TMP36GRT View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
TMP36GRT Datasheet PDF : 16 Pages
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a
Low Voltage Temperature Sensors
TMP35/TMP36/TMP37
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.
FUNCTIONAL BLOCK DIAGRAM
+Vs (2.7V to 5.5V)
SHUTDOWN
TMP35/
TMP36/
TMP37
VOUT
PACKAGE TYPES AVAILABLE
RT-5 (SOT-23)
VOUT 1
5 GND
+VS 2 TOP VIEW
(Not to Scale)
NC 3
4 SHUTDOWN
NC = NO CONNECT
RN-8 (SOIC)
VOUT 1
8 +VS
NC 2
7 NC
TOP VIEW
NC 3 (Not to Scale) 6 NC
GND 4
5 SHUTDOWN
NC = NO CONNECT
TO-92
123
BOTTOM VIEW
(Not to Scale)
PIN 1, +Vs; PIN 2, VOUT; PIN 3, GND
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.
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
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