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ADW75001Z-0REEL7 Datasheet(Arkusz danych) 1 Page - Analog Devices

Numer części ADW75001Z-0REEL7
Szczegółowy opis  Low Voltage Temperature Sensors
Pobierz  20 Pages
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Producent  AD [Analog Devices]
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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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