LM35CAZ Datasheet

IC型號(hào)：
LM35CAZ
PDF描述：
Precision Centigrade Temperature Sensors
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LM35 Precision Centigrade Temperature Sensors

July 1999

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

藲 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

鹵

鈦?/div>

藲C at room

temperature and

鹵

鈦?/div>

藲C over a full 鈭?5 to +150藲C tempera-

ture range. Low cost is assured by trimming and calibration

at the wafer level. The LM35鈥檚 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 碌A(chǔ) from its supply, it has very low

self-heating, less than 0.1藲C in still air. The LM35 is rated to

operate over a 鈭?5藲 to +150藲C temperature range, while the

LM35C is rated for a 鈭?0藲 to +110藲C range (鈭?0藲 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

Calibrated directly in 藲 Celsius (Centigrade)

Linear + 10.0 mV/藲C scale factor

0.5藲C accuracy guaranteeable (at +25藲C)

Rated for full 鈭?5藲 to +150藲C range

Suitable for remote applications

Low cost due to wafer-level trimming

Operates from 4 to 30 volts

Less than 60 碌A(chǔ) current drain

Low self-heating, 0.08藲C in still air

Nonlinearity only

鹵

鈦?/div>

藲C typical

Low impedance output, 0.1

鈩?/div>

for 1 mA load

Typical Applications

DS005516-4

DS005516-3

FIGURE 1. Basic Centigrade Temperature Sensor

(+2藲C to +150藲C)

Choose R

= 鈭扸

/50 碌A(chǔ)

OUT

= +1,500 mV at +150藲C

= +250 mV at +25藲C

= 鈭?50 mV at 鈭?5藲C

FIGURE 2. Full-Range Centigrade Temperature Sensor

TRI-STATE

廬

is a registered trademark of National Semiconductor Corporation.

漏 1999 National Semiconductor Corporation

DS005516

www.national.com

制造商
National Semiconductor (TI)
輸出類(lèi)型
Analog
準(zhǔn)確性
+/- 0.2 C
數(shù)字輸出 - 總線接口
Serial (2-Wire)
最大工作溫度
+ 110 C
最小工作溫度
- 40 C
封裝
Bulk
描述/功能
Temperature Sensor
增益
10 mV / C
工作電源電壓
4 V to 30 V

LM35CAZ相關(guān)型號(hào)PDF文件下載

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描述

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