SR844 RF Lock-In Amplifier

  • 25 kHz to 200 MHz range
  • 80 dB dynamic reserve
  • Time constants from 100 µs to 30 ks 
    (6, 12, 18 or 24 dB/oct rolloff)
  • "No Time Constant" mode 
    (10 µs to 20 µs update rate)
  • Auto-gain, -phase, -reserve & -offset
  • Internal or external reference
  • Two 16-bit DACs and ADCs
  • GPIB and RS-232 interfaces​