ADM2582E/ADM2587E is a signal and power isolated RS-485 transceiver with ±15 kV ESD protection from Analog Devices. It can be configured as half or full duplex and integrates an isoPower® isolated DC/DC converter. It has high common-mode transient immunity (>25 kV/μs) and thermal shutdown protection. It meets the ANSI/TIA/EIA-485-A-98 and ISO 8482:1987(E) standards and is UL 1577 certified.
The ADM2582E and ADM2587E are fully integrated signal‑and‑power isolated RS‑485/RS‑422 transceivers. They feature ±15 kV ESD protection, an integrated isoPower dc‑to‑dc converter, and operate from a single 3.3 V or 5 V supply. The devices support half‑ or full‑duplex operation, include active driver and receiver enable pins, and provide thermal shutdown and current‑limiting protection.
These transceivers are intended for industrial field networks and multipoint data‑transmission systems, allowing up to 256 nodes on a single bus. The handbook includes detailed specifications, timing diagrams, pin descriptions, typical performance curves, PCB layout guidance, and regulatory approvals (UL, VDE).
| ADM2582E data rate | 16 Mbps |
|---|---|
| ADM2587E data rate | 500 kbps |
| Supply current (ADM2587E, 3.3 V, 100 Ω load) | 90 mA |
| ESD protection on RS‑485 pins | ±15 kV |
| Operating temperature range | −40 °C to +85 °C |
| Rated dielectric insulation voltage | 2500 V rms (1‑minute) |
| Maximum bus nodes | 256 |
The ADM2582E supports a maximum data rate of 16 Mbps.
Up to 256 transceivers can be connected on one bus.
The RS‑485 input and output pins are protected against ±15 kV ESD.
Both devices operate from –40 °C to +85 °C.