| Duplex | Half |
| Data rate (Max) (Mbps) | 1 |
| Isolation rating (Vrms) | 2500 |
| Integrated isolated power | No |
| Operating temperature range (C) | -40 to 85, -55 to 125 |
| Fail safe | Idle, Open, Short |
| HBM ESD (kV) | 16 |
| Surge voltage capability (Vpk) | 4000 |
- 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
- 4000-VPK VIOTM, 560-VPK VIORM per DIN V VDE
- APPLICATIONS
- Security Systems
- Chemical Production
- Factory Automation
- Motor and Motion Control
- HVAC and Building Automation Networks
- Networked Security Stations
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The ISO15 is an isolated half-duplex differential line transceiver while the ISO35 is an isolated full-duplex differential line driver and receiver for TIA/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.
These devices are ideal for long transmission lines because the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical barrier of the device is tested to provide isolatlion of 4000 VPK per VDE and 2500 VRMS per UL and CSA between the bus-line transceiver and the logic-level interface.
Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or nearby sensitive circuitry if they are of sufficient magnitude and duration. These isolated devices can significantly increase protection and reduce the risk of damage to expensive control circuits.
