Product category: Communications ICs (Wired)
News Release from: Linear Technology Corp | Subject: LTC2801/2/3/4
Edited by the Electronicstalk Editorial Team on 21 June 2005
Frugal RS232 transceivers run from low
voltages
A new family of single and dual RS232 transceivers operate over an input supply range from 1.8 to 5.5V.
Linear Technology has introduced a family of single and dual RS232 transceivers that operate over an input supply range from 1.8 to 5.5V The low voltage accommodates systems powered from two alkaline, NiCd or NiMh cells, or systems that interface directly to a low voltage logic supply
This article was originally published on Electronicstalk on 28 Jul 2004 at 8.00am (UK)
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The LTC4557 is a dual SIM/smart-card power supply and level translator, which provides both 1.8 and 3V SIM power and digital signal level shifting from a 3 x 3mm QFN package.
This is beneficial for applications ranging from board-level diagnostics to portable instruments.
Offering low 1uA shutdown current and a 15uA receiver-active current, the ICs are an attractive solution for any application that communicates through the RS232 interface.
The LTC2802 and LTC2804 support up to 1Mbit/s datarates for proprietary diagnostic links.
The LTC2801 and LTC2803 are capable of rates as high as 250Kbit/s.
The ICs integrate a boost convertor for generating the required RS232 output signal levels.
Control pins invoke optional shutdown, receiver active and driver disable features.
The +/-10kV ESD protection on the RS232 pins guards against electrostatic discharges that can be encountered during operation, and eliminate the need for external components.
The LTC2801 and LTC2802 are single transceivers, offered in a tiny 3 x 4mm DFN package.
The LTC2803 and LTC2804 are dual transceivers offered in 16-lead SSOP and 16-lead DFN packages.
Specified over the commercial and industrial temperature ranges and available from stock, pricing begins at $1.60 each in 1000 piece quantities. Request a free brochure from Linear Technology Corp ...
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