Analog Switch Exhibits Negative Signal Capability
Operating in audio applications, austriamicrosystems’ AS1747 dual SPDT analog signal switch presents a negative signal capability to allow designs without AC coupling capacitance. The IC shows on-resistance of 0.40 O, channel-to-channel matching of <0.03 O, on-resistance flatness of 0.25 O, and total harmonic distortion (THD+N) of 0.01%. The 10-pin 3 mm² TDFN-packaged unit handles negative signals with a single positive power supply from 1.8 V to 5.5 V in a temperature range from -40°C to 85°C.
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