Date: 04/05/2010

16.5kV ESD-protected RS-485 and RS-422 receivers from Intersil

Intersil has released a new family of small-footprint quad 16.5kV ESD-protected RS-485 and RS-422 receivers, the ISL3217x and ISL3227x series, featuring wide voltage and temperature ranges. They have as supply-voltage operating ranges of 3V to 5.5V and temperature ranges to 125 degrees C, thus can be used for motor controllers, encoders, factory automation, and process control networks.

The ISL32173E, ISL32175E and ISL32177E operate at high data rates of up to 80Mbps and has a maximum propagation delay skew of 8ns. The ISL32273E, ISL32275E and ISL32277E are reduced supply current versions that operate at data rates up to 20Mbps. Each receiver also features low input currents of ±200microAmps, and presents a one-fourth unit load to the RS-485 bus, allowing up to 128 receivers on the bus.

All of the new ICs meets HBM and IEC61000-4-2 standards on receiver inputs. The ISL32177 and ISL32277 include a logic VL supply pin. It sets 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. A full point-to-point 4-channel solution can be provided by pairing the quad receivers with Intersil's ISL32172/7/9 or ISL32272/4 quad transmitters.


Price: US$1.23 each in 1,000-piece quantities.
Availability: Now
Package: 16-lead narrow SOIC, 16-lead TSSOP packages, compact 4 x 4 24-lead QFN packages.

For more information visit: www.intersil.com