Datasheet > ADM2485BRWZ-REEL

ADM2485BRWZ-REEL

更新时间： 2024-09-27 03:35:19

品牌	Logo	应用领域
亚德诺 - ADI		变压器驱动器
页数	文件大小	规格书
15页	562K
描述
High Speed Isolated RS-485 Transceiver with Integrated Transformer Driver

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ADM2485BRWZ-REEL 数据手册

High Speed Isolated RS-485 Transceiver

with Integrated Transformer Driver

Preliminary Technical Data

ADM2485

GENERAL DESCRIPTION

FEATURES

The ADM2485 differential bus transceiver is an integrated,

galvanically isolated component designed for bidirectional data

communication on multipoint bus transmission lines. It is

designed for balanced transmission lines and complies with

ANSI TIA/EIA RS-485-A-1998 and ISO 8482:1987(E).

Half-duplex isolated RS-485 transceiver

Integrated oscillator driver for external transformer

PROFIBUS compliant

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

ISO 8482:1987(E)

The device employs Analog Devices’ iCoupler technology to

combine a 3-channel isolator, a 3-state differential line driver,

and a differential input receiver into a single package. An on-

chip oscillator outputs a pair of square waveforms which drive

an external transformer to provide isolated power with an

external transformer. The logic side of the device can be

powered with either a 5 V or a 3 V supply while the bus side is

powered with an isolated 5 V supply.

16 Mbps data rate

5 V or 3 V operation (V_DD1

50 nodes on bus

Receiver open-circuit, fail-safe design

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

Isolated DE OUT status output

)

Thermal shutdown protection

Safety and regulatory approvals (pending):

UL recognition—2500 V_RMSfor 1 minute per UL 1577

CSA component acceptance notice #5A

VDE certificate of conformity

The ADM2485 driver has an active high enable. The driver

differential outputs and the receiver differential inputs are

connected internally to form a differential input/output port

that imposes minimal loading on the bus when the driver is

disabled or when V_DD1or V_DD2= 0 V. Also provided is an active

high receiver disable that causes the receive output to enter a

high impedance state.

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

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

_IORM= 560 V peak

Operating temperature range: -40° to 85°C

Wide body 16-lead SOIC package

The device has current-limiting and thermal shutdown features

to protect against output short circuits and situations where bus

contention 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.

APPLICATIONS

Isolated RS-485/RS-422 interfaces

PROFIBUS networks

Industrial field networks

Multipoint data transmission systems

FUNCTIONAL BLOCK DIAGRAM

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Figure 1

Rev.PrK

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: 781.326.8703

www.analog.com

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与ADM2485BRWZ-REEL相关器件

型号	品牌	获取价格	描述	数据表
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
ADM2486BRW	ADI	获取价格	High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver
ADM2486BRW-REEL	ADI	获取价格	High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver
ADM2486BRW-RL	ADI	获取价格	IC LINE TRANSCEIVER, PDSO16, SOIC-16, Line Driver or Receiver
ADM2486BRWZ	ADI	获取价格	High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver
ADM2486BRWZ-REEL	ADI	获取价格	High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver
ADM2487E	ADI	获取价格	2.5 kV Isolated RS-485 Transceivers with Integrated Transformer Driver
ADM2487EBRWZ	ADI	获取价格	2.5 kV Isolated RS-485 Transceivers with Integrated Transformer Driver
ADM2487EBRWZ-REEL7	ADI	获取价格	2.5 kV Isolated RS-485 Transceivers with Integrated Transformer Driver

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