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ADM2687EBRIZ

更新时间： 2024-09-27 07:18:47
品牌 Logo 应用领域
亚德诺 - ADI 线路驱动器或接收器驱动程序和接口接口集成电路光电二极管PC
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24页 464K
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5 kV rms Signal and Power Isolated

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ADM2687EBRIZ 数据手册

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5 kV rms Signal and Power Isolated  
RS-485 Transceiver with ± ±5 kV ꢀSꢁ  
AꢁM2682ꢀ/AꢁM2687ꢀ  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
V
V
ISOOUT  
CC  
5 kV rms isolated RS-485/RS-422 transceiver, configurable as  
half or full duplex  
isoPower DC-TO-DC CONVERTER  
isoPower integrated isolated dc-to-dc converter  
15 kV ESD protection on RS-485 input/output pins  
Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E)  
Data rate: 16 Mbps (ADM2682E), 500 kbps (ADM2687E)  
5 V or 3.3 V operation  
OSCILLATOR  
RECTIFIER  
V
ISOIN  
REGULATOR  
Connect up to 256 nodes on one bus  
Open- and short-circuit, fail-safe receiver inputs  
High common-mode transient immunity: >25 kV/μs  
Thermal shutdown protection  
TRANSCEIVER  
D
DIGITAL ISOLATION iCoupler  
Y
Z
ENCODE  
DECODE  
DECODE  
ENCODE  
TxD  
DE  
Safety and regulatory approvals  
UL recognition (pending)  
5000 V rms for 1 minute per UL 1577  
ENCODE  
DECODE  
CSA Component Acceptance Notice #5A (pending)  
IEC 60601-1: 400 V rms (basic), 250 V rms (reinforced)  
IEC 60950-1: 600 V rms (basic), 380 V rms (reinforced)  
VDE Certificates of Conformity (pending)  
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01  
A
B
RxD  
R
RE  
ADM2682E/ADM2687E  
V
IORM = 846 V peak  
Operating temperature range: −40°C to +85°C  
16-lead wide-body SOIC with >8 mm creepage and clearance  
GND  
GND  
2
1
ISOLATION  
BARRIER  
Figure 1.  
APPLICATIONS  
Isolated RS-485/RS-422 interfaces  
Industrial field networks  
Multipoint data transmission systems  
GENERAL DESCRIPTION  
The ADM2682E/ADM2687E are fully integrated 5 kV rms  
signal and power isolated data transceivers with ±±5 kV EꢀD  
protection and are suitable for high speed communication on  
multipoint transmission lines. The ADM2682E/ADM2687E  
include an integrated 5 kV rms isolated dc-to-dc power supply  
that eliminates the need for an external dc-to-dc isolation block.  
The ADM2682E/ADM2687E drivers have an active high enable.  
An active low receiver enable is also provided, which causes the  
receiver output to enter a high impedance state when disabled.  
The devices have current limiting and thermal shutdown  
features to protect against output short circuits and situations  
where bus contention may cause excessive power dissipation.  
The parts are fully specified over the industrial temperature  
range and are available in a highly integrated, ±6-lead, wide-  
body ꢀOIC package with >8 mm creepage and clearance.  
They are designed for balanced transmission lines and comply  
with ANꢀI/TIA/EIA-485-A-98 and IꢀO 8482:±987(E).  
The devices integrate Analog Devices, Inc., iCoupler® technology to  
combine a 3-channel isolator, a three-state differential line driver, a  
differential input receiver, and Analog Devices isoPower® dc-to-dc  
converter into a single package. The devices are powered by a  
single 5 V or 3.3 V supply, realizing a fully integrated signal and  
power isolated Rꢀ-485 solution.  
The ADM2682E/ADM2687E contain isoPower technology that  
uses high frequency switching elements to transfer power through  
the transformer. ꢀpecial care must be taken during printed circuit  
board (PCB) layout to meet emissions standards. Refer to  
AN-097± Application Note, Recommendations for Control of  
Radiated Emissions with isoPower Devices, for details on board  
layout considerations.  
Rev. 0  
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  
©2011 Analog Devices, Inc. All rights reserved.  
 
 
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ADM2687EBRIZ 替代型号

型号 品牌 替代类型 描述 数据表
ADM2687EBRIZ-RL7 ADI

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 5 kV rms Signal and Power Isolated

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