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TMP04FRU 데이터시트(PDF) 1 Page - Analog Devices |
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TMP04FRU 데이터시트(HTML) 1 Page - Analog Devices |
1 / 16 page FUNCTIONAL BLOCK DIAGRAM DOUT V+ GND 12 3 VPTAT VREF DIGITAL MODULATOR TEMPERATURE SENSOR TMP03/04 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. a Serial Digital Output Thermometers © 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 FEATURES Low Cost 3-Pin Package Modulated Serial Digital Output Proportional to Temperature ±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) APPLICATIONS Isolated Sensors Environmental Control Systems Computer Thermal Monitoring Thermal Protection Industrial Process Control Power System Monitors TMP03/TMP04* PACKAGE TYPES AVAILABLE TO-92 DOUT V+ GND 1 2 3 TMP03/04 BOTTOM VIEW (Not to Scale) SO-8 and RU-8 (TSSOP) 1 2 3 4 8 7 6 5 TOP VIEW (Not to Scale) NC = NO CONNECT TMP03/04 DOUT NC NC NC NC V+ GND NC 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. 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. 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. |
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