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TMP36GT9 Datasheet(PDF) 1 Page - Analog Devices |
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TMP36GT9 Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page REV. C 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 that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a TMP35/TMP36/TMP37 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2002 Low Voltage Temperature Sensors FUNCTIONAL BLOCK DIAGRAM +Vs (2.7V to 5.5V) VOUT SHUTDOWN TMP35/ TMP36/ TMP37 PACKAGE TYPES AVAILABLE RT-5 (SOT-23) 1 2 3 5 4 TOP VIEW (Not to Scale) NC = NO CONNECT VOUT SHUTDOWN GND NC +VS RN-8 (SOIC) 1 2 3 4 8 7 6 5 TOP VIEW (Not to Scale) NC = NO CONNECT VOUT SHUTDOWN NC NC +VS NC NC GND TO-92 1 3 2 BOTTOM VIEW (Not to Scale) PIN 1, +Vs; PIN 2, VOUT; PIN 3, GND 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 A Quiescent Current Shutdown Current 0.5 A Max Low Self-Heating APPLICATIONS Environmental Control Systems Thermal Protection Industrial Process Control Fire Alarms Power System Monitors CPU Thermal Management PRODUCT DESCRIPTION The TMP35, TMP36, and TMP37 are low voltage, precision centigrade temperature sensors. They provide a voltage output that is linearly proportional to the Celsius (Centigrade) tem- perature. 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 A/D converters. All three devices are intended for single-supply operation from 2.7 V to 5.5 V maximum. 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 supply current to less than 0.5 µA. 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 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 all available in low cost 3-lead TO-92, SOIC-8, and 5-lead SOT-23 surface-mount packages. |
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