Stanford Research System SR550 FET input preamplifier

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Stanford Research System SR550 FET input preamplifier


FET input Pre-amplifier (SRS SR550)

The Stanford Research SR550 Voltage Preamplifier is designed to work with any SRS lock-in amplifier. Preamplifiers provide gain close to the experimental detector, before the signal-to-noise ratio is permanently degraded by cable capacitance and pickup. The preamplifier minimizes noise and pickup in the connecting lines and reduces measurement time in noise-limited experiments.

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SRS SR550 Features

  • FET input, 100 MΩ input impedance
  • Gain of 1, 2, 5 or 10
  • 3.6 nV/√Hz input noise
  • Single-ended and differential inputs
  • AC coupled input
  • Powered by SRS lock-in amplifiers
  • High common mode rejection

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