40Mbps, +3.3V, RS-485 Half-Duplex Transceivers

The MAX14840E MAX14841E are +3.3V ESD-protected transceivers intended for half-duplex RS-485 Communication up to 40Mbps. These transceivers are optimized for high speeds over extended cable runs while maximizing tolerance to noise. The MAX14840E features symmetrical fail-safe and larg- er receiver hysteresis, providing improved noise rejec- tion and improved recovered signals in high-speed and long cable applications. The MAX14841E has true fail- safe receiver inputs guaranteeing a logic-high receiver output when inputs are shorted or open. The MAX14840E MAX14841E transceivers draw 1.5mA (typ) supply current when unloaded or when fully loaded with the drivers disabled. Hot-swap capability eliminates undesired transitions on the bus during power-up or hot insertion. The MAX14840E MAX14841E are available in 8-pin SO and small, 8-pin (3mm x 3mm) TDFN-EP packages. Both devices operate over the -40NC to +125NC automotive temperature range. By Maxim Integrated Products