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AD590JRZ-RL PDF预览

AD590JRZ-RL

更新时间: 2024-01-30 04:16:00
品牌 Logo 应用领域
亚德诺 - ADI 传感器换能器温度传感器
页数 文件大小 规格书
16页 346K
描述
2-Terminal IC Temperature Transducer

AD590JRZ-RL 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

AD590JRZ-RL 数据手册

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2-Terminal IC  
Temperature Transducer  
AD590  
FEATURES  
PIN CONFIGURATIONS  
Linear current output: 1 μA/K  
Wide temperature range: −55°C to +150°C  
Probe-compatible ceramic sensor package  
2-terminal device: voltage in/current out  
Laser trimmed to 0.5°C calibration accuracy (AD590M)  
Excellent linearity: 0.3°C over full range (AD590M)  
Wide power supply range: 4 V to 30 V  
Sensor isolation from case  
NC  
V+  
V–  
NC  
1
2
3
4
8
7
6
5
NC  
NC  
NC  
NC  
TOP VIEW  
(Not to Scale)  
NC = NO CONNECT  
+
Low cost  
Figure 1. 2-Lead FLATPACK  
Figure 2. 8-Lead SOIC  
GENERAL DESCRIPTION  
The AD590 is a 2-terminal integrated circuit temperature trans-  
ducer that produces an output current proportional to absolute  
temperature. For supply voltages between 4 V and 30 V, the device  
acts as a high impedance, constant current regulator passing  
1 μA/K. Laser trimming of the chip’s thin-film resistors is used  
to calibrate the device to 298.2 μA output at 298.2 K (25°C).  
+
Figure 3. 3-Pin TO-52  
The AD590 should be used in any temperature-sensing  
application below 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 situations.  
Linearization circuitry, precision voltage amplifiers, resistance  
measuring circuitry, and cold junction compensation are not  
needed in applying the AD590.  
PRODUCT HIGHLIGHTS  
1. The AD590 is a calibrated, 2-terminal temperature sensor  
requiring only a dc voltage supply (4 V to 30 V). Costly  
transmitters, filters, lead wire compensation, and lineari-  
zation circuits are all unnecessary in applying the device.  
2. State-of-the-art laser trimming at the wafer level in  
conjunction with extensive final testing ensures that  
AD590 units are easily interchangeable.  
In addition to temperature measurement, applications include  
temperature compensation or correction of discrete components,  
biasing proportional to absolute temperature, flow rate measure-  
ment, level detection of fluids and anemometry. The AD590 is  
available in chip form, making it suitable for hybrid circuits and  
fast temperature measurements in protected environments.  
3. Superior interface rejection occurs because the output is a  
current rather than a voltage. In addition, power  
requirements are low (1.5 mW @ 5 V @ 25°C). These  
features make the AD590 easy to apply as a remote sensor.  
4. The high output impedance (>10 MΩ) provides excellent  
rejection of supply voltage drift and ripple. For instance,  
changing the power supply from 5 V to 10 V results in only  
a 1 μA maximum current change, or 1°C equivalent error.  
The AD590 is particularly useful in remote sensing applications.  
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 at 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.  
5. The AD590 is electrically durable: it withstands a forward  
voltage of up to 44 V and a reverse voltage of 20 V.  
Therefore, supply irregularities or pin reversal does not  
damage the device.  
Rev. E  
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 that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
www.analog.com  
Fax: 781.461.3113 ©2006–2009 Analog Devices, Inc. All rights reserved.  
 

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