隔离3.3 -V全和半双工RS -485收发器 ISOLATED 3.3-V FULL AND HALF-DUPLEX RS-485 TRANSCEIVERS
Description
The ISO15 is an isolated half-duplex differential line transceiver while the ISO35 is an isolated full-duplex
differential line driver and receiver for A/EIA 485/422 applications. The ISO15M and ISO35M have
extended ambient temperature ratings of –55°C to 125°C while the ISO15 and ISO35 are specified over
–40°C to 85°C.
Features
• Meets or Exceeds TIA/EIA RS-485 Requirements
• 1/8 Unit Load – Up to 256 Nodes on a Bus
• Signaling Rates up to 1 Mbps
• Thermal Shutdown Protection
• Low Bus Capacitance – 16 pF Typical
• 50 kV/μs Typical Transient Immunity
• Fail-safe Receiver for Bus Open, Short, Idle
• 3.3-V Inputs are 5-V Tolerant
• Safety and Regulatory Approvals
– 4000-VPK VIOTM, 560-VPK VIORM per DIN V VDE V 0884-10 VDE V 0884-10:2006-12 and DIN EN 61010-1
– 2500 VRMS Isolation Rating per UL 1577
– 2500 VRMS Isolation Rating per CSA CA5A and IEC 60950-1
Applications
• Security Systems
• Chemical Production
• Factory Automation
• Motor and Motion Control
• HVAC and Building Automation Networks
• Networked Security Stations