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參數(shù)資料
| 型號(hào)： | LM35C |
| 廠商： | National Semiconductor Corporation |
| 元件分類(lèi)： | 溫度/濕度傳感器 |
| 英文描述： | Precision Centigrade Temperature Sensors |
| 中文描述： | 精密攝氏溫度傳感器 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 300K |
| 代理商： | LM35C |
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LM35
Precision Centigrade Temperature Sensors
General Description
The LM35 series are precision integrated-circuit temperature
sensors, whose output voltage is linearly proportional to the
Celsius (Centigrade) temperature. The LM35 thus has an
advantage over linear temperature sensors calibrated in
Kelvin, as the user is not required to subtract a large con-
stant voltage from its output to obtain convenient Centigrade
scaling. The LM35 does not require any external calibration
or trimming to provide typical accuracies of
±
1
4
C at room
temperature and
±
3
4
C over a full 55 to +150C tempera-
ture range. Low cost is assured by trimming and calibration
at the wafer level. The LM35’s low output impedance, linear
output, and precise inherent calibration make interfacing to
readout or control circuitry especially easy. It can be used
with single power supplies, or with plus and minus supplies.
As it draws only 60 μA from its supply, it has very low
self-heating, less than 0.1C in still air. The LM35 is rated to
operate over a 55 to +150C temperature range, while the
LM35C is rated for a 40 to +110C range (10 with im-
proved accuracy). The LM35 series is available packaged in
hermetic TO-46 transistor packages, while the LM35C,
LM35CA, and LM35D are also available in the plastic TO-92
transistor package. The LM35D is also available in an 8-lead
surface mount small outline package and a plastic TO-220
package.
Features
n
Calibrated directly in Celsius (Centigrade)
n
Linear + 10.0 mV/C scale factor
n
0.5C accuracy guaranteeable (at +25C)
n
Rated for full 55 to +150C range
n
Suitable for remote applications
n
Low cost due to wafer-level trimming
n
Operates from 4 to 30 volts
n
Less than 60 μA current drain
n
Low self-heating, 0.08C in still air
n
Nonlinearity only
±
1
4
C typical
n
Low impedance output, 0.1
for 1 mA load
Typical Applications
TRI-STATE
is a registered trademark of National Semiconductor Corporation.
DS005516-3
FIGURE 1. Basic Centigrade Temperature Sensor
(+2C to +150C)
DS005516-4
Choose R
= V
/50 μA
V
OUT
=+1,500 mV at +150C
= +250 mV at +25C
= 550 mV at 55C
FIGURE 2. Full-Range Centigrade Temperature Sensor
July 1999
L
1999 National Semiconductor Corporation
DS005516
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LM35CH | Precision Centigrade Temperature Sensors |
| LM35CZ | Precision Centigrade Temperature Sensors |
| LM35CA | Precision Centigrade Temperature Sensors |
| LM35CAH | Precision Centigrade Temperature Sensors |
| LM35CAZ | Precision Centigrade Temperature Sensors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM35CA | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:Precision Centigrade Temperature Sensors |
| LM35CAH | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類(lèi)型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM35CAH | 制造商:Texas Instruments 功能描述:IC PRECISION TEMP SENSOR TO-46-3 |
| LM35CAH/A+ | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Temperature Transducer/Sensor |
| LM35CAH/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類(lèi)型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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