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TMP36GS-REEL Fiches technique(PDF) 1 Page - Analog Devices |
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TMP36GS-REEL Fiches technique(HTML) 1 Page - Analog Devices |
1 / 20 page Low Voltage Temperature Sensors TMP35/TMP36/TMP37 Rev. F Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©1996–2010 Analog Devices, Inc. All rights reserved. FEATURES Low voltage operation (2.7 V to 5.5 V) Calibrated directly in °C 10 mV/°C scale factor (20 mV/°C on TMP37) ±2°C accuracy over temperature (typ) ±0.5°C linearity (typ) Stable with large capacitive loads Specified −40°C to +125°C, operation to +150°C Less than 50 μA quiescent current Shutdown current 0.5 μA max Low self-heating Qualified for automotive applications APPLICATIONS Environmental control systems Thermal protection Industrial process control Fire alarms Power system monitors CPU thermal management GENERAL DESCRIPTION The TMP35/TMP36/TMP37 are low voltage, precision centi- grade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius (centigrade) temperature. The TMP35/ TMP36/TMP37 do not require any external calibration to provide typical accuracies of ±1°C at +25°C and ±2°C over the −40°C to +125°C temperature range. The low output impedance of the TMP35/TMP36/TMP37 and its linear output and precise calibration simplify interfacing to temperature control circuitry and ADCs. All three devices are intended for single-supply operation from 2.7 V to 5.5 V maxi- mum. The supply current runs well below 50 μA, providing very low self-heating—less than 0.1°C in still air. In addition, a shutdown function is provided to cut the supply current to less than 0.5 μA. FUNCTIONAL BLOCK DIAGRAM +VS (2.7V TO 5.5V) VOUT SHUTDOWN TMP35/ TMP36/ TMP37 Figure 1. PIN CONFIGURATIONS 1 2 3 5 4 TOP VIEW (Not to Scale) NC = NO CONNECT VOUT SHUTDOWN GND NC +VS Figure 2. RJ-5 (SOT-23) 1 2 3 4 8 7 6 5 TOP VIEW (Not to Scale) NC = NO CONNECT VOUT SHUTDOWN NC NC +VS NC NC GND Figure 3. R-8 (SOIC_N) 1 3 2 BOTTOM VIEW (Not to Scale) PIN 1, +VS; PIN 2, VOUT; PIN 3, GND Figure 4. T-3 (TO-92) The TMP35 is functionally compatible with the LM35/LM45 and provides a 250 mV output at 25°C. The TMP35 reads temperatures from 10°C to 125°C. The TMP36 is specified from −40°C to +125°C, provides a 750 mV output at 25°C, and operates to 125°C from a single 2.7 V supply. The TMP36 is functionally compatible with the LM50. Both the TMP35 and TMP36 have an output scale factor of 10 mV/°C. The TMP37 is intended for applications over the range of 5°C to 100°C and provides an output scale factor of 20 mV/°C. The TMP37 provides a 500 mV output at 25°C. Operation extends to 150°C with reduced accuracy for all devices when operating from a 5 V supply. The TMP35/TMP36/TMP37 are available in low cost 3-lead TO-92, 8-lead SOIC_N, and 5-lead SOT-23 surface-mount packages. |
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