CMT83085 High-Reliability Isolated Half-Duplex RS-485 Transceiver
The CMT83085 is a high-reliability isolated half-duplex RS-485 transceiver built on CMOSTEK digital isolation technology, featuring UL1577-certified 5kVrms insulation withstand voltage and high electromagnetic immunity. Equipped with ±12kV bus ESD protection, true fail-safe circuitry, and 1/8-unit-load input impedance supporting up to 256 nodes, it delivers slew-rate limited 12Mbps data transmission in a robust wide-body 16-pin SOIC package.
5 kVrms (UL1577)
Up to 12 Mbps
±12 kV Bus ESD
Up to 256 Nodes
2.5V to 5.5V
-40°C to +125°C
| Product Model | CMT83085 (Related Series: CMT83087) |
| Transceiver Type | Isolated Half-Duplex RS-485 / RS-422 Transceiver |
| Isolation Technology | CMOSTEK digital isolation; certified to UL1577 for 5kVrms withstand isolation with low emissions and high EMI immunity |
| Bus Protection & Loading | ±12kV system-level ESD to GND2 on bus pins; 1/8 unit-load receiver input impedance allowing up to 256 bus transceivers |
| Signal Integrity & Safety | True fail-safe receiver output (open/short circuit protection); slew-rate limited drivers to minimize EMI and line reflections |
| Propagation & Lifetime | Low propagation delay architecture; operational operating lifetime rated for more than 40 years |
| Package & Dimensions | Wide-Body 16-pin SOIC (WB SOIC-16) | 10.4 x 7.5 mm |
| Target Applications | Industrial automation and control, isolated RS-485 communication loops, smart electric and water metering, security and protection monitoring systems |
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