The ADM2763E is a 500 kbps, 5.7 kV rms, signal isolated RS485 transceiver that passes radiated emissions testing to the EN55032 Class B standard with margin on a 2-layer printed circuit board (PCB). The ADM2763E isolation barrier provides robust system level immunity to IEC61000-4-x system level EMC standards. The device is suitable for applications which require insulation against working voltages of 1060 V rms and 1500V dc for the lifetime of the device. The devices is protected against ≥ ±12 kV contact and ≥ ±15 kV air IEC61000-4-2 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 failsafe performance.
The ADM2763E is optimized for low speed over long cable runs and has a maximum data rate of 500 kbps. The high differential output voltage makes this device 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 5.5V, respectively). This full duplex device is available in the industry standard 16-lead, wide body, standard SOIC package with >8.0 mm creepage and clearance.
Applications
Solar inverters
Electrical test and measurementHeating, ventilation, and air-conditioning (HVAC) networks
Industrial field buses
Building automation
5.7 kV rms, signal isolated RS-485/RS-422 transceiver
1500 V peak/dcworking voltage to DIN V VDE V 0884-11
Low radiated emissions: passes EN55032 Class B with margin on a 2-layer PCB
Receiver cable inversion smart feature
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
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 5V 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 package with >8.0 mm creepage and clearance in standard pinout
ADM2763E ADM2763EBRWZADM2763EBRWZ-RL7
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