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ADM3491E

更新时间： 2024-11-18 04:04:39

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	536K
描述
3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers

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中文翻译

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数据手册

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ADM3491E 数据手册

3.3 V, ± ±1 ꢀV ꢁESD-Proteotꢂ, ꢃHalD Hꢄꢂ

FuaaDSupatx, RED481/RED422 TPHꢄsetivtPs

ASM3483ꢁ/ASM3486ꢁ/ASM3488ꢁ/ASM3490ꢁ/ASM349±ꢁ

FEATURES

FUNCTIONAL BLOCK DIAGRAMS

TIA/EIA RS-485/RS-422 compliant

15 kV ESD protection on RS-485 input/output pins

Data rates

ADM3483E/

ADM3486E

ADM3483E/ADM3488E: 250 kbps

ADM3486E: 2.5 Mbps

ADM3490E/ADM3491E: 12 Mbps

Half- and full-duplex options

Up to 32 nodes on the bus

Receiver open-circuit, fail-safe design

Low power shutdown current

GND

(ADM3483E/ADM3486E/ADM3491E only)

Outputs high-Z when disabled or powered off

Common-mode input range: −7 V to +12 V

Thermal shutdown and short-circuit protection

Industry-standard 75176 pinout

8-lead and 14-lead narrow SOIC packages

Figure 1.

ADM3488E/

ADM3490E

APPLICATIONS

Power/energy metering

Telecommunications

EMI-sensitive systems

Industrial control

GND

Figure 2.

Local area networks

GENERAL DESCRIPTION

The ADM3483E/ADM3486E/ADM3488E/ADM3490E/

ADM3491E are 3.3 V, low power data transceivers with

1ꢀ ꢁV EꢂD protection suitable for full- and half-duplex

communication on multipoint bus transmission lines. They

are designed for balanced data transmission, and they

comply with TIA/EIA standards Rꢂ48ꢀ and Rꢂ-422. The

ADM3483E/ADM3486E are half-duplex transceivers that

share differential lines and have separate enable inputs for

the driver and receiver. The full-duplex ADM3488E/

ADM3490E/ADM3491E transceivers have dedicated

differential line driver outputs and receiver inputs. The

ADM3491E also features separate enable inputs for the

driver and receiver.

ADM3491E

GND

Figure 3.

The devices have a 12 ꢁΩ receiver input impedance,

which allows up to 32 transceivers on a bus. Because only

one driver should be enabled at any time, the output of a

disabled or powered-down driver is tristated to avoid

overloading the bus.

(continued on Page 3)

Rev. A

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

12 3 4 5 6 7...20

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与ADM3491E相关器件

型号	品牌	获取价格	描述	数据表
ADM3491E_15	ADI	获取价格	Full-Duplex, RS-485/RS-422 Transceivers
ADM3491EARZ	ADI	获取价格	3.3 V, 【15 kV ESD-Protected, Half- and Full-D
ADM3491EARZ-REEL7	ADI	获取价格	3.3 V, 【15 kV ESD-Protected, Half- and Full-D
ADM3493	ADI	获取价格	3.3 V Slew Rate Limited, Half Duplex RS-485/RS-422 Transceiver
ADM3493ARZ	ADI	获取价格	3.3 V Slew Rate Limited, Half Duplex RS-485/RS-422 Transceiver
ADM3493ARZ-REEL7	ADI	获取价格	3.3 V Slew Rate Limited, Half Duplex RS-485/RS-422 Transceiver
ADM383	ADI	获取价格	5 V Low Power, Slew-Rate Limited RS-485/RS-422 Transceiver
ADM401-1/12VDC	ETC	获取价格	Analog IC
ADM401-1/24VDC	ETC	获取价格	Analog IC
ADM401-1/48VDC	ETC	获取价格	Analog IC

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