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

Product Details

General Description

The CA-IS2082B device is a galvanically-isolated RS-485/RS-422 transceiver that has superior isolation and RS-485 performance to meet the critical needs of the industrial applications. This device has the logic input and outputbuffers separated by a silicon oxide (SiO2) insulation barrier that provides galvanic isolation, features up to 3000VRMS (60s) of galvanic isolation and ±100kV/μs typical CMTI. Isolation improves communication by breaking ground loops and reduces noise where there are large differences in ground potential between different ports.

The CA-IS2082B is designed for high-speed (up to 5Mbps) multidrop operation with high ESD protection of up to ±8kV HBM and ±12kV IEC 61000-4-2 Contact Discharge ESD protection on bus I/O pins. 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 offer a more robust system design for reliable data transmission in the harsh environments. This device provides half-duplex transceiver, 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-IS2082B is available in 16-pin SSOP package which is the industry standard isolated RS-485/RS-422 package, and operates over -40°C to +125°C temperature range.

High-Performance and Compliant with RS-485 EIA/TIA-485 StandardUp to 5Mbps 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 Communication3.0kVRMS withstand isolation voltage for 60s (galvanic isolation)
±100kV/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 ApprovalsDIN VDE V 0884-11:2017-01 isolation
UL1577 certification, 3kVRMS @ 1 minute
IEC 60950-1, IEC 62368-1 and IEC61010-1 certification
CQC, TUV and CAS certifications

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

Device information
Part NumberPackage Package size (NOM)
CA-IS2082B SSOP16(B) 4.9 mm × 3.9 mm
Simplified Channel Structure

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