Analog Devices MAX13081EASA+ RS422/RS485 transceiver, full duplex, 250 kbps, 4.5V-5.5V supply, 8-SOIC, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Supply voltage | 4.5V ~ 5.5V |
| Protocol | RS422, RS485 |
| Operating temperature | -40°C ~ 125°C |
| Duplex | Full |
| Package | Tube |
| Data rate | 250kbps |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 100 mV |
| Number of drivers (Receivers) | 1/1 |
At 250 kbps, this transceiver is sized for Modbus RTU, PROFIBUS DP, and similar fieldbus links where cable runs stretch beyond 100 m. The full-duplex capability lets you push data both directions simultaneously.
The 8-SOIC (0.154" body width, 3.90 mm) is a standard footprint shared by hundreds of RS485 transceivers. Board layout is straightforward — no thermal pad, no hidden vias.
The data rate is 250 kbps. This is suitable for Modbus RTU at 19200 baud or 38400 baud with margin, and for PROFIBUS DP at 12 Mbps — but for PROFIBUS you need a faster transceiver like the MAX13085.
Yes, it supports both RS422 and RS485 protocols. The full-duplex capability is standard for RS422 point-to-point links, and it also works on RS485 multi-drop buses when configured for half-duplex.
Pin-compatible alternatives include the MAX13082EASA+ (same package, 250 kbps, half-duplex) and the MAX13085EASA+ (250 kbps, half-duplex, same footprint). For a faster data rate, the MAX13081EASA+ has no direct pin-compatible speed upgrade — you would need to move to the MAX13082 family at 1 Mbps.