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參數(shù)資料
| 型號(hào)： | LM45CIM3/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | LM45 SOT-23 Precision Centigrade Temperature Sensors; Package: SOT-23; No of Pins: 3; Qty per Container: 1000/Reel |
| 中文描述： | ANALOG TEMP SENSOR-VOLTAGE, -.2-1V, 4Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | SOT-23, 3 PIN |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大小： | 652K |
| 代理商： | LM45CIM3/NOPB |
LM45
SOT-23 Precision Centigrade Temperature Sensors
General Description
The LM45 series are precision integrated-circuit temperature
sensors, whose output voltage is linearly proportional to the
Celsius (Centigrade) temperature. The LM45 does not re-
quire any external calibration or trimming to provide accura-
cies of ±2C at room temperature and ±3C over a full 20 to
+100C temperature range. Low cost is assured by trimming
and calibration at the wafer level. The LM45’s low output
impedance, linear output, and precise inherent calibration
make interfacing to readout or control circuitry especially
easy. It can be used with a single power supply, or with plus
and minus supplies. As it draws only 120 A from its supply,
it has very low self-heating, less than 0.2C in still air. The
LM45 is rated to operate over a 20 to +100C temperature
range.
Applications
n
Battery Management
n
FAX Machines
n
Printers
n
Portable Medical Instruments
n
HVAC
n
Power Supply Modules
n
Disk Drives
n
Computers
n
Automotive
Features
n
Calibrated directly in Celsius (Centigrade)
n
Linear + 10.0 mV/C scale factor
n ±
3C accuracy guaranteed
n
Rated for full 20 to +100C range
n
Suitable for remote applications
n
Low cost due to wafer-level trimming
n
Operates from 4.0V to 10V
n
Less than 120 A current drain
n
Low self-heating, 0.20C in still air
n
Nonlinearity only ±0.8C max over temp
n
Low impedance output, 20
for 1 mA load
Connection Diagram
SOT-23
01175401
Top View
See NS Package Number mf03a
Order
Device
Number
Top Mark
Supplied As
LM45BIM3
T4B
1000 Units on Tape and Reel
LM45BIM3X
T4B
3000 Units on Tape and Reel
LM45CIM3
T4C
1000 Units on Tape and Reel
LM45CIM3X
T4C
3000 Units on Tape and Reel
August 2005
LM45
SOT
-23
Precision
Centigrade
T
emperature
Sensors
2005 National Semiconductor Corporation
DS011754
www.national.com
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