TMP125
SBOS323 − DECEMBER 2004
2°C Accurate Digital Temperature Sensor
with SPI Interface
FEATURES
D
DIGITAL OUTPUT: SPI-Compatible Interface
D
RESOLUTION: 10-Bit, 0.25°C
D
ACCURACY:
±2.0°C
(max) from −25°C to +85°C
±2.5°C
(max) from −40°C to +125°C
DESCRIPTION
The TMP125 is an SPI-compatible temperature sensor
available in the tiny SOT23-6 package. Requiring no
external components, the TMP125 is capable of
measuring temperatures within 2°C of accuracy over a
temperature range of −25°C to +85°C and 2.5°C of
accuracy over −40°C to +125°C. Low supply current, and
a supply range from 2.7V to 5.5V, make the TMP125 an
excellent candidate for low-power applications.
The TMP125 is ideal for extended thermal measurement
in a variety of communication, computer, consumer,
environmental,
industrial,
and
instrumentation
applications.
D
D
D
D
LOW QUIESCENT CURRENT: 50µA (max)
WIDE SUPPLY RANGE: 2.7V to 5.5V
TINY SOT23-6 PACKAGE
OPERATION FROM −40°C to +125°C
APPLICATIONS
PROTECTION
D
BASE STATION EQUIPMENT
D
COMPUTER PERIPHERAL THERMAL
D
D
D
D
NOTEBOOK COMPUTERS
DATA ACQUISITION SYSTEMS
TELECOM EQUIPMENT
OFFICE MACHINES
Temperature
Diode
Temp.
Sensor
Control
Logic
GND
1
6
SO
SI
2
∆Σ
A/D
Converter
Serial
Interface
5
CS
TMP125 RELATED PRODUCTS
FEATURES
2°C Digital Temp Sensors with Two-Wire Interface
1.5°C Digital Temp Sensors with Two-Wire Interface
1.5°C Digital Temp Sensors with SPI
1.5°C Programmable Digital Temp Sensors with SPI
PRODUCT
TMP100/101
TMP75/175
TMP121/123
TMP122/124
TMP125
V+
3
OSC
Config.
and Temp.
Register
4
SCK
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
SPI is a registered trademark of Motorola. All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright
2004, Texas Instruments Incorporated
www.ti.com
TI [ TEXAS INSTRUMENTS ]
