ADI ADM2865EBRNZ-RL7

The ADM2861E, ADM2863E, ADM2865E, and ADM2867E are 5.7 kV rms signal and power isolated RS-485 transceivers. These devices are designed for balanced transmission lines and comply with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E). The devices pass radiated emissions testing to the EN 55032 Class B standard with margin on a 2-layer printed circuit board (PCB) using two small external 6402 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 ±12 kV contact and ±15 kV air IEC61000-4-2 ESD protection on the RS-485 A, B, Y, and Z pins. The devices also features 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. Slew rate limited versions are available, which are optimized for low speed over long cable runs, and have a maximum data rate of 500 kbps. Half duplex and full duplex variants are available. The full duplex generics allow independent cable inversion of the driver and receiver for additional flexibility.

• 5.7 kV rms isolated RS-485/RS-422 transceiver
• Low radiated emissions, integrated, isolated dc-to-dc converter
• Passes EN 55032 Class B with margin on a 2-layer PCB
• Cable invert smart feature
• ESD protection on RS-485 A, B, Y, and Z pins ≥ ±12 kV IEC61000-4-2 contact discharge ≥ ±15 kV IEC61000-4-2 air discharge
• High speed 25 Mbps data rate (ADM2865E/ADM2867E)
• Low speed 500 kbps data rate for EMI control (ADM2861E/ADM2863E)
• Flexible power supplies: Input VCC supply of 3 V to 5.5 V, Logic V10 supply of 1.7 V to 5.5 V, VSEL pin to select V100 supply of 5 V (VCC > 4.5 V) or 3.3 V
• PROFIBUS compliant for 5V100
• Wide operating temperature range: -40°C to +105°C
• 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/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
• Complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E)
• 28-lead, fine pitch SOIC_W package (10.15 mm×10.05 mm) with >8.0 mm creepage and clearance

• Heating, ventilation, and air conditioning (HVAC) networks
• Industrial field buses
• Building automation
• Utility networks
• Energy meters