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Description
The IL3022E low cost RS-485/RS422 isolated transceiver from NVE is designed to galvanically isolate bidirectional data communication over balanced transmission lines. The IL3022 series delivers at least 1.5V into a 27Ω load for excellent data integrity over long cables, and is also compatible with 3V input supplies, allowing interfacing to standard microcontrollers without additional level shifting. A unique ceramic/polymer composite barrier provides excellent isolation and virtually unlimited barrier life. This particular device uses NVE’s patented IsoLoop spintronic Giant Magnetoresistance (GMR) technology and comes in a 0.3″ 16-pin SOIC package.
- Low cost surface-mount RS-485/RS422 isolated transceiver
- Power supply VDD1 3.3V to 5V, VDD2 4.5V to 5.5V
- Data rate of 4Mbps
- Bus ESD protection of 7kV
- Isolation voltage of 2.5kVRMS per UL 1577
- Working voltage of 600VRMS per VDE V 0884-10
- Temperature range of −40°C to +85°C
- Typical common mode rejection 50kV/μs (30kV/μs minimum)
- Supports up to 32 nodes
- Thermal shutdown protection
- Typical propagation delay of 48ns (5V)
- UL 1577 recognised; VDE V 0884-10 certified
- 0.3″ 16-pin SOIC package
The IL3011E has current limiting and thermal shutdown features to protect against output short circuits and bus contentions that may cause excessive power dissipation, and also incorporate a “fail-safe if open” design, ensuring a logic high on R if the bus lines are disconnected or “floating.”
Typical applications for the IL3022 series include:
- Factory automation
- Industrial control networks
- Building environmental controls
- Equipment covered under IEC 61010-1 Edition 3
- 5kVRMS rated IEC 60601-1 medical applications
The below table gives the recommended operating conditions for the NVE IL3022E isolated RS485/RS422 transciever:
