The ADM2483 is a half-duplex iCoupler® isolated RS-485 transceiver from Analog Devices. It features low power consumption, high reliability, and compliance with ANSI TIA/EIA RS-485-A and ISO 8482: 1987(E) standards. It supports 500 kbps data rate, employs slew rate-limited driver outputs, and is suitable for 5 V or 3 V operation. It features high common-mode transient immunity, true fail-safe receiver inputs, chatter-free power-up/power-down protection, 256 nodes on bus, thermal shutdown protection, UL recognition, CSA Component Acceptance Notice, VDE Certificate of Conformity, DIN EN 60747-5-2 (VDE 0884 Rev. 2): 2003-01, DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000 certification, and an operating temperature range of -40°C to +85°C.
The ADM2483 is a half‑duplex isolated RS‑485/RS‑422 transceiver that provides up to 500 kbps data rate, galvanic isolation, and fail‑safe receiver inputs. It operates from 3 V or 5 V logic supplies and supports up to 256 nodes on a single bus.
The document includes detailed electrical specifications, timing parameters, absolute maximum ratings, package characteristics, regulatory approvals, insulation and safety data, and a full pin‑out description for the 16‑lead SOIC package.
| Maximum Data Rate | 500 kbps |
|---|---|
| Operating Temperature Range | -40°C to +85°C |
| Rated Dielectric Insulation Voltage | 2500 Vrms (1‑minute) |
| Logic‑Side Supply Current | 25 mA (4.5 V < Von < 5.5 V) |
The ADM2483 supports a maximum data rate of 500 kbps.
Up to 256 transceivers can be placed on the same bus.
The device operates from –40 °C to +85 °C.
It is rated for 2500 Vrms insulation voltage for a 1‑minute duration.