austriamicrosystems has expanded its analog switch portfolio with the AS1747, a dual SPDT (single-pole/double-throw) low-voltage analog signal switch. The switch, which is the first within a family of switches with negative signal capability, allows designs without AC coupling capacitance in audio applications.
The IC combines low on-resistance of 0,4 Ω with channel-to-channel matching of less than 0,03 Ω, reducing the amount of signal deviations between channels. It exhibits on-resistance flatness of 0,25 Ω and total harmonic distortion (THD+N) of 0,01%.
The AS1747 can handle negative signals with a single positive 1,8 V to 5,5 V power supply and is available in a 10-pin TDFN (3 x 3 mm) package suitable for operating environments ranging from -40°C to +85°C.
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