Chipanalog CA-IS2092VW

The CA-IS2092x series are isolated RS-485/RS-422 transceivers with an integrated isolated DC-DC converter, eliminating the need for a separate isolated power supply in space-constrained isolated designs. All devices in this series feature logic input and output buffers separated by a silicon dioxide (SiO2) insulation barrier, providing galvanic isolation up to 3.75kV rms (60 seconds) and a typical common-mode transient immunity of ±150kV/μs. The isolation improves data communication by breaking ground loops and reduces noise when significant ground potential differences exist between ports. The integrated DC-DC converter generates a 3.3V or 5V operating voltage for the cable side. The CA-IS2092x series is designed for multipoint operation, with bus pins offering high ESD protection up to ±20kV HBM. The receiver has a 1/8 unit load, allowing up to 256 transceivers (loads) to be connected on a common bus. These devices provide half-duplex transceivers, where driver and receiver enable pins allow any node to be configured as transmit or receive mode at any given time, reducing cable requirements. The CA-IS2092VW's dedicated logic supply input enables full compatibility with 2.5V to 5.5V logic levels on logic input/output lines. The CA-IS2092x series is available in a wide-body 16-pin SOIC package — the industry-standard isolated RS-485/RS-422 package — with an operating temperature range of -40°C to +125°C.

• High performance, compliant with RS-485 EIA/TIA-485 standard
• Data rate: 0.5Mbps
• 1/8 unit load, allowing up to 256 nodes on the bus
• Supply voltage range: 3V to 5.5V; CA-IS2092VW provides independent logic supply input
• Integrated DC-DC converter for cable-side power supply
• 3.3V and 5V output options available (V150 ≤ VCC)
• Highly integrated internal transformer
• Soft-start to reduce input inrush current
• Overload and short-circuit protection
• Thermal shutdown
• Integrated protection for reliable communication
• 3.75kVrms isolation voltage withstand for 60 seconds (galvanic isolation)
• Typical common-mode transient immunity: ±150kV/μs
• Long lifetime: >40 years
• ±20kV HBM ESD protection on bus I/O; ±6kV HBM ESD protection on logic I/O
• True fail-safe guarantees known receiver output state
• Wide operating temperature range: -40°C to 125°C
• Wide-body SOIC16-WB(W) package
• Safety regulatory certifications
• VDE certified per DIN EN IEC60747-17(VDE 0884-17):2021-10
• UL certified per UL1577
• CQC certified per GB4843.1-2022
• TUV certified per EN61010-1:2010+A1

• Industrial automation equipment
• Grid infrastructure
• Solar inverters
• Motor drives
• HVAC