Isolated RS-485/RS-422 transceivers
Isolated RS-485/RS-422 transceivers

Product Details

General Description

The CA-IS308x family of devices is a galvanically-isolated RS-485/RS-422 transceiver that has superior isolation and RS485 performance to meet the needs of the industrial applications. All devices of this family have the logic input and output buffers separated by a silicon oxide (SiO2) insulation barrier that provides galvanic isolation, features up to 5000VRMS (60s) of galvanic isolation and ±150kV/μs typical CMTI. Isolation improves communication by breaking ground loops and reduces noise where there are large differences in ground potential between ports.

The CA-IS308x family of devices is designed for high-speed (up to 10Mbps) multidrop operation with high ESD protection of up to ±8kV HBM and ±12kV IEC 61000-4-2 Contact Discharge ESD protection. The receiver is 1/8-unit load, allowing up to 256 transceivers (loads) on a common bus. Maintaining multidrop operation and increasing the maximum data rate offers a more robust system design for reliable communication. The CA-IS3080 and CA-IS3086 full-duplex transceivers are designed for bidirectional data communications on multipoint bus transmission lines simultaneously. The CA-IS3082 and CS-IS3088 provide half-duplex transceivers, the driver and receiver enable pins let any node at any given moment be configured in either transmit or receive mode which decreases cable requirements.

The CA-IS308x series devices are available in wide-body SOIC16 package which is the industry standard isolated RS-485/RS-422 package, and operate over -40°C to +125°C temperature range.

High-Performance and Compliant with RS-485 EIA/TIA-485 StandardUp to 10Mbps data rate
1/8 unit load enables up to 256 nodes on the bus
2.5V to 5.5V logic side supply voltage and 4.5 V to 5.5 V bus side supply voltage
Integrated Protection for Robust Communication5kVRMS withstand isolation voltage for 60s (galvanic isolation)
±150kV/μs typical CMTI
High lifetime: >40 years
±8kV Human Body Model (HBM) ESD and ±12kV IEC 61000-4-2 Contact Discharge ESD protection on bus I/O, ±6kV HBM ESD protection on logic I/O
Short-circuit protection and thermal shutdown
True fail-safe guarantees known receiver output state
Wide operating temperature range: –40°C to 125°C
Safety Regulatory ApprovalsVDE 0884-11 and DIN EN & IEC 62368-1 VDE reinforced isolation (pending)
UL according to UL1577
IEC 62368-1, IEC 61010-1, GB 4943.1-2011 and GB 8898-2011, CQC reinforced insulation certifications

◎ Industrial Automation Equipment
◎ Grid infrastructure
◎ Solar inverter
◎ Motor drivers

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