Analog Devices ADM2795EBRWZ Transceivers are 5kVrms signal-isolated RS-485 transceivers. The transceivers provide up to �42V of AC/DC peak bus overvoltage fault protection on the RS-485 bus pins. Developed using iCoupler� technology, the transceivers combine a 3-channel isolator, RS-485 transceiver, and IEC electromagnetic compatibility (EMC) transient protection into a single package. These RS-485/RS-422 transceivers offer IEC 61000-4-5 Level 4 surge protection, which enables up to �4kV protection on the RS-485 bus pins. ADM2795EBRWZ has IEC 61000-4-4 Level 4 EFT protection up to �2kV and IEC 61000-4-2 Level 4 ESD protection on the bus pins. This protection allows the ADM2795EBRWZ Transceivers to withstand up to �15kV on the transceiver interface pins without latching up. ADM2795E's extended common-mode input range of �25V improves data communication reliability in noisy environments. The ADM2795EBRWZ Transceivers operate over wide power supply ranges, using a 1.7V to 5.5V VDD1 power supply range. This allows the transceivers to interface to low-voltage logic supplies. When operating over a 3V to 5.5V VDD2 power supply, the ADM2795EBRWZ transceivers are fully TIA/EIA RS-485/RS-422 compliant.
Feature
- 5 kV rms isolated RS-485/RS-422 transceiver
- ±42 V ac/dc peak fault protection on RS-485 bus pins
- Certified Level 4 EMC protection on RS-485 A, B bus pins
- Common-mode input range of -25 V to +25 V
- High common-mode transient immunity: more than 75 kV/µs
- Robust noise immunity (tested to the IEC 62132-4 standard)
Applications
- Heating, ventilation, and air conditioning (HVAC) networks
- Industrial field buses
- Building automation
- Utility networks
(Picture: Pinout)
