DATASHEET
ISL32705E FN8949
Rev.1.00
Sep 29, 2017 Low-EMI Isolated Full-Duplex RS-485 Transceiver The ISL32705E is a galvanically isolated, full-duplex
differential bus transceiver, designed for bidirectional
data transmission meeting the RS-485 and RS-422
standards for balanced communication. All bus terminals
are protected against В±7kV ESD strikes without latch-up. Features 4Mbps data rate 2.5kVRMS isolation/600VRMS working voltage 3V to 5V power supplies The device uses Giant Magnetoresistance (GMR) as
isolation technology. A unique ceramic/polymer
composite barrier provides excellent isolation and nearly
unlimited barrier life. Drives up to 44 devices on an isolated bus The part is available in a 16 Ld wide-body SOIC package
providing true 8mm creepage distance. 44,000 year barrier life The ISL32705E delivers a minimum of 1.5V into a 54О©
differential load for excellent data integrity over long
cable lengths. Low EMC footprint The device is compatible with 3V and 5V input supplies,
allowing an interface to standard microcontrollers
without additional level shifting.
Current limiting and thermal shutdown features protect
against output short-circuits and bus contention that may
cause excessive power dissipation. Receiver inputs
feature a “fail-safe if open” design, ensuring a logic high
R-output if A/B are floating. Related Literature 50kV/Вµs (typical), 30kV/Вµs (minimum)
common-mode transient immunity 7kV ESD protection Thermal shutdown protection -40°C to +85°C temperature range Meets or exceeds ANSI RS-485 0.3” true 8mm 16 Ld SOIC package UL 1577 recognition pending VDE V 0884-10 certification pending Applications Factory automation Security networks For a full list of related documents, visit our website ISL32705E product page Building environmental control systems Industrial/process control networks Level translators (for example, RS-232 to RS-485) Equipment covered under IEC 61010-1 Edition 3 ISOLATION
BARRIER …
