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AD590

更新时间： 2024-01-20 00:29:08
品牌 Logo 应用领域
英特矽尔 - INTERSIL 传感器温度传感器
页数 文件大小 规格书
10页 99K
描述
2-Wire, Current Output Temperature Transducer

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中文翻译

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AD590 技术参数

生命周期：Obsolete包装说明：,
Reach Compliance Code：unknownHTS代码：8542.39.00.01
风险等级：5.84Base Number Matches：1

AD590 数据手册

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AD590  
2-Wire, Current Output  
Temperature Transducer  
August 1997  
Features  
Description  
o
The AD590 is an integrated-circuit temperature transducer  
which produces an output current proportional to absolute tem-  
perature. The device acts as a high impedance constant current  
• Linear Current Output . . . . . . . . . . . . . . . . . . . . 1µA/ K  
o
o
• Wide Temperature Range . . . . . . . . . . . -55 C to 150 C  
• Two-Terminal Device Voltage In/Current Out  
• Wide Power Supply Range . . . . . . . . . . . . .+4V to +30V  
• Sensor Isolation From Case  
o
regulator, passing 1µA/ K for supply voltages between +4V and  
+30V. Laser trimming of the chip's thin film resistors is used to  
calibrate the device to 298.2µA output at 298.2 K (25 C).  
o
o
The AD590 should be used in any temperature-sensing  
o
o
application between -55 C to 150 C in which conventional  
electrical temperature sensors are currently employed. The  
inherent low cost of a monolithic integrated circuit combined  
with the elimination of support circuitry makes the AD590 an  
attractive alternative for many temperature measurement sit-  
uations. Linearization circuitry, precision voltage amplifiers,  
resistance measuring circuitry and cold junction compensa-  
tion are not needed in applying the AD590. In the simplest  
application, a resistor, a power source and any voltmeter can  
be used to measure temperature.  
• Low Cost  
Ordering Information  
NON-  
PART  
LINEARITY TEMP. RANGE  
PKG.  
NO.  
o
o
NUMBER  
( C)  
( C)  
PACKAGE  
AD590IH  
±3.0  
±1.5  
-55 to 150  
-55 to 150  
3 Ld Metal Can T3.A  
(TO-52)  
AD590JH  
3 Ld Metal Can T3.A  
(TO-52)  
In addition to temperature measurement, applications include  
temperature compensation or correction of discrete  
components, and biasing proportional to absolute temperature.  
The AD590 is particularly useful in remote sensing applica-  
tions. The device is insensitive to voltage drops over long  
lines due to its high-impedance current output. Any well  
insulated twisted pair is sufficient for operation hundreds of  
feet from the receiving circuitry. The output characteristics  
also make the AD590 easy to multiplex: the current can be  
switched by a CMOS multiplexer or the supply voltage can  
be switched by a logic gate output.  
Pinout  
Functional Diagram  
+
AD590  
(METAL CAN)  
R1 260Ω R2 1040Ω  
Q5  
Q3  
Q2  
+
Q1  
Q4  
1
Q6  
CASE  
3
C1 26pF  
Q12  
Q7  
Q8  
2
-
CHIP  
SUBSTRATE  
R3 5kΩ  
R4 11kΩ  
Q10  
Q9  
8
Q11  
1
1
R6 820Ω  
R5 146Ω  
-
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
File Number 3171.1  
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999  
12-3  
1234567...10

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