TMP36GT9

a 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 Low Voltage Temperature Sensors TMP35/TMP36/TMP37 FUNCTIONAL BLOCK DIAGRAM +Vs (2.7V to 5.5V) TMP35 SHUTDOWN TMP36 TMP37 VOUT PACKAGE TYPES AVAILABLE RT-5 (SOT-23) VOUT 1 +VS 2 NC 3 TOP VIEW (Not to Scale) 4 SHUTDOWN 5 GND PRODUCT DESCRIPTION NC = NO CONNECT 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) 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 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 funct...