Overview: DATASHEET ISL32172E, ISL32272E, ISL32372E, ISL32174E, ISL32274E, ISL32374E, ISL32179E FN6824 Rev 2.00 August 13, 2015 The Intersil ISL32x7xE are ±16.5kV IEC61000-4-2 ESD Protected, 3.0V to 5.5V powered, QUAD transmitters for balanced munication using the RS-422 standard. These drivers have very low output leakage currents (±10µA), so they present a low load to the RS-422 bus.
Driver (Tx) outputs are tri-statable, and incorporate a hot plug feature to keep them disabled during power-up and down. Versions are available with a mon EN/EN (‘172 pinout), a two channel EN12/EN34 (‘174 pinout), or a versatile bination of individual and group channel enables (see Table 1).
The ISL32372E, ISL32374E utilize slew rate limited drivers which reduce EMI and minimize reflections from improperly terminated transmission lines, or from unterminated stubs in multidrop and multipoint applications. Drivers on the other versions are not limited, so they can achieve the 10Mbps or 32Mbps data rates. All versions are offered in industrial and extended industrial (-40°C to +125°C) temperature ranges.
A 50% smaller footprint (pared to the TSSOP) is available with the ISL32179E’s QFN package.
