The ADM1485 is a 5V low power EIA RS-485 transceiver that supports 30Mbps data rate and a -7V to +12V bus common-mode range. It has thermal shutdown protection and short-circuit protection. The driver propagation delay is 10ns and the receiver propagation delay is 15ns.
The ADM1485 is a 5 V low‑power EIA RS‑485 transceiver featuring high‑speed, low‑power BiCMOS technology, thermal shutdown protection, and short‑circuit protection. It provides a driver propagation delay of 10 ns, receiver propagation delay of 15 ns, and high‑Z outputs when powered off.
Typical applications include low‑power RS‑485 systems, DTE‑DCE interfaces, packet switching, LANs, data concentration, and ISDN. The device is available in PDIP, SOIC, and MSOP packages and supports up to 32 transceivers on a single bus, with only one driver enabled at a time.
| Data Rate | 30 Mbps |
|---|---|
| Driver Propagation Delay | 10 ns |
| Receiver Propagation Delay | 15 ns |
| Supply Voltage | 5 V |
| Common‑Mode Voltage Range | -7 V to +12 V |
| Thermal Shutdown Protection | Enabled |
| Short‑Circuit Protection | Enabled |
| High‑Z Outputs (Power Off) | Enabled |
The ADM1485 operates from a single 5 V supply.
Up to 32 transceivers may be connected simultaneously, but only one driver should be enabled at a time.
The driver propagation delay is 10 ns.
It includes thermal shutdown protection and short‑circuit protection.