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參數(shù)資料
| 型號： | ADT45 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Low Voltage SOT-23 Temperature Sensors(低壓溫度傳感器) |
| 中文描述： | 低壓SOT - 23封裝溫度傳感器（低壓溫度傳感器） |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 168K |
| 代理商： | ADT45 |
REV. 0
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADT45/ADT50
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 1997
LowVoltage SOT-23
Temperature Sensors
FUNCT IONAL BLOCK DIAGRAM
+Vs (2.7V to 12V)
V
OUT
ADT45
ADT50
PACKAGE T YPE S AVAILABLE
SOT -23
3
GND
1
2
TOP VIEW
(Not to Scale)
+V
S
V
OUT
FEATURES
Low Voltage Operation (2.7 V to 12 V)
Calibrated Directly in
8
C
10 mV/
8
C Scale Factor
6
2
8
C Accuracy Over Temperature (typ)
6
0.5
8
C Linearity (typ)
Stable with Large Capacitive Loads
Specified –40
8
C to +125
8
C, Operation to +150
8
C
Less than 60 mA Quiescent Current
Low Self-Heating
APPLICATIONS
Environmental Control Systems
Thermal Protection
Industrial Process Control
Fire Alarms
Power System Monitors
CPU Thermal Management
GE NE RAL DE SCRIPT ION
T he ADT 45 and ADT 50 are low voltage, precision centigrade
temperature sensors. T hey provide a voltage output that is lin-
early proportional to the Celsius (Centigrade) temperature. T he
ADT 45/ADT 50 do not require any external calibration to pro-
vide typical accuracies of
±
1
°
C at +25
°
C and
±
2
°
C over the
–40
°
C to +125
°
C temperature range. T he low output imped-
ance of the ADT 45/ADT 50, linear output and precise calibra-
tion simplify interfacing to temperature control circuitry and
A/D converters. All three devices are intended for single supply
operation from 2.7 V to 12 V maximum. Supply current runs
well below 60
μ
A providing very low self-heating—less than
0.1
°
C in still air. T he ADT 45/ADT 50 are functionally and pin
compatible with LM45/LM50 respectively. T he ADT 45 pro-
vides a 250 mV output at +25
°
C and reads temperature from
0
°
C to +100
°
C. T he ADT 50 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. Both the ADT 45 and ADT 50 have
an output scale factor of +10 mV/
°
C. Operation extends to
+150
°
C with reduced accuracy for all devices when operating
from a 12 V supply.
T he ADT 45/ADT 50 are available in the low cost 3-lead
SOT -23 surface mount package.
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