Preamplifiers

Preamplifiers

Preamplifiers

We have a range of high-performance, low-noise preamplifiers that are ideal for a wide variety of applications including low-temperature measurements, optical detection, and audio engineering
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8 Items

  • SRS SR556 Current Preamplifier

    Ultra low noise current preamplifier for lock-ins

    • 1 V/nA fixed gain
    • 5 fA/√Hz input noise
    • Bias voltage input
    • Powered by SRS lock-in amplifiers
  • SRS SR555 Current Preamplifier

    Low noise current preamplifier for lock-ins

    • 10V/µA fixed gain
    • 120 kHz bandwidth
    • Bias voltage input
    • Powered by SRS lock-in amplifiers
  • SRS SR570 Low Noise Current Preamplifier

    £2,616.00 £3,139.20
    • 5 fA/√Hz input noise
    • 1 MHz maximum bandwidth
    • 1 pA/V maximum gain
    • Adjustable bias voltage
    • Two configurable signal filters
    • Variable input offset current
    • Line or battery operation
    • RS-232 interface
  • SRS SR560 Low-Noise Voltage Preamplifier

    £2,564.00 £3,076.80
    • 4 nV/√Hz input noise
    • 1 MHz bandwidth
    • Variable gain from 1 to 50,000
    • AC or DC coupled
    • Two configurable signal filters
    • Differential and single-ended inputs
    • Line or battery operation
    • RS-232 interface
  • SRS SR554 Transformer Preamplifier

    • Transformer-coupled input
    • 0.1 nV/√Hz input noise
    • 0.1 Hz to 40kHz bandwidth
    • Gain of 100 or 500
    • Single-ended and differential inputs
    • >40 dB isolation from DC to 500 MHz
    • Powered by SRS lock-in amplifiers
  • SRS SR552 BJT Input Preamplifier

    • 1.4 nV/√Hz input noise
    • BJT input, 100 MΩ input impedance
    • Gain of 10, 20, 50 or 100
    • Single-ended and differential inputs
    • AC coupled input
    • Powered by SRS lock-in amplifiers
  • SRS SR550 FET Input Preamplifier

    • 3.6 nV/√Hz input noise
    • FET input, 100 MΩ input impedance
    • Gain of 1, 2, 5 or 10
    • Single-ended and differential inputs
    • AC coupled input
    • Powered by SRS lock-in amplifiers
    • High common mode rejection
  • SRS SR445A Quad 350 MHz Preamplifier

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