Analog Switches are suited for portable instruments.

Press Release Summary:




Quad (STG3699) and dual (STG3684) SPDT analog switches include multiple Single Pole Dual Trough cells and can work in bi-directional mode using 1.8 V compatible digital control pins. Housed in 3 x 3 mm QFN packages, they offer on-resistance of less than 0.5 Ohm and switching times of less than 300 ps. Characteristics include operating voltages of 1.65-3.6 V, support for current up to ±500 mA 10% duty cycle, and less than 1 mA current consumption.



Original Press Release:



Analog Switches from STMicroelectronics Shrink to Fit Smart Mobile Phones and Consumer Applications



Very low on-resistance reduces audio and video distortion

Geneva, October 17, 2003 - STMicroelectronics (NYSE: STM) has introduced a pair of SPDT analog switches whose packaging and low insertion losses make them ideal for use in consumer products including audio and video devices, cellphones, notebook PCs, PDA and many forms of portable instrumentation.

The STG3699 is a quad SPDT analog switch and the STG3684 is a dual SPDT analog switch. They include multiple "Single Pole Dual Trough" cells and can work in bi-directional mode, using 1.8V compatible digital control pins. The switches are housed in a QFN package that is just 3 x 3mm, making them useful where space is at a premium.

The on-resistance of the devices is less than 0.5Ohm. This reduces distortion to a minimum in audio circuits, ensuring high-fidelity signal routing for products such as cellular phones. The low on-resistance of the parts also means low insertion losses in video applications. Switching times are less than 300ps.

The on-resistance of the switches is matched to within 0.06Ohm, which is useful when switching differential signals.

The parts operate at supply voltages of between 1.65V and 3.6V and are designed to support high current up to ±500mA 10% duty cycle. Current consumption is less than 1mA, making the parts suitable for use in battery-powered systems. The products are available now at prices ranging from $1.00 to $1.20 for quantities of 1K.

All inputs and outputs are protected against static discharge and transient excess voltages.

Further information on these products is available at www.st.com/stdlogic . The complete datasheets can be found on line at the following URLs:

STG3699: st.com/stonline/books/pdf/docs/9486.pdf

STG3684: http://st.com/stonline/books/pdf/docs/9485.pdf

About STMicroelectronics

STMicroelectronics is a global leader in developing and delivering semiconductor solutions across the spectrum of microelectronics applications. An unrivalled combination of silicon and system expertise, manufacturing strength, Intellectual Property (IP) portfolio and strategic partners positions the Company at the forefront of System-on-Chip (SoC) technology and its products play a key role in enabling today's convergence markets. The Company's shares are traded on the New York Stock Exchange, on Euronext Paris and on the Milan Stock Exchange. In 2002, the Company's net revenues were $6.32 billion and net earnings were $429.4 million. Further information on ST can be found at www.st.com.

STMicroelectronics, Inc.
Lexington Corporate Center
10 Maguire Road
Bldg. 1, 3rd Floor
Lexington, MA 02421
(781) 861 2650
www.st.com

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