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Preamplifiers

Signal Recovery offers a full line of voltage and current preamplifiers including low noise, wideband, and differential input.  All Signal Recovery’s preamplifiers are designed to work with Signal Recovery lock-in amplifiers or as stand- alone signal enhancing units.

  • 7210DIF Four Channel Differential Input

    4 Channel Differential Voltage Preamplifier

    • True differential inputs
    • Medium Input Impedance
    • 0.1 Hz to 100 kHz range
    • Gain of x100 with x1, x10 and x1000 available
    • Low Noise: <10 nV / √Hz at 1 kHz
    • External Power, Battery or Line

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  • 5402 Low Noise Current Amplifier

    • Low input impedance
    • Low noise
    • Single-ended virtual ground input
    • Six gain settings
    • DC to > 4 MHz frequency response
    • Internal rechargeable batteries

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  • 5113 Low Noise Voltage Preamplifier

    Low Noise Voltage Preamplifier

    • Low-Noise
    • Single-ended or Differential input modes
    • DC to 1 MHz frequency response
    • Optional low-pass, bandpass or high-pass signal channel filtering
    • "Sleep" mode to eliminate digital noise
    • Optically-isolated RS232 control interface
    • Battery or line power
    • Acoustic astronomy
    • Radio astronomy
    • AC bridge measurements
    • Oscilloscope preamplification
    • Hall-effect signal amplification

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  • 5182 Current Preamplifier

    Current Preamplifier

    • Low input impedance
    • Low noise
    • Single-ended virtual ground innput
    • Adjustable snesitivity
    • Bias current monitor (DC) and signal (AC) outputs
    • DC to 1 MHz frequency response
    • Battery or external DC power
    • Photodiode amplification
    • Photomultiplier amplification
    • Ion collector amplification
    • Electron multiplier amplification

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  • 5184 Ultra Low-Noise Preamplifier

    Ultra Low Noise Preamplifier

    • Medium input impedance
    • Ultra low noise
    • Pseudo-differential input
    • Fixed x1000 gain
    • 0.5 Hz to 1 MHz frequency response
    • Battery or external DC power
    • Cryogenic detector amplification

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  • 5185 Wideband Preamplifier

    Wideband Preamplifier

    • 50 Ω or 1 MΩ input impedance
    • Low noise
    • x10 or x100 gain
    • DC to > 200 MHz frequency response
    • DC offset control
    • Line power
    • Signal averager preamplification
    • Boxcar averager preamplification
    • Increasing sensitivity of oscilloscopes and fast ADC

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