ADM488

更新时间： 2024-11-23 22:50:03

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	215K
描述
Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers

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数据手册

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ADM488 数据手册

Full-Duplex, Low Power,

Slew Rate Limited, EIA RS-485 Transceivers

ADM488/ADM489

FEATURES

FUNCTIO NAL BLO CK D IAGRAMS

Meets EIA RS-485 Standard

250 kbps Data Rate

Single +5 V ؎ 10% Supply

–7 V to +12 V Bus Com m on-Mode Range

12 k⍀ Input Im pedance

2 kV EFT Protection Meets IEC1000-4-4

High EM Im m unity Meets IEC1000-4-3

Reduced Slew Rate for Low EM Interference

Short Circuit Protection

ADM488

Excellent Noise Im m unity

30 ␮A Supply Current

APPLICATIONS

Low Pow er RS-485 System s

DTE-DCE Interface

ADM489

Packet Sw itching

Local Area Netw orks

Data Concentration

Data Multiplexers

Integrated Services Digital Netw ork (ISDN)

GENERAL D ESCRIP TIO N

T he ADM488 and ADM489 are low power differential line

transceiver suitable for communication on multipoint bus trans-

mission lines.

T he receiver contains a fail-safe feature that results in a logic

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

T he ADM488/ADM489 is fabricated on BiCMOS, an ad-

vanced mixed technology process combining low power CMOS

with fast switching bipolar technology.

T hey are intended for balanced data transmission and comply

with both EIA Standards RS-485 and RS-422. Both products

contains a single differential line driver and a single differential

line receiver making them suitable for full duplex data transfer.

T he ADM488/ADM489 is fully specified over the industrial

temperature range and is available in DIP, SOIC and T SSOP

packages.

T he ADM489 contains an additional receiver and driver enable

control.

T he input impedance is 12 kΩ, allowing 32 transceivers to be

connected on the bus.

T he ADM488/ADM489 operates from a single +5 V ± 10%

power supply. Excessive power dissipation caused by bus con-

tention or by output shorting is prevented by a thermal shut-

down circuit. T his feature forces the driver output into a high

impedance state if during fault conditions a significant tempera-

ture increase is detected in the internal driver circuitry.

REV. 0

Inform ation furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assum ed by Analog Devices for its

use, nor for any infringem ents of patents or other rights of third parties

which m ay result from its use. No license is granted by im plication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 617/ 329-4700

Fax: 617/ 326-8703

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

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与ADM488相关器件

型号	品牌	获取价格	描述	数据表
ADM488_15	ADI	获取价格	Slew Rate Limited, EIA RS-485 Transceivers
ADM488A	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488ABRMZ	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488ABRMZ-REEL7	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488ABRZ	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488ABRZ-REEL7	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488AN	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM488AN	ROCHESTER	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP8, PLASTIC, MS-001BA, DIP-8
ADM488ANZ	ROCHESTER	获取价格	Line Transceiver, 1 Func, 1 Driver, 1 Rcvr, BICMOS, PDIP8, LEAD FREE, PLASTIC, MS-001BA, D
ADM488ANZ	ADI	获取价格	5 V, Slew-Rate Limited, Low Power, 250 kbps, Full Duplex EIA RS-485 Transceiver

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