Datasheet > ADM488_15

ADM488_15

更新时间： 2024-11-25 01:21:55

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
16页	386K
描述
Slew Rate Limited, EIA RS-485 Transceivers

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ADM488_15 数据手册

Full-Duplex, Low Power,

Slew Rate Limited, EIA RS-485 Transceivers

ADM488/ADM489

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

Meets EIA RS-485 and RS-422 standards

250 kbps data rate

Single 5 V 10% supply

−7 V to +12 V bus common-mode range

12 kΩ input impedance

2 kV EFT protection meets IEC1000-4-4

High EM immunity meets IEC1000-4-3

Reduced slew rate for low EM interference

Short-circuit protection

ADM488

Figure 1.

Excellent noise immunity

30 μA supply current

ADM489

APPLICATIONS

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.

GENERAL DESCRIPTION

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

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

The ADM488 and ADM489 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 Electronics Industries

Association (EIA) RS-485 and RS-422 standards. Both products

contain a single differential line driver and a single differential

line receiver, making them suitable for full-duplex data transfer.

The ADM489 contains an additional receiver and driver enable

control.

The ADM488/ADM489 are fabricated on BiCMOS, an

advanced mixed technology process combining low power

CMOS with fast switching bipolar technology.

The ADM488/ADM489 are fully specified over the industrial

temperature range and are available in PDIP, SOIC, and TSSOP

packages.

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

connected on the bus.

The ADM488/ADM489 operate from a single 5 V 1ꢀ0 power

supply. Excessive power dissipation 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.

Rev. D

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 arethe 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

www.analog.com

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与ADM488_15相关器件

型号	品牌	获取价格	描述	数据表
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
ADM488AR	ADI	获取价格	Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers

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