The document introduces ADM2482E/ADM2487E, a 2.5 kV isolated RS-485 transceiver with an integrated transformer driver. It features an integrated oscillator driver, ±15 kV ESD protection on RS-485 input/output pins, compliance with TIA/EIA-485-A-98 and ISO 8482:1987(E) standards, etc.
The ADM2482E and ADM2487E are isolated data transceivers that provide +15 kV ESD protection and support high‑speed half‑duplex or full‑duplex communication on multipoint RS‑485/RS‑422 networks. They integrate an oscillator driver, a three‑state differential line driver, and a differential input receiver in a single iCoupler™ package, and are available in a 16‑lead wide‑body SOIC.
These devices are intended for industrial field networks, isolated RS‑485/RS‑422 interfaces, and other multipoint data transmission systems. They meet TIA/EIA‑485‑A‑98, ISO 8482:1987, UL 1577, and VDE certifications, and operate over a temperature range of –40 °C to +85 °C.
| Data Rate | 500 kbps (ADM2487E) / 16 Mbps (ADM2482E) |
|---|---|
| Supply Voltage | 5 V or 3.3 V operation |
| Isolation Voltage | 2500 Vrms for 1 minute |
| Operating Temperature Range | –40 °C to +85 °C |
| Short‑Circuit Output Current | 250 mA |
The ADM2482E supports up to 16 Mbps, while the ADM2487E supports up to 500 kbps.
They are rated for 2500 Vrms isolation for a 1‑minute test.
Both 5 V and 3.3 V supplies are supported on the logic side.
The devices operate from –40 °C up to +85 °C.