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TMP04 PDF预览

TMP04

更新时间: 2024-11-22 22:19:27
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亚德诺 - ADI /
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16页 378K
描述
Serial Digital Output Thermometers

TMP04 数据手册

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a
Serial Digital Output Thermometers  
TMP03/TMP04*  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
Low Cost 3-Pin Package  
Modulated Serial Digital Output  
Proportional to Temperature  
TMP03/04  
TEMPERATURE  
SENSOR  
±1.5؇C Accuracy (typ) from –25؇C to +100؇C  
Specified –40؇C to +100؇C, Operation to 150؇C  
Power Consumption 6.5 mW Max at 5 V  
Flexible Open-Collector Output on TMP03  
CMOS/TTL Compatible Output on TMP04  
Low Voltage Operation (4.5 V to 7 V)  
VPTAT  
DIGITAL  
MODULATOR  
V
REF  
1
2
3
APPLICATIONS  
D
V+  
GND  
OUT  
Isolated Sensors  
Environmental Control Systems  
Computer Thermal Monitoring  
Thermal Protection  
Industrial Process Control  
Power System Monitors  
PACKAGE TYPES AVAILABLE  
TO-92  
GENERAL DESCRIPTION  
The TMP03/TMP04 is a monolithic temperature detector that  
generates a modulated serial digital output that varies in direct  
proportion to the temperature of the device. An onboard sensor  
generates a voltage precisely proportional to absolute temperature  
which is compared to an internal voltage reference and input to a  
precision digital modulator. The ratiometric encoding format of  
the serial digital output is independent of the clock drift errors  
common to most serial modulation techniques such as voltage-  
to-frequency converters. Overall accuracy is ±1.5°C (typical)  
from –25°C to +100°C, with excellent transducer linearity. The  
digital output of the TMP04 is CMOS/TTL compatible, and is  
easily interfaced to the serial inputs of most popular micro-  
processors. The open-collector output of the TMP03 is capable  
of sinking 5 mA. The TMP03 is best suited for systems requiring  
isolated circuits utilizing optocouplers or isolation transformers.  
TMP03/04  
1
2
3
D
V+  
GND  
OUT  
BOTTOM VIEW  
(Not to Scale)  
SO-8 and RU-8 (TSSOP)  
D
NC  
NC  
NC  
NC  
1
2
3
4
8
7
6
5
OUT  
V+  
TMP03/04  
TOP VIEW  
(Not to Scale)  
GND  
NC  
The TMP03 and TMP04 are specified for operation at supply  
voltages from 4.5 V to 7 V. Operating from +5 V, supply current  
(unloaded) is less than 1.3 mA.  
NC = NO CONNECT  
The TMP03/TMP04 are rated for operation over the –40°C to  
+100°C temperature range in the low cost TO-92, SO-8, and  
TSSOP-8 surface mount packages. Operation extends to  
+150°C with reduced accuracy.  
(continued on page 4)  
*Patent pending.  
REV. 0  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, nor for any infringements of patents or other rights of third parties  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
© Analog Devices, Inc., 1995  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 617/329-4700 Fax: 617/326-8703  

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