This document describes the features and characteristics of the ADM4850/ADM4851/ADM4852/ADM4853/ADM4854/ADM4855/ADM4856/ADM4857 models, which are 5V, slew-rate limited, half-duplex and full-duplex RS-485/RS-422 transceivers.
The ADM4850 family comprises half‑ and full‑duplex RS‑485/RS‑422 transceivers offering low‑EMI slew‑rate control, fail‑safe receiver inputs, and the ability to connect up to 256 devices on a single bus. Variants include ADM4850‑ADM4853 (half‑duplex) and ADM4854‑ADM4857 (full‑duplex) with data‑rate options ranging from 115 kbps to 10 Mbps.
The datasheet provides detailed electrical specifications, timing parameters, absolute maximum ratings, pin configurations, and ordering guides. It also lists automotive‑qualified parts and package options such as 8‑lead SOIC, LFCSP, and MSOP, enabling designers to select the appropriate device for industrial, automotive, or consumer applications.
| Data rate (ADM4850/ADM4854) | 115 kbps |
|---|---|
| Shutdown mode supply current | 5 pA (maximum) |
| Bus common‑mode voltage range | -7 V to +12 V |
| Operating temperature range | -40°C to +85°C |
| Package options | 8‑lead SOIC, LFCSP, MSOP |
Up to 256 transceivers can be connected on a single bus.
The shutdown mode current is a maximum of 5 pA.
ADM4854, ADM4855, ADM4856, and ADM4857 are the full‑duplex variants.