5.7 kV RMS Isolated, High Working Voltage, RS-485 Transceiver with 15 kV IEC ESD Data Sheet ADM2761E/ADM2763E FEATURES FUNCTIONAL BLOCK DIAGRAMS V V DD1 DD2 5.7 kV rms, signal isolated RS-485 transceiver 1500 V peak and dc working voltage to DIN V VDE 0884-11 ADM2761E Low radiated emissions: passes EN 55032, Class B with margin DIGITAL ISOLATION RS-485 TRANSCEIVER on a 2-layer PCB RE DECODE R RxD ENCODE Receiver cable inversion smart feature (ADM2763E) Correction for reversed cable connection on A and B bus pins A while maintaining full receiver fail-safe feature B ENCODE DECODE DE ESD protection on the RS-485 A, B, Y, and Z bus pins 12 kV IEC 61000-4-2 contact discharge ENCODE DECODE D TxD 15 kV IEC 61000-4-2 air discharge Low speed 500 kbps data rate for EMI control Flexible power supply inputs ISOLATION Primary VDD1 supply of 1.7 V to 5.5 V GND GND 1 2 BARRIER Isolated VDD2 supply of 3.0 V to 5.5 V Figure 1. ADM2761E PROFIBUS compliant for 5 V VDD2 V V DD1 DD2 Wide 40C to +125C operating temperature range ADM2763E High common-mode transient immunity: >250 kV/s DIGITAL ISOLATION RS-485 Short-circuit, open circuit, and floating input receiver fail-safe TRANSCEIVER RE Supports 192 bus nodes (72 k receiver input impedance) A CABLE RxD DECODE ENCODE R INVERT B Full hot swap support (glitch free power-up and power-down) Safety and regulatory approvals (pending) INVR DECODE ENCODE CSA Component Acceptance Notice 5A, DIN V VDE 0884-11, Y TxD ENCODE DECODE D UL 1577, CQC11-471543-2012, IEC 61010-1 Z 16-lead, wide-body, SOIC W package with 8.3 mm creepage and clearance in standard pinout DE DECODE ENCODE APPLICATIONS Solar inverters GND ISOLATION GND 1 2 BARRIER Electrical test and measurement Figure 2. ADM2763E Heating, ventilation, and air conditioning (HVAC) networks Industrial field buses The devices are protected against 12 kV contact and 15 kV Building automation air IEC 61000-4-2 electrostatic discharge (ESD) events on the RS-485 A, B, Y, and Z pins. The ADM2763E features a receiver GENERAL DESCRIPTION cable invert pin to allow quick correction of the reversed cable The ADM2761E/ADM2763E are 500 kbps, 5.7 kV rms, signal connection on the A and B receiver bus pins while maintaining isolated RS-485 transceivers that pass radiated emissions testing to full receiver fail-safe performance. the EN 55032, Class B standard with margin on a 2-layer printed circuit board (PCB). These devices are compliant to the RS-485 These devices are optimized for low speed over long cable runs and have a maximum data rate of 500 kbps. The high differential and RS-422 communication standards. The ADM2761E/ output voltage makes these devices suitable for PROFIBUS ADM2763E isolation barrier provides robust system level nodes when powered with 5 V on the V supply. The V immunity to IEC 61000-4-x system level electromagnetic DD2 DD1 primary supply and VDD2 isolated supply both support a wide compatibility (EMC) standards. The devices are suitable for applications that require insulation against working voltages of range of voltages (1.7 V to 5.5 V and 3.0 V to 5.5 V, respectively). 1060 V rms and 1500 V dc for the lifetime of the device. Half-duplex and full duplex device options are available in the industry standard 16-lead, wide body, standard SOIC W package with 8.3 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 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 2020 Analog Devices, Inc. All rights reserved. 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. Technical Support www.analog.com IEC 61000-4-2 ESD PROTECTION IEC 61000-4-2 ESD PROTECTION 22795-002 22795-001ADM2761E/ADM2763E Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Theory of Operation ...................................................................... 18 Applications ....................................................................................... 1 Robust Low Power Digital Isolator .......................................... 18 General Description ......................................................................... 1 High Driver Differential Output Voltage ................................ 18 Functional Block Diagrams ............................................................. 1 IEC 61000-4-2 ESD Protection ................................................ 18 Revision History ............................................................................... 2 Truth Tables................................................................................. 19 Specifications ..................................................................................... 3 Receiver Fail-Safe ....................................................................... 19 Timing Specifications .................................................................. 4 Driver and Receiver Cable Inversion ....................................... 20 Package Characteristics ............................................................... 6 Hot Swap Inputs ......................................................................... 20 Insulation and Safety Related Specifications ............................ 6 192 Transceivers on the Bus ...................................................... 20 Regulatory Information ............................................................... 7 Driver Output Protection .......................................................... 20 DIN V VDE 0884-11 (VDE 0884-11) Insulation Characteristics Applications Information .............................................................. 21 (Pending) ........................................................................................ 8 PCB Layout and Electromagnetic Interference (EMI) .......... 21 Absolute Maximum Ratings ............................................................ 9 Maximum Data Rate vs. Ambient Temperature ........................ 21 Thermal Resistance ...................................................................... 9 Isolated PROFIBUS Solution .................................................... 21 Electrostatic Discharge (ESD) Ratings ...................................... 9 EMC, EFT, and Surge ................................................................. 21 ESD Caution .................................................................................. 9 Insulation Lifetime ..................................................................... 22 Pin Configurations and Function Descriptions ......................... 10 Outline Dimensions ....................................................................... 24 Typical Performance Characteristics ........................................... 12 Ordering Guide .......................................................................... 24 Test Circuits and Switching Characteristics ................................ 16 REVISION HISTORY 6/2020Revision 0: Initial Version Rev. 0 Page 2 of 24