STMicroelectronics introduces a pair of SPDT analog switches whose packaging and low insertion losses make them suited 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 1.8 V compatible digital control pins. The switches are housed in a QFN package that is 3 × 3 mm. The on-resistance of the devices is less than 0.5 Ω. Switching times are less than 300 ps. The on-resistance of the switches is matched to within 0.06 Ω. The parts operate at supply voltages of between 1.65V and 3.6V and are designed to support high current up to ± 500 mA 10% duty cycle. Current consumption is less than 1 mA, making the parts suitable for use in battery-powered systems.
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