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ADM2463E

更新时间： 2024-11-03 14:57:47
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亚德诺 - ADI /
页数 文件大小 规格书
21页 372K
描述
500 kbps、5.7 kV RMS、信号隔离型 RS-485 接口收发器，具有 ±15 kV IEC ESD

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ADM2463E 数据手册

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500 kbps, 5.7 kV RMS, Signal Isolated  
RS-485 Transceiver with ± ±5 kV IꢀE ꢀSꢁ  
ꢁata Sheet  
AꢁM246±ꢀ/AꢁM2463ꢀ  
FEATURES  
FUNCTIONAL BLOCK DIAGRAMS  
DD1  
V
V
DD2  
5.7 kV rms, signal isolated RS-485/RS-422 transceiver  
Low radiated emissions, passes EN55032 Class B with margin  
on a 2-layer PCB  
ADM2461E  
DIGITAL ISOLATION  
RS-485 TRANSCEIVER  
Cable inversion smart feature  
RE  
Correction for reversed cable connection on A, B, Y, and Z bus  
pins while maintaining full receiver fail-safe  
ESD protection on the RS-485 A, B, Y, and Z bus pins  
≥ 12 kV IEC61000-4-2 contact discharge  
≥ 15 kV IEC61000-4-2 air discharge  
RxD  
R
B
A
DE  
CABLE  
INVERT  
D
TxD  
INV  
Low speed 500 kbps data rate for EMI control  
Flexible power supply inputs  
Primary VDD1 supply of 1.7 V to 5.5 V  
Isolated VDD2 supply of 3.0 V to 5.5 V  
Profibus® compliant for 5 V VDD2  
Wide −40°C to +125°C operating temperature range  
High common-mode transient immunity: >250 kV/μs  
Short-circuit, open-circuit, and floating input receiver fail-safe  
Supports 192 bus nodes (72 kΩ receiver input impedance)  
Full hot swap support (glitch free power-up and power-down)  
Safety and regulatory approvals (pending)  
CSA Component Acceptance Notice 5A, DIN V VDE V 0884-11,  
UL 1577, CQC11-471543-2012, IEC 61010-1  
16-lead, wide body, SOIC_W package with >8.0 mm  
creepage and clearance in standard pinout  
GND  
GND  
2
1
ISOLATION  
BARRIER  
Figure 1. ADM2461E Functional Block Diagram  
V
V
DD2  
DD1  
ADM2463E  
DIGITAL ISOLATION  
RS-485 TRANSCEIVER  
RE  
A
B
CABLE  
INVERT  
R
RxD  
INVR  
TxD  
DE  
APPLICATIONS  
Heating, ventilation, and air conditioning (HVAC) networks  
Industrial field buses  
Building automation  
Z
Y
D
Utility networks  
GND  
GND  
2
1
ISOLATION  
BARRIER  
Figure 2. ADM2463E Functional Block Diagram  
GENERAL DESCRIPTION  
The ADM2461E/ADM2463E are 500 kbps, 5.7 kV rms, signal  
isolated RS-485 transceivers that pass radiated emissions testing to  
the EN55032 Class B standard with margin on a 2-layer printed  
circuit board (PCB). The ADM2461E/ADM2463E isolation  
barrier provides robust immunity to noise and system level EMC  
events. The devices are protected against ≥ 12 kV contact and ≥  
15 kV air ꢀEC61000-4-2 electrostatic discharge (ESD) events  
on the RS-485 A, B, Y, and Z pins. The devices feature cable invert  
pins to allow quick correction of the reversed cable connection  
on the A, B, Y, and Z bus pins while maintaining full receiver  
fail-safe performance.  
These devices are optimized for low speed over long cable runs  
and have a maximum data rate of 500 kbps. The high differential  
output voltage makes these devices suitable for Profibus nodes  
when powered with 5 V on the VDD2 supply. The VDD1 primary  
supply and VDD2 isolated supply both support a wide range of  
voltages (1.7 V to 5.5 V and 3 V to 5.5 V, respectively). Half-  
duplex and full duplex device options are available in the industry  
standard 16-lead, wide-body, standard SOꢀC_W package with  
>8.0 mm creepage and clearance.  
Rev. 0  
Document Feedback  
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 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  
Technical Support  
©2020 Analog Devices, Inc. All rights reserved.  
www.analog.com  
 
 
 
 
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