The LTC3157 is an advanced CMOS analog switch fabricated with silicon gate CMOS technology. It achieves very low propagation delay while maintaining CMOS low power dissipation. Analog and
digital voltages that may vary across the full power-supply range (from VCC to GND). 

The Select pin has over voltage protection that allows voltages above VCC, up to 7.0 V to be present on the pin without damage or disruption of operation of the part, regardless of the operating voltage.

Advantages And Characteristics

  • Low power dissipation: 1uA
  • High bandwidth: 350MHz
  • Standard CMOS logic levels
  • High speed with improved linearity
  • Switches Standard NTSC/PAL Video, Audio, SPDIF and HDTV
  • Suitable for Clock Switching, Data Mux’ing, etc.
  • Low RDS(ON)
  • Break Before Make Circuitry, Prevents Inadvertent Shorts
  • Operating temperature -55℃~ +125℃
  • Available packages: SC70-6, DFN-6


  • Industry control systems
  • Battery-powered systems
  • Audio Signal Routing
  • Portable Instruments and Mobile Device
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