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Programmable Filters

 

     SR 640 Two Channel Low Pass Filter

  • Two independent filter channels
  • 115 dB/octave rolloff
  • 1 Hz to 100 kHz frequency range
  • 0.1 dB passband ripple
  • 6 nV/√Hz input noise
  • Up to 80 dB of gain
  • GPIB and RS-232 interfaces

 

     SR 645 Two Channel High Pass Filter

  • Two independent High Pass Filters
  • 115 dB/octave rolloff
  • 1 Hz to 100 kHz frequency range
  • 0.1 dB passband ripple
  • 6 nV/√Hz input noise
  • Up to 80 dB of gain
  • GPIB and RS-232 interfaces

 

     SR 645 Two Channel High/Low Pass Filter

  • Two independent filter channels (1 High Pass Filter and 1 Low Pass Filter)
  • 115 dB/octave rolloff
  • 1 Hz to 100 kHz frequency range
  • 0.1 dB passband ripple
  • 6 nV/√Hz input noise
  • Up to 80 dB of gain
  • GPIB and RS-232 interfaces
         Datasheet