Overview
The ADM2861EBRNZ-RL7 is a 5.7 kV rms signal and power isolated RS-485 transceiver manufactured by Analog Devices Inc. This device is designed for balanced transmission lines and complies with ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards. It features an integrated, low electromagnetic interference (EMI), isolated dc-to-dc converter, which eliminates the need for an external isolated power supply. The device is robust and offers high common-mode transient immunity, making it suitable for various industrial and commercial applications.
Key Specifications
| Parameter | Value |
|---|---|
| Isolation Voltage | 5.7 kV rms |
| ESD Protection | ±12 kV IEC61000-4-2 contact discharge, ±15 kV IEC61000-4-2 air discharge |
| Data Rate | Up to 25 Mbps (ADM2865E/ADM2867E), 500 kbps (ADM2861E/ADM2863E) |
| Power Supplies | VCC: 3 V to 5.5 V, VIO: 1.7 V to 5.5 V |
| Operating Temperature | -40°C to +105°C |
| Common-Mode Transient Immunity | 250 kV/µs |
| Receiver Input Impedance | 72 kΩ |
| Package | 28-lead, fine pitch SOIC_W package (10.15 mm × 10.05 mm) |
Key Features
- Integrated, low EMI, isolated dc-to-dc converter
- Passes EN 55032 Class B with margin on a 2-layer PCB
- Cable invert smart feature to correct reversed cable connections
- Full receiver fail-safe feature
- High speed data rate up to 25 Mbps (ADM2865E/ADM2867E) and low speed 500 kbps (ADM2861E/ADM2863E) for EMI control
- Flexible power supplies with VSEL pin to select VISO supply of 5 V or 3.3 V
- PROFIBUS compliant for 5 V VISO
- Short-circuit, open-circuit, and floating input receiver fail-safe
- Full hot swap support (glitch free power-up/power-down)
- Safety and regulatory approvals including UL 1577, IEC / EN / CSA 62368-1, and more
Applications
- Heating, ventilation, and air conditioning (HVAC) networks
- Industrial field buses
- Building automation
- Utility networks
- Energy meters
Q & A
- What is the isolation voltage of the ADM2861EBRNZ-RL7?
The isolation voltage is 5.7 kV rms. - What are the ESD protection levels of this device?
The device offers ±12 kV IEC61000-4-2 contact discharge and ±15 kV IEC61000-4-2 air discharge ESD protection. - What are the data rates supported by this transceiver?
The device supports up to 25 Mbps (ADM2865E/ADM2867E) and 500 kbps (ADM2861E/ADM2863E) data rates. - What is the operating temperature range of the ADM2861EBRNZ-RL7?
The operating temperature range is -40°C to +105°C. - Does the device support hot swap?
Yes, it supports full hot swap with glitch-free power-up and power-down. - What safety and regulatory approvals does the device have?
The device has approvals including UL 1577, IEC / EN / CSA 62368-1, and more. - What is the common-mode transient immunity of this device?
The common-mode transient immunity is 250 kV/µs. - How many bus nodes can the device support?
The device can support up to 192 bus nodes. - What is the receiver input impedance?
The receiver input impedance is 72 kΩ. - What package type is the ADM2861EBRNZ-RL7 available in?
The device is available in a 28-lead, fine pitch SOIC_W package.
