ISO1450 - Texas Instruments

ISO1450 RS-485/RS-422 Transceiver

The ISO14xx devices are galvanically-isolated differential line transceivers for TIA/EIA RS-485 and RS-422 applications. These noise-immune transceivers are designed to operate in harsh industrial environments. The bus pins of these devices can endure high levels of IEC electrostatic discharge (ESD) and IEC electrical fast transient (EFT) events which elimin.

Features

•1 Compatible with TIA/EIA-485-A
• PROFIBUS compatible at 5-V bus-side supply
• Bus I/O protection
  – ± 30 kV HBM
  – ±16 kV IEC 61000-4-2 Contact discharge
  – ± 4 kV IEC 61000-4-4 Electrical fast transient
• Low-EMI 500-kbps, 12 Mbps and 50 Mbps Data Rates
• 1.71-V to 5.5-V logic-side supply (VCC1), 3-V to 5.5-V bus-side supply (VCC2)
• Failsafe receiver for bus open, short, and idle
• 1/8 Unit load up to 256 nodes on bus
• 100-kV/µs (typical) high common-mode transient immunity
• Extended temperature range from
  –40°C to +125°C
• Glitch-free power-up and power-down for hot plugin
• Wide-body SOIC.