QUAD, ±16.5kV ESD Protected, 3.0Vto 5.5V, Low Power, RS-422 TransmittersThe Intersil ISL32x7xE are ±16.5kV IEC61000-4-2 ESDProtected, 3.0V to 5.5V powered, QUAD transmitters forbalanced communication using the RS-422 standard. Thesedrivers have very low output leakage currents (±10μA), sothey present a low load to the RS-422 bus.Driver (Tx) outputs are tri-statable, and incorporate a hotplug feature to keep them disabled during power-up anddown. Versions are available with a common EN/EN(‘172 pinout), a two channel EN12/EN34 (‘174 pinout), or aversatile combination of individual and group channelenables (see Table 1).The ISL32372E, ISL32374E utilize slew rate limited driverswhich reduce EMI, and minimize reflections from improperlyterminated transmission lines, or from unterminated stubs inmultidrop and multipoint applications. Drivers on the otherversions are not limited, so they can achieve the 10Mbps or32Mbps data rates. All versions are offered in Industrial andExtended Industrial (-40°C to +125°C) temperature ranges.