ADM2687EBRIZ – 5 kV rms Signal & Power Isolated RS-485 Transceiver
Package
16-Lead Wide-Body SOIC (Increased Creepage, >8mm)
Compliance
RoHS Compliant
Grade
Industrial
Core Electrical Parameters
Parameter
Value
Unit
Isolation Voltage
5000
V rms
Data Rate
500
kbps
Supply Voltage
3.3 / 5.0
V
Supply Current (max)
120
mA
Nominal Supply Current
55
mA
Number of Drivers / Receivers
1 / 1
—
Max Nodes per Bus
256
—
Common-Mode Transient Immunity
>25
kV/µs
ESD Protection (RS-485 pins)
±15
kV
Propagation Delay
63 / 64
ns
Duplex Configuration
Full / Half duplex (configurable)
—
Operating Temperature Range
-40 to +85
°C
Core Features & Advantages
The ADM2687EBRIZ delivers a fully integrated signal-and-power isolated RS-485 solution in a single IC, eliminating the need for external isolation components.
Primary Function: 5 kV rms signal and power isolated RS-485/RS-422 transceiver with integrated isoPower DC-DC converter for high-voltage industrial communication.
Advantages:
Integrated Isolated Power (isoPower): On-chip isolated DC-DC converter removes the need for an external isolation power supply module, reducing BOM cost by 30-50% and shrinking PCB area significantly.
5 kV rms Reinforced Isolation: Provides reinforced galvanic isolation between bus and logic sides with >8mm creepage/clearance, meeting IEC 61010-1 safety requirements for industrial equipment.
±15 kV ESD + Fault Protection: RS-485 I/O pins withstand ±15 kV HBM ESD strikes, while open-circuit and short-circuit fail-safe receiver inputs protect against bus wiring faults.
Typical Application Scenarios
Industry: Industrial Automation / Energy Metering / Building Control
Equipment: PLCs, energy meters, motor drives, HVAC controllers, factory fieldbus nodes
Use Cases:
Isolated RS-485 communication link in Modbus RTU networks connecting PLCs to remote I/O modules across noisy factory floors.
Smart energy metering with isolated data acquisition channel, ensuring safety compliance while reading meters on live high-voltage lines.
Building automation bus node requiring full/half-duplex RS-485 with 256-node multi-drop capability and hot-swap robustness.
Market Reference Price
Market
Price Range
Currency
Huaqiangbei Spot
$8.00 – $14.00
USD
Overseas B2B
$7.65 – $20.71
USD
Related Models Comparison
Model
Difference
Application
ADM2682E
Same isolation, slew-rate limited (250 kbps), lower EMI
