Analog Devices ADM2867E Isolated RS-485 Transceiver

SKU: COM-16882 Brand: Sparkfun

Retired Product

This product has been replaced by: RS-485 Transceiver
This product is no longer available. This page is only for reference.

Analog Devices ADM2867E Isolated RS-485 Transceivers are a 5.7kVrms signal and power isolated RS-485 transceivers. The devices pass radiated emissions testing to the EN55032 Class B standard with margin on a 2-layer printed circuit board (PCB) using two small external 0402 ferrites on isolated power and ground pins. The device features an integrated, low electromagnetic interference (EMI), isolated dc-to-dc converter, which eliminates the need for an external isolated power supply. The isolation barrier provides immunity to system-level electromagnetic compatibility (EMC) standards. The family of isolator devices features ±12kV contact and ±15kV air IEC61000-4-2 ESD protection on the RS-485 A, B, Y, and Z pins. The devices also feature cable invert pins, allowing the user to quickly correct reversed cable connection on the A, B, Y, and Z bus pins while maintaining full receiver fail-safe performance.

Features

5.7kVrms isolated RS-485/RS-422 transceiver
Low radiated emissions, integrated, isolated DC-to-DC converter
Passes EN55032 Class B with margin 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
ESD protection on RS-485 A, B, Y, and Z pins
- ≥±12kV IEC61000-4-2 contact discharge
- ≥±15kV IEC61000-4-2 air discharge
High speed 25Mbps data rate (ADM2865E/ADM2867E)
Low-speed 500kbps data rate for EMI control (ADM2861E/ADM2863E)
Flexible power supplies
- Input VCC supply of 3V to 5.5V
- Logic VIO supply of 1.7V to 5.5V
- VSEL pin to select VISO supply of 5V (VCC > 4.5V) or 3.3V
PROFIBUS compliant for 5V VISO
−40°C to +105°C wide operating temperature range
High common-mode transient immunity: 250kV/μs
Short-circuit, open-circuit, and floating input receiver fail-safe
Supports 196 bus nodes (72kΩ 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 0884-11, UL 1577, CQC11-471543-2012, IEC 61010-1
28-lead, fine pitch SOIC_W package (10.15mm × 10.05mm) with >8.0mm creepage and clearance

Documents

Datasheet

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Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
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