
New family of RS-485/RS-422 transmitters and receivers simplifies industrial designs to improve reliability
The ISL3261x series includes the ISL32613/14 transmitters and the ISL32610/11/12 receivers. They each operate with voltage ranges from 1.8 V to 3.6 V, and data rates that reach 256 kbps. All of the devices in the series provide 16.5 kV ESD protection and operate at up to 125 degrees C, making them ideal for harsh environments and battery-powered or solar-powered sensor applications.
The ISL32613E/14E transmitters consume up to two orders of magnitude less current when operating at 1.8 V versus 3.6 V. The ISL32610/11/12E receivers feature symmetrical switching points (±200 mV) and increased hysteresis. The symmetrical switching points eliminate duty cycle distortion introduced by “full-failsafe” type receivers, while the larger hysteresis increases noise immunity.
Ultra-low bus currents of ±40 uA allow more than 256 transmitters on a network, with no repeaters, while still meeting the RS-485 specification’s 32-unit load maximum.
Availability and Pricing
The ISL3261x series transmitters and receivers are available in space saving SOT-23 packages, with 1,000-unit pricing at $0.85 each for the transmitters and $0.95 each for the receivers.
More information about ISL3261x RS-485/RS-422 transmitters and receivers at
www.intersil.com/products/deviceinfo.asp?pn=ISL32613E
