Austriamicrosystems expanded its analog switch portfolio with the AS1747, a dual SPDT (single-pole/double-throw) low-voltage analog signal switch. The AS1747 combines the on-resistance of 0.4Ohm with an channel-to-channel matching of less then 0.03Ohm. Additionally, the AS1747 shows a on-resistance flatness of 0.25Ohm. Altogether this improves total harmonic distortion (THD+N) to 0.01% and yields an audio signal quality.

The AS1747 can handle negative signals with a single positive 1.8V to 5.5V power supply and is available in a 10-pin TDFN(3x3mm) package suitable for operating environments ranging from -40 to +85°C.