATIONS
D D D D D
D POWER-SUPPLY TEMPERATURE
MONITORING COMPUTER PERIPHERAL THERMAL PROTECTION NOTEBOOK COMPUTERS CELL PHONES BATTERY MANAGEMENT OFFICE MACHINES
Temperature Diode Temp. Sensor Control Logic
Temperature Diode Temp. Sensor Control Logic
NC
1
6
SO
GND
1
6
SO
GND
2
∆Σ A/D Converter
Serial Interface
5
CS
NC
2
∆Σ A/D Converter
Serial Interface
5
CS
V+
3
OSC
Config. and Temp. Register
4
SCK
V+
3
OSC
Config. and Temp. Register
4
SCK
TMP121
TMP123
NC = No Connection(...
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