The ADM483 is a low power differential line transceiver suitable for half-duplex data communication. This transceiver meets the EIA RS-485/RS-422 standard, offers data rates up to 250 kbps, and has a 100 nA supply current and low power consumption (120 µA). The ADM483 can output high-Z when disabled or powered off within a -7 V to +12 V common-mode range. This transceiver also features thermal shutdown and short-circuit protection, and is pin-compatible with MAX483, specified over the -40°C to +85°C temperature range, and available in an 8-lead SOIC package.
The ADM483 is a low‑power differential line transceiver designed for half‑duplex RS‑485/RS‑422 communication on multipoint buses. It features slew‑rate limiting for reduced EMI, thermal shutdown and short‑circuit protection, and a three‑state driver output that remains high‑impedance when disabled.
The device operates from a 5 V supply, supports up to 32 transceivers on a single bus, and is available in an 8‑lead SOIC package. Detailed specifications include data rate, timing, absolute maximum ratings, pin functions, and typical performance curves for temperature and load conditions.
| Supply Voltage (VCC) | 5 V ± 5% |
|---|---|
| Maximum Data Rate | 250 kbps |
| Shutdown Supply Current | 100 nA |
| Operating Temperature Range | -40°C to +85°C |
| Package | 8‑lead SOIC (R‑8) |
The ADM483 supports data rates up to 250 kbps.
Up to 32 transceivers can be placed on a single bus.
The device operates from a 5 V supply with a tolerance of ±5 %.
In shutdown mode the device draws only 100 nA.