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AS1747 Analog Switches

Dual SPDT, audio switch with negative signal capability


  • Distorsion free down to -5.5V
  • Low on resistance
  • -90dB crosstalk


  • Ideal for audio signals
  • Low distorsion for audio
  • Ideal for stereo signals

Product parameters

Lines [#] 2
RON [Ohm] 0.45 / 0.85
RON Flatness [Ohm] 0.4
RON Matching [Ohm] 0.15
On/Off Time [ns] 400/200
Supply Voltage [V] 1.8 to 5.5
Package TDFN-10 (3x3)

General Description

The AS1747 SPDT (single-pole/double-throw) switch allows signals below ground to pass through without distortion, ideal for switching audio signals, due to the supply voltage from +1.8V to +5.5V and the low 0.4Ω on-resistance. This SPDT switch is available in space-saving 10-pin TDFN 3x3 packages and operate over the -40ºC to +85ºC extended temperature range.

This product suits for the following applications:

  • Cell phones
  • PDAs and hand-held devices
  • Notebook computers
  • MP3 players

Technical Documents

Name Type Description Version Language
AS1747_BD000304_1-00.png Block Diagram AS1747 Block Diagram 1-00 English
AS1747_DS000255_1-00.pdf Datasheet Document version 1.01 1-00 English
AS1747-50_DS000229_1-00.pdf Datasheet Document version 1.02 1-00 English
AS11xx_AS13xx_AS17xx_AS349x_AS36xx_EN000160_1-00.pdf EoL Notification AS11xx_AS13xx_AS17xx_AS349x_AS36xx (issued 2018-Oct) 1-00 English

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