General Description

The MAX3291/MAX3292 high-speed RS-485/RS-422 transceivers feature driver preemphasis circuitry, which extends the distance and increases the data rate of reliable communication by reducing intersymbol interference (ISI) caused by long cables. The MAX3291 is programmable for data rates of 5Mbps to 10Mbps, while the MAX3292 is programmable for data rates up to 10Mbps by using a single external resistor.

Features

♦ Preemphasis Increases the Distance and Data Rate of Reliable RS-485/RS-422 Communication

♦ Data Rate Optimized for 5Mbps to 10Mbps (MAX3291) Programmable up to 10Mbps (MAX3292)

♦ 100nA Low-Current Shutdown Mode

♦ Allow Up to 128 Transceivers on the Bus

♦ -7V to +12V Common-Mode Input Voltage Range

♦ Pin-Compatible with ’75180, MAX489, MAX491 MAX3080, MAX3083, MAX3086, MAX1482

Applications

    Long-Distance, High-Speed RS-485/RS-422 Communications

    Telecommunications

    Industrial-Control Local Area Networks