AD590KRZ Analog Devices Inc, AD590KRZ Datasheet

IC,TEMPERATURE SENSOR,BIPOLAR/JFET,SOP,8PIN,PLASTIC

AD590KRZ

Manufacturer Part Number

AD590KRZ

Description

IC,TEMPERATURE SENSOR,BIPOLAR/JFET,SOP,8PIN,PLASTIC

Manufacturer

Analog Devices Inc

Datasheet

1.AD590JH.pdf (16 pages)

Specifications of AD590KRZ

Rohs Compliant

YES

Sensing Temperature

-55°C ~ 150°C

Output Type

Current

Voltage - Supply

4 V ~ 30 V

Accuracy

±2.5°C

Package / Case

8-SOIC (0.154", 3.90mm Width)

Temperature Sensor Function

Temp Sensor

Package Type

SOIC N

Operating Temperature (min)

-55

Operating Temperature (max)

150C

Operating Temperature Classification

Military

Operating Supply Voltage (min)

Operating Supply Voltage (typ)

5/9/12/15/18/24V

Operating Supply Voltage (max)

30V

Peak Reflow Compatible (260 C)

Yes

Temperature Sensing Range

-55Â°C To +125Â°C

Supply Voltage Range

4V To 30V

Resolution (bits)

8bit

Sensor Case Style

SOIC

No. Of Pins

Leaded Process Compatible

Yes

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Meier Automation Equipment Co., Limited

Part Number:

AD590KRZ

Manufacturer:

ADI/亚德诺

Quantity:

20 000

Current page: 1 of 16
Download datasheet (340Kb)

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 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).

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 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.

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.

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 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: 781.461.3113

PRODUCT HIGHLIGHTS

Figure 1. 2-Lead FLATPACK

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.

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

conjunction with extensive final testing ensures that

AD590 units are easily interchangeable.

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.

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 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.

Figure 3. 3-Pin TO-52

Temperature Transducer

–

PIN CONFIGURATIONS

2-Terminal IC

V+

V–

Figure 2. 8-Lead SOIC

NC = NO CONNECT

(Not to Scale)

TOP VIEW

www.analog.com

AD590

Related parts for AD590KRZ

AD590KRZ Summary of contents

Page 1

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 ...

Page 2

AD590 TABLE OF CONTENTS Features .............................................................................................. 1 General Description ......................................................................... 1 Pin Configurations ........................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 AD590J and AD590K Specifications ......................................... 3 AD590L and AD590M Specifications ....................................... 4 Absolute Maximum ...

Page 3

SPECIFICATIONS AD590J AND AD590K SPECIFICATIONS 25°C and unless otherwise noted. S Table 1. Parameter POWER SUPPLY Operating Voltage Range OUTPUT Nominal Current Output @ 25°C (298.2K) Nominal Temperature Coefficient Calibration Error @ 25°C Absolute Error (Over ...

Page 4

AD590 AD590L AND AD590M SPECIFICATIONS 25°C and unless otherwise noted. S Table 2. Parameter POWER SUPPLY Operating Voltage Range OUTPUT Nominal Current Output @ 25°C (298.2K) Nominal Temperature Coefficient Calibration Error @ 25°C Absolute Error (Over ...

Page 5

ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Forward Voltage ( E+ or E−) Reverse Voltage (E+ to E−) Breakdown Voltage (Case E+ or E−) 1 Rated Performance Temperature Range 1 Storage Temperature Range Lead Temperature (Soldering, 10 sec) 1 The AD590 ...

Page 6

AD590 PRODUCT DESCRIPTION The AD590 is a 2-terminal temperature-to-voltage transducer available in a variety of accuracy grades and packages. When using the AD590 in die form, the chip substrate must be kept electrically isolated (floating) for correct circuit ...

Page 7

EXPLANATION OF TEMPERATURE SENSOR SPECIFICATIONS The way in which the AD590 is specified makes it easy to apply wide variety of applications important to understand the meaning of the various specifications and the effects of ...

Page 8

AD590 1.6 0.8 0 0.8°C MAX –0.8 –1.6 –55 TEMPERATURE (°C) Figure 11. Nonlinearity Figure 12 shows a circuit in which the nonlinearity is the major contributor to error over temperature. The circuit is trimmed by adjusting R1 for a ...

Page 9

Table 4. Thermal Resistance θ + θ (°C/Watt) Medium H F Aluminum Block Stirred Oil 42 60 Moving Air 3 With Heat Sink 45 – Without Heat Sink 115 190 Still Air With Heat Sink ...

Page 10

AD590 GENERAL APPLICATIONS Figure 16 demonstrates the use of a low cost digital panel meter for the display of temperature on either the Kelvin, Celsius, or Fahrenheit scales. For Kelvin temperature, Pin 9, Pin 4, and Pin 2 are grounded; ...

Page 11

Figure example of a current transmitter designed to be used with kΩ systems; it uses its full current range for a narrow span of measured temperatures. In this example, ...

Page 12

AD590 CMOS analog multiplexers can also be used to switch AD590 current. Due to the AD590’s current mode, the resistance of such switches is unimportant as long maintained across the transducer. Figure 24 shows a circuit ...

Page 13

OUTLINE DIMENSIONS 0.019 (0.48) 0.017 (0.43) 0.015 (0.38) 0.055 (1.40) 0.050 (1.27) 0.045 (1.14) 0.030 (0.76) MAX CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN ...

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AD590KRZ Analog Devices Inc, AD590KRZ Datasheet

AD590KRZ

Specifications of AD590KRZ

Available stocks

Related parts for AD590KRZ

AD590KRZ Summary of contents

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