This file is an introduction to ADM485E/ADM487E/ADM1487E data transceivers. The transceiver has ±15 kV ESD protection, suitable for half-duplex communication, and operates at 5V. The data rates are ADM487E: 250 kbps, ADM485E/ADM1487E: 2.5 Mbps.
The ADM485E, ADM487E and ADM1487E are 5 V, low‑power, half‑duplex RS‑485/RS‑422 transceivers that provide ±15 kV human‑body‑model ESD protection. They are designed for balanced data transmission, comply with TIA/EIA RS‑485 and RS‑422 standards, and are available in 8‑lead SOIC packages.
The devices support data rates up to 2.5 Mbps (ADM485E/ADM1487E) or 250 kbps (ADM487E), feature thermal shutdown and short‑circuit protection, and operate over an industrial temperature range of –40 °C to +85 °C. They are suitable for industrial control, energy metering, lighting, telecommunications and automotive applications.
| Supply voltage | 5 V ± 10 % |
|---|---|
| Maximum data rate (ADM485E/ADM1487E) | 2.5 Mbps |
| Maximum data rate (ADM487E) | 250 kbps |
| ESD protection | ±15 kV HBM |
| Operating temperature range | –40 °C to +85 °C |
| Package type | 8‑lead SOIC |
The devices operate from a 5 V supply with a tolerance of ±10 %.
They provide ±15 kV human‑body‑model ESD protection on the I/O pins.
The ADM485E can transmit at up to 2.5 Mbps.
They are rated for operation from –40 °C to +85 °C.