Analog Devices Inc. ADM2461E & ADM2463E RS-485 Transceivers

Analog Devices Inc. ADM2461E and ADM2463E RS-485 Transceivers are 500kbps and 5.7kV_RMSsignal isolated transceivers that pass radiated emissions testing to the EN55032 Class B standard with margin on 2-layer PCB. The ADM2461E and ADM2463E Transceivers offer robust immunity to noise and system-level Electromagnetic Compatibility (EMC) evants. The devices are protected against ≥±12kV contact and ≥±15kV air IEC61000-4-2 Electrostatic Discharge (ESD) events on the RS-485 A, B, Y, and Z pins. The ADM2461E and ADM2463E both feature cable invert pins to allow quick correction of the reversed cable connection on the A, B, Y, and Z bus pins. These devices are optimized for low speed over long cable runs and showcase a maximum of 500kbps data rate. Typical applications include ESD and Heating, Ventilation, Air Conditioning (HVAC) networks, industrial field buses, building automation, and utility networks.

Features

5.7kV_rms, signal isolated RS-485/RS-422 transceivers
Low radiated emissions, passes EN55032 Class B with margin on a 2-layer PCB
Cable inversion smart feature
- 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
Low speed 500kbps data rate for EMI control
Flexible power supply inputs
- Primary V_DD1 supply of 1.7V to 5.5V
- Isolated V_DD2 supply of 3.0V to 5.5V
Profibus^® compliant for 5V V_DD2

Wide -40°C to +125°C operating temperature range
High common-mode transient immunity: >250kV/μs
Short-circuit, open-circuit, and floating input receiver fail-safe
Supports 192 bus nodes (72kΩ receiver input impedance)
Full hot swap support (glitch free power-up and power-down)
Safety and regulatory approvals (pending)
CSA Component Acceptance Notice 5A, DINVVDEV 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