AD590KR

更新时间： 2024-11-22 22:38:59

品牌	Logo	应用领域
亚德诺 - ADI		传感器温度传感器
页数	文件大小	规格书
16页	629K
描述
Two-Twrminal IC Temperature Transducer

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AD590KR 数据手册

Two-Terminal IC

Temperature Transducer

AD590

FLATPACK

TO-52

–

SOIC-8

FEATURES

Linear current output: 1 µA/K

V+

V–

TOP VIEW

(Not to Scale)

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 = NO CONNECT

–

Low cost

Figure 1. Pin Designations

GENERAL DESCRIPTION

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.

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).

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

linearization circuits are all unnecessary in applying the

device.

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.

2. State-of-the-art laser trimming at the wafer level in

conjunction with extensive final testing ensures that

AD590 units are easily interchangeable.

3. Superior interface rejection occurs, because the output is a

current rather than a voltage. In addition, power

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.

requirements are low (1.5 mWs @ 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.

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.

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

Rev. C

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

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.326.8703

www.analog.com

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AD590KR 替代型号

型号	品牌	替代类型	描述	数据表
AD590KRZ-RL	ADI	完全替代	2-Terminal IC Temperature Transducer
AD590JRZ	ADI	类似代替	2-Terminal IC Temperature Transducer

与AD590KR相关器件

型号	品牌	获取价格	描述	数据表
AD590KR-REEL	ADI	获取价格	Two-Twrminal IC Temperature Transducer
AD590KRZ	ADI	获取价格	2-Terminal IC Temperature Transducer
AD590KRZ-REEL	ADI	获取价格	Analog Temperature Sensor, ANALOG TEMP SENSOR-CURRENT, 298.2uA, RECTANGULAR, SURFACE MOUNT
AD590KRZ-RL	ADI	获取价格	2-Terminal IC Temperature Transducer
AD590KZR	RENESAS	获取价格	ANALOG TEMP SENSOR-CURRENT, 298.2uA, RECTANGULAR, THROUGH HOLE MOUNT, TO-92, 3 PIN
AD590L	ADI	获取价格	Two-Terminal IC Temperature Transducer
AD590LF	ADI	获取价格	Two-Terminal IC Temperature Transducer
AD590LF/+	ETC	获取价格	Temperature Transducer/Sensor
AD590LF/883B	ADI	获取价格	2-Terminal IC Temperature Transducer
AD590LH	ADI	获取价格	Two-Terminal IC Temperature Transducer

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