AD595CD

更新时间： 2024-11-06 22:49:59

品牌	Logo	应用领域
亚德诺 - ADI		仪表放大器放大器电路
页数	文件大小	规格书
8页	140K
描述
Monolithic Thermocouple Amplifiers with Cold Junction Compensation

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AD595CD 数据手册

Monolithic Thermocouple Amplifiers

with Cold Junction Compensation

AD594/AD595

FUNCTIONAL BLOCK DIAGRAM

FEATURES

Pretrimmed for Type J (AD594) or

Type K (AD595) Thermocouples

–IN

–ALM +ALM

13 12

V+

COMP

Can Be Used with Type T Thermocouple Inputs

Low Impedance Voltage Output: 10 mV/؇C

Built-In Ice Point Compensation

Wide Power Supply Range: +5 V to ؎15 V

Low Power: <1 mW typical

OVERLOAD

DETECT

AD594/AD595

Thermocouple Failure Alarm

Laser Wafer Trimmed to 1؇C Calibration Accuracy

Setpoint Mode Operation

Self-Contained Celsius Thermometer Operation

High Impedance Differential Input

Side-Brazed DIP or Low Cost Cerdip

ICE

POINT

COMP.

–TC

+TC

+IN

COM

–T

–C

V–

PRODUCT DESCRIPTION

are available at the package pins so that the circuit can be

recalibrated for the thermocouple types by the addition of two

or three resistors. These terminals also allow more precise cali-

bration for both thermocouple and thermometer applications.

The AD594/AD595 is a complete instrumentation amplifier and

thermocouple cold junction compensator on a monolithic chip.

It combines an ice point reference with a precalibrated amplifier

to produce a high level (10 mV/°C) output directly from a ther-

mocouple signal. Pin-strapping options allow it to be used as a

linear amplifier-compensator or as a switched output setpoint

controller using either fixed or remote setpoint control. It can

be used to amplify its compensation voltage directly, thereby

converting it to a stand-alone Celsius transducer with a low

impedance voltage output.

The AD594/AD595 is available in two performance grades. The

C and the A versions have calibration accuracies of ±1°C and

±3°C, respectively. Both are designed to be used from 0°C to

+50°C, and are available in 14-pin, hermetically sealed, side-

brazed ceramic DIPs as well as low cost cerdip packages.

PRODUCT HIGHLIGHTS

The AD594/AD595 includes a thermocouple failure alarm that

indicates if one or both thermocouple leads become open. The

alarm output has a flexible format which includes TTL drive

capability.

1. The AD594/AD595 provides cold junction compensation,

amplification, and an output buffer in a single IC package.

2. Compensation, zero, and scale factor are all precalibrated by

laser wafer trimming (LWT) of each IC chip.

The AD594/AD595 can be powered from a single ended supply

(including +5 V) and by including a negative supply, tempera-

tures below 0°C can be measured. To minimize self-heating, an

unloaded AD594/AD595 will typically operate with a total sup-

ply current 160 µA, but is also capable of delivering in excess of

±5 mA to a load.

3. Flexible pinout provides for operation as a setpoint control-

ler or a stand-alone temperature transducer calibrated in

degrees Celsius.

4. Operation at remote application sites is facilitated by low

quiescent current and a wide supply voltage range +5 V to

dual supplies spanning 30 V.

The AD594 is precalibrated by laser wafer trimming to match

the characteristic of type J (iron-constantan) thermocouples and

the AD595 is laser trimmed for type K (chromel-alumel) inputs.

The temperature transducer voltages and gain control resistors

5. Differential input rejects common-mode noise voltage on the

thermocouple leads.

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

12 3 4 5 6 7 8

中文翻译

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AD595CD 替代型号

型号	品牌	替代类型	描述	数据表
AD595CDZ	ADI	完全替代	Monolithic Thermocouple Amplifiers
AD595ADZ	ADI	类似代替	Monolithic Thermocouple Amplifiers with Cold Junction Compensation
AD595AQ	ADI	类似代替	Monolithic Thermocouple Amplifiers with Cold Junction Compensation

与AD595CD相关器件

型号	品牌	获取价格	描述	数据表
AD595CDZ	ADI	获取价格	Monolithic Thermocouple Amplifiers
AD595CQ	ADI	获取价格	Monolithic Thermocouple Amplifiers with Cold Junction Compensation
AD596	ADI	获取价格	Thermocouple Conditioner and Setpoint Controller
AD596*	ETC	获取价格	Thermocouple Conditioner and Setpoint Controller
AD-5960S	BOTHHAND	获取价格	ADSL LINE TRANSFORMER
AD-5961S	BOTHHAND	获取价格	ADSL LINE TRANSFORMER
AD5962-9313001MPA	ADI	获取价格	IC 1 CHANNEL, VIDEO AMPLIFIER, CDIP8, Audio/Video Amplifier
AD596AH	ADI	获取价格	Thermocouple Conditioner and Setpoint Controller
AD596AH	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, MBCY10, METAL CAN, TO-100, 10 PIN
AD596AHZ	ROCHESTER	获取价格	SPECIALTY ANALOG CIRCUIT, MBCY10, METAL CAN, TO-100, 10 PIN

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