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Stanford Research SR552 Bipolar Preamplifier

Manufacturers Part #: SR552
Bipolar Preamplifier
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Stanford Research SR552 Bipolar Preamplifier

The SR552 Voltage Preamplifier is designed to work with SRS lock-in amplifiers, providing gain where it is needed most—right at the experiment. The preamplifier minimizes noise and pickup in the connecting lines and can reduce measurement time in noise-limited experiments. The SR552 has a bipolar front-end design (100 kΩ impedance, 1.4 nV/vHz noise). Power and control signals are brought from the lock-in by a 9-pin cable (included). The SR552 may also be operated independently by applying appropriate power supply voltages (±20 VDC, +5 VDC).

  • 1.4 nV/vHz Input Noise
  • BJT input, 100 kΩ Input Impedance
  • Gain of 10, 20, 50 or 100
  • Single-ended and Differential Inputs
  • AC Coupled Input
  • Powered by SRS Lock-in Amplifiers
  • High Common Mode Rejection

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