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Stanford Research SR445 350 MHz Preamplifier

Manufacturers Part #: SR445
350 MHz Preamplifier
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Stanford Research SR445 350 MHz Preamplifier

The Model SR445 350 MHz Preamplifier contains four wide-bandwidth, DC-coupled amplifiers, each with a gain of 5. The four channels may be used independently, or cascaded to provide a total gain of up to 625. The fast rise time, low noise, and excellent DC accuracy of the SR445 make it an ideal instrument for amplifying the outputs of fast photomultiplier tubes and photodiodes.

  • 4 independent channels
  • DC to 350 MHz bandwidth
  • 1 ns rise/fall time
  • 6.4 nV/vHz input noise
  • Voltage gain to 625
  • 50 Ω input and output impedance
  • 3 ns overload recovery

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