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ADM489ABRZ

更新时间： 2024-09-25 06:36:19

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	232K
描述
Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers

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数据手册
替代型号

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ADM489ABRZ 数据手册

Full-Duplex, Low Power,

Slew Rate Limited, EIA RS-485 Transceivers

ADM488A/ADM489A

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Complies with ANSI TIA/EIA-485-A-1998 and

ISO 8482: 1987(E)

250 kbps data rate

ADM488A

Single 5 V 10% supply

−7 V to +12 V bus common-mode range

Connect up to 32 nodes on the bus

Reduced slew rate for low EM interference

Short-circuit protection

30 μA supply current

Figure 1. ADM488A

APPLICATIONS

ADM489A

Low power RS-485 and RS-422 systems

DTE-DCE interface

Packet switching

Local area networks

Data concentration

Data multiplexers

Integrated services digital network (ISDN)

Figure 2. ADM489A

GENERAL DESCRIPTION

Excessive power dissipation that is caused by bus contention or

output shorting is prevented by a thermal shutdown circuit. This

feature forces the driver output into a high impedance state if,

during fault conditions, a significant temperature increase is

detected in the internal driver circuitry.

The ADM488A and ADM489A are low power, differential line

transceivers suitable for communication on multipoint bus

transmission lines. They are intended for balanced data

transmission and comply with both RS-485 and RS-422

standards of the Electronics Industries Association (EIA). Both

products contain a single differential line driver and a single

differential line receiver, making them suitable for full-duplex

data transfer. The ADM489A contains an additional receiver

and driver enable control.

The receiver contains a fail-safe feature that results in a logic

high output state if the inputs are unconnected (floating).

The ADM488A/ADM489A are fabricated on BiCMOS, an

advanced mixed technology process combining low power

CMOS with fast switching bipolar technology.

The input impedance is 12 kΩ, allowing 32 transceivers to be

connected on the bus. The ADM488A/ADM489A operate from

a single 5 V 10% power supply.

The ADM488A/ADM489A are fully specified over the industrial

temperature range and are available in SOIC and MSOP packages.

Rev. 0

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 are theproperty 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

www.analog.com

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中文翻译

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ADM489ABRZ 替代型号

型号	品牌	替代类型	描述	数据表
ADM489ARZ	ADI	完全替代	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM489ABRZ-REEL7	ADI	类似代替	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers

与ADM489ABRZ相关器件

型号	品牌	获取价格	描述	数据表
ADM489ABRZ-REEL7	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM489AN	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM489ANZ	ADI	获取价格	5 V, Slew-Rate Limited, Low Power, 250 kbps, Full Duplex EIA RS-485 Transceiver (with DE/R
ADM489ANZ	ROCHESTER	获取价格	LINE TRANSCEIVER, PDIP14, LEAD FREE, PLASTIC, MS-001AA, DIP-14
ADM489AR	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM489AR	ROCHESTER	获取价格	LINE TRANSCEIVER, PDSO14, MS-012AB, SOIC-14
ADM489AR-REEL	ADI	获取价格	5 V, Slew-Rate Limited, Low Power, 250 kbps, Full Duplex EIA RS-485 Transceiver (with DE/R
ADM489ARU	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM489ARU-REEL7	ROCHESTER	获取价格	LINE TRANSCEIVER, PDSO16, MO-153AB, TSSOP-16
ADM489ARUZ	ADI	获取价格	5 V, Slew-Rate Limited, Low Power, 250 kbps, Full Duplex EIA RS-485 Transceiver (with DE/R

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