Product category:
Communications ICs (Wired)
News Release from: Intersil | Subject: ISL328xE series
Edited by the Electronicstalk Editorial
Team on 04 October 2007
Serial receivers are well protected
Fully featured RS485/RS422 receivers provide 1/8 unit load input resistance and full fail-safe operation, along with enhanced ESD protection on the Rx input pins.
New from Intersil, the ISL328xE series of single RS485/RS422 receivers feature IEC61000-level ESD protection (+/-16.5kV air gap and +/-9kV contact) and boast an ultralow supply current requirement in a small SOT-23 and TDFN packages The ISL328xE are fully featured receivers that provide 1/8 unit load input resistance (allowing up to 256 devices on the bus) and full fail-safe (open, short, and terminated but undriven), along with enhanced ESD protection on the Rx input pins
This article was originally published on Electronicstalk on 8 Jan 2001 at 8.00am (UK)
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These receivers all operate from a wide supply range of 3.0 to 5.5V and at datarates up to 20Mbit/s.
This family of receivers has low maximum quiescent supply current of 500uA a factor of 30 times less than the value of the nearest competitor making a significant improvement in power critical applications.
Additionally, the devices with an enable pin (ISL3281E, ISL3282E and ISL3283E) can be put into a low power shutdown mode (20uA maximum) to reduce power consumption further whenever the receiver is disabled.
The ISL3281E has an active high enable, while the ISL3282E and ISL3283E feature an active low enable for design flexibility.
The ISL3282E and the ISL3284E have onboard level translators on the enable input and Rx output pins, which simplify the design of mixed voltage systems.
The logic supply pin can be connected to a lower voltage processor supply to level shift the input and output voltages to values compatible with the processor supply.
This eliminates the need for external level translators.
The ISL328xE family is available in a variety of configurations: ISL3280E in a 5-lead SOT-23 package; ISL3281E in a 6-lead SOT-23 package; and ISL3283E and ISL3284E both in 6-lead SOT-23 packages.
All of these SOT-23 packages occupy a 3 x 3mm footprint.
The ISL3282E is housed in a tiny 2 x 3mm 8-lead TDFN package for additional board space savings and enhanced thermal performance.
All versions are offered in a choice of industrial (-40 to +85C) and extended industrial (-40 to +125C) temperature ranges, for enhanced overall reliability.
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