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ADM2867E

Part Number	ADM2867E
Manufacturer	Analog Devices
Description	RS-485 Transceiver
Published	Apr 9, 2020
Detailed Description	5.7 kV RMS Signal and Power Isolated RS-485 Transceiver with ±15 kV IEC ESD Preliminary Technical Data ADM2867E FEAT...
Datasheet	ADM2867E PDF File

Overview

5.
7 kV RMS Signal and Power Isolated RS-485 Transceiver with ±15 kV IEC ESD Preliminary Technical Data ADM2867E FEATURES 5.
7 kV rms isolated full duplex RS-485/RS-422 transceiver Low radiated emissions integrated isolated dc-to-dc converter Meets EN55022 Class B radiated emissions requirements on a 2-layer PCB Cable invert smart feature Correct reversed cable connection on A, B, Y, and Z bus pins while maintaining full receiver fail-safe feature IEC 61000-4-2 ESD protection to ±12 kV contact, ±15 kV air on RS-485 A, B, Y, and Z pins High speed 25 Mbps data rate Flexible power supplies VCC of 3 V to 5.
5 V VIO of 1.
7 V to 5.
5 V VSEL pin to select VISO of 3.
3 V (VCC > 3 V) or 5 V (VCC > 4.
5 V) PROFIBUS compliant for 5 V VISO Wide −40°C to +105°C operating temperature range High common-mode transient immunity: 250 kV/μs Short circuit, open circuit and floating input receiver fail-safe Supports 196 bus nodes (72 kΩ receiver input impedance) Full hot swap support (glitch free power-up/power-down) Safety and regulatory approvals (pending) CSA Component Acceptance Notice 5A, DIN V VDE V 088411, UL 1577, CQC11-471543-2012, IEC 61010-1 28-lead fine pitch SOIC package (10.
15 mm × 10.
05 mm) with >8.
0 mm creepage and clearance APPLICATIONS Heating, ventilation, and air-conditioning (HVAC) networks Industrial field buses Building automation Utility networks FUNCTIONAL BLOCK DIAGRAM Figure 1.
ADM2867E Functional Block Diagram GENERAL DESCRIPTION The ADM2867E is a 5.
7 kV rms signal and power isolated full duplex RS-485 transceiver which passes radiated emissions testing to the EN55022 Class B standard with margin on a 2layer PCB using two small external 0402 ferrites on isolated power and ground pins.
The isolation barrier provides immunity to system level EMC standards.
The ADM2867E has ±12 kV contact, ±15 kV air IEC61000-4-2 ESD protection on RS-485 A, B, Y, and Z pins.
The device also features cable invert pins, allowing the user to quickly correct reversed cable connection...

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ADM2867E RS-485 Transceiver - Analog Devices

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