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ADM2483BRWZ

更新时间： 2024-11-21 12:55:03

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
20页	244K
描述
Half-Duplex, iCouplerÂ® Isolated RS-485 Transceiver

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ADM2483BRWZ 数据手册

Half-Duplex, i

Coupler^®

Isolated RS-485 Transceiver

ADM2483

FUNCTIONAL BLOCK DIAGRAM

FEATURES

RS-485 transceiver with electrical data isolation

Complies with ANSI TIA/EIA RS-485-A and ISO 8482: 1987(E)

500 kbps data rate

DD2

DD1

ADM2483

Slew rate-limited driver outputs

Low power operation: 2.5 mA max

TxD

Suitable for 5 V or 3 V operations (V_DD1

High common-mode transient immunity: >25 kV/μs

True fail-safe receiver inputs

Chatter-free power-up/power-down protection

256 nodes on bus

)

RxD

Thermal shutdown protection

GND

Safety and regulatory approvals

Figure 1.

UL recognition: 2500 V_rmsfor 1 minute per UL 1577

CSA Component Acceptance Notice #5A

VDE Certificate of Conformity

DIN EN 60747-5-2 (VDE 0884 Rev. 2): 2003-01

DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000

V_IORM= 560 V peak

Operating temperature range: −40°C to +85°C

APPLICATIONS

Low power RS-485/RS-422 networks

Isolated interfaces

Building control networks

Multipoint data transmission systems

and receiver differential inputs are connected internally to form

a differential I/O port. When the driver is disabled or when

V_DD1or V_DD2= 0 V, this imposes minimal loading on the bus.

An active-high receiver disable feature, which causes the receive

output to enter a high impedance state, is provided as well.

GENERAL DESCRIPTION

The ADM2483 differential bus transceiver is an integrated,

galvanically isolated component designed for bidirectional data

communication on balanced, multipoint bus transmission lines.

It complies with ANSI EIA/TIA-485-A and ISO 8482: 1987(E).

Using Analog Devices’ iCoupler technology, the ADM2483

combines a 3-channel isolator, a three-state differential line

driver, and a differential input receiver into a single package.

The logic side of the device is powered with either a 5 V or 3 V

supply, and the bus side uses a 5 V supply only.

The receiver inputs have a true fail-safe feature that ensures a

logic-high receiver output level when the inputs are open or

shorted. This guarantees that the receiver outputs are in a

known state before communication begins and at the point

when communication ends.

The ADM2483 is slew-limited to reduce reflections with

improperly terminated transmission lines. The controlled slew

rate limits the data rate to 500 kbps. The device’s input impedance

is 96 kΩ, allowing up to 256 transceivers on the bus. Its driver

has an active-high enable feature. The driver differential outputs

Current limiting and thermal shutdown features protect against

output short circuits and bus contention situations that might

cause excessive power dissipation. The part is fully specified

over the industrial temperature range and is available in a

16-lead, wide body SOIC package.

Rev. B

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

registered trademarks are the 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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ADM2483BRWZ 替代型号

型号	品牌	替代类型	描述	数据表
ADM2483BRWZ-REEL	ADI	完全替代	Half-Duplex, iCouplerÂ® Isolated RS-485 Trans
ADM2483BRW	ADI	类似代替	Half-Duplex iCoupler-R Isolated RS-485 Transceiver
ADM2483BRW-REEL	ADI	类似代替	Half-Duplex iCoupler-R Isolated RS-485 Transceiver

与ADM2483BRWZ相关器件

型号	品牌	获取价格	描述	数据表
ADM2483BRWZ-REEL	ADI	获取价格	Half-Duplex, iCouplerÂ® Isolated RS-485 Trans
ADM2484E	ADI	获取价格	500 kbps, ESD Protected, Half-/Full-Duplex, iCoupler, Isolated RS-485 Transceiver
ADM2484EBRWZ	ADI	获取价格	500 kbps, ESD Protected, Half-/Full-Duplex, iCoupler, Isolated RS-485 Transceiver
ADM2484EBRWZ-REEL7	ADI	获取价格	500 kbps, ESD Protected, Half-/Full-Duplex, iCoupler, Isolated RS-485 Transceiver
ADM2485	ADI	获取价格	High Speed Isolated RS-485 Transceiver with Integrated Transformer Driver
ADM2485_07	ADI	获取价格	High Speed, Isolated RS-485 Transceiver with Integrated Transformer Driver
ADM2485BRWZ	ADI	获取价格	High Speed Isolated RS-485 Transceiver with Integrated Transformer Driver
ADM2485BRWZ-REEL	ADI	获取价格	High Speed Isolated RS-485 Transceiver with Integrated Transformer Driver
ADM2485BRWZ-REEL7	ADI	获取价格	High Speed, Isolated RS-485 Transceiver with Integrated Transformer Driver
ADM2486	ADI	获取价格	High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver

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