AD590

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公司名称北京华夏日盛科技有限公司
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所在地北京市
厂商性质生产厂家
更新时间2024/11/7 9:47:25
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根据客户要求，配置数显仪表、刻度仪表、继电器、接触器，各种封装形式的NTC\PT100\PT1000\ DS18B20等热敏电阻、热电阻、热电耦，配置各种绝缘导线、防水导线、屏蔽导线、高温导线等。根据客户要求封装各类温度传感器、热电偶，供应各种芯片、热敏电阻。包括：NTC热敏电阻、pt100\pt1000铂电阻、DS18B20、AD590等。同时供应各种温度仪表。
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专业从事开发、生产、销售温度传感器系列产品，专注于各行业、领域温度测控方案解决。

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AD590400)this

AD590 产品信息

AD590

产品说明：

FEATURES
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
Low cost
GENERAL DESCRIPTION
The AD590 is a 2-terminal integrated circuit temperature transducer 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).
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.
In addition to temperature measurement, applications include temperature compensation or correction of discrete components, biasing proportional to absolute temperature, flow rate measurement, 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.
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.