GENERAL DESCRIPTION
The ADM2761E/ADM2763E are 500 kbps, 5.7 kV rms, signal isolated RS-485 transceivers that pass radiated emissions testing to the EN 55032, Class B standard with margin on a 2-layer printed circuit board (PCB). These devices are compliant to the RS-485 and RS-422 communication standards. The ADM2761E/ ADM2763E isolation barrier provides robust system level immunity to IEC 61000-4-x system level electromagnetic compatibility (EMC) standards. The devices are suitable for applications that require insulation against working voltages of 1060 V rms and 1500 V dc for the lifetime of the device.
The devices are protected against ≥±12 kV contact and ≥±15 kV air IEC 61000-4-2 electrostatic discharge (ESD) events on the RS-485 A, B, Y, and Z pins. The ADM2763E features a receiver cable invert pin to allow quick correction of the reversed cable connection on the A and B receiver 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 3.0 V to 5.5 V, respectively). 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.

FEATURES
5.7 kV rms, signal isolated RS-485 transceiver
1500 V peak and dc working voltage to DIN V VDE 0884-11
Low radiated emissions: passes EN 55032, Class B with margin on a 2-layer PCB
Receiver cable inversion smart feature (ADM2763E)
Correction for reversed cable connection on A and B bus pins while maintaining full receiver fail-safe feature
ESD protection on the RS-485 A, B, Y, and Z bus pins
≥±12 kV IEC 61000-4-2 contact discharge
≥±15 kV IEC 61000-4-2 air discharge
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 0884-11, UL 1577, CQC11-471543-2012, IEC 61010-1
16-lead, wide-body, SOIC_W package with 8.3 mm creepage and clearance in standard pinout

APPLICATIONS
Solar inverters
Electrical test and measurement
Heating, ventilation, and air conditioning (HVAC) networks
Industrial field buses
Building automation