ADM2484E is a 500 kbps, ESD protected, half-duplex, iCoupler, isolated RS-485 transceiver from Analog Devices. It has ±15 kV ESD protection, 500 kbps data rate, 5 V or 3.3 V operating voltage, high common-mode transient immunity, 256 nodes bus, thermal shutdown protection, 5000 V rms isolation voltage, 16-lead SOIC package.
The ADM2484E is an isolated RS‑485/RS‑422 transceiver offering up to 500 kbps data rates, +15 kV ESD protection, and 5000 V rms isolation for up to 1 minute. It supports both 5 V and 3.3 V operation and includes safety features such as thermal shutdown and fail‑safe receiver inputs.
The document provides full electrical specifications, timing diagrams, pin descriptions, package dimensions, and regulatory information. Typical application circuits for half‑duplex and full‑duplex networks are shown, with a maximum of 256 transceivers on a single bus.
| Data Rate | 500 kbps |
|---|---|
| ESD Protection | +15 kV |
| Isolation Voltage | 5000 V rms (1 min) |
| Operating Temperature Range | ‑40 °C to +85 °C |
The device is rated for 5000 V rms isolation voltage for 1 minute per UL1577.
Up to 256 transceivers (nodes) can be connected on the bus.
The logic side can be powered from 3.0 V to 5.5 V.
Yes, the device provides thermal shutdown protection.