Intersil has introduced a new family of quad RS485 and RS422 receivers featuring wide voltage and temperature ranges.
The new ISL3217x and ISL3227x series feature wide supply voltage operating ranges of 3 V to 5,5 V and extended temperature ranges to 125°C, making them suitable for motor controllers, encoders, factory automation and process control networks.
The ISL32173E, ISL32175E and ISL32177E are high data-rate receivers that operate at up to 80 Mbps. A maximum propagation delay skew of 8 ns guarantees excellent part-to-part matching. The ISL32273E, ISL32275E and ISL32277E are reduced supply current versions that operate at data rates up to 20 Mbps. Each receiver also features low input currents of ±200 μA, and presents a one-fourth unit load to the RS485 bus, allowing up to 128 receivers on the bus.
All of the new ICs also feature ESD ratings of ±16,5 kV protection, meeting HBM and IEC61000-4-2 standards on receiver inputs. The new ISL32177 and ISL32277 include a logic VL supply pin. The VL supply sets the switching points of the enable inputs, and the receiver output’s VOH, to levels compatible with a lower supply voltage in mixed-voltage systems. This built-in voltage level translation eases operation in mixed-supply systems.
The devices are available in 16-lead narrow SOIC and 16-lead TSSOP packages featuring industry-standard group or paired enables. The ISL32177 and ISL32277 come in compact 4 x 4 24-lead QFN packages, with individual channel and group-enable functions.
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