MAX3491AEASD+ Datasheet PDF - Maxim Integrated

The MAX3491AEASD+ is a 3.3V powered, ±20KV ESD protected slew rate limited RS485/RS422 transceiver in 14 pin NSOIC package. It is optimized for extended cable runs in noisy environments and operates from a single 3.3V supply. The receiver features unit load input impedance allowing up to 32 devices on a single bus. Each transceiver includes a fail-safe receiver ensuring that the receiver output (RO) is high when inputs are shorted, open or connected to a tri-state bus. It features enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±20KV HBM ESD, ±15KV air gap ESD and ±8KV contact ESD in accordance to IEC 61000-4-2.

● Integrated protection increases robustness

● Full duplex communication

● Short circuit protected outputs

● Hot swap capability eliminates false transitions during power-up or hot insertion

● Maximum data rate of 20Mbps

● Supply voltage range from 3V to 3.6V

● Supply current of 1.9mA and shutdown supply current of 10µA

● Operating temperature range from -40° to +125°C