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The IL3422-3E high speed passive input RS-422 isolated transceiver from NVE is designed to galvanically isolate bidirectional data communication over balanced transmission lines. The IL3422 delivers at least 2V into a 100Ω load for excellent data integrity over long cables, and is also compatible with 3.3 V 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 0.15″ 16-pin SOIC package.
- Surface-mount high speed passive input RS-422 isolated transceiver
- Power supply VDD1 between 3.3V and 5V, VDD2 between 4.5V and 5V
- Data rate of 20Mbps
- Bus ESD protection of 15kV
- Isolation of 2,500 VRMS (1 minute)
- Temperature range of −40°C to +85°C
- Typical common mode rejection 20kV/μs
- No carrier or clock for low EMI emissions and susceptibility
- Thermal shutdown protection
- Propagation delay of 50ns (5V)
- Coil resistance of 85Ω
- UL 1577 recognised; IEC 60747-5-5 (VDE 0884) certified
- 0.15″ 16-pin SOIC package
The IL3422 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 IL3422 series include:
- Data loggers
- P.O.S. systems
- Security networks
- Building environmental controls
- Industrial control networks
- Factory automation
The below table gives the recommended operating conditions for the NVE IL3422 high speed passive input RS-422 differential bus transceiver series including the IL3422-3E:
