5186 Differential Preamplifier

Model 5186 Differential Voltage Preamplifier

The model 5186 is a high input impedance, low-noise, AC-coupled voltage preamplifier which offers a true differential input. It has a frequency response from 0.5 Hz to 1 MHz and three switched gain settings of ×10, ×100 and ×1000. It is a general purpose preamplifier which has the facility to be connected to grounded sources in a manner which breaks ground loops and since it has a true differential input it can be used to measure floating sources, such as the output from an AC bridge, without imposing an asymmetrical load onto the source. It can be powered from its own internally housed (alkaline) batteries, an external low voltage supply (±15 V or ±18 V) or from the model PS0108 remote line power supply (optional extra). This preamplifier can also be powered from most of our range of lock-in amplifiers.

  • Documents +

  • Specifications +

    AC coupled voltage amplifier with adjustable voltage gain and a maximum frequency response extending from 0.5 Hz to 1 MHz. True differential input and single-ended output via BNC connectors.

    Battery powered from internal alkaline batteries or external DC power supplies.

    Modes True differential
    Coupling AC
    Impedance 100 MΩ // 20 pF
    Frequency Response 0.5 Hz to 1 MHz
    x1000 gain

    > 110 dB (100 Hz to 1 kHz), degrading by 6 dB/octave above 1 kHz
    x10 or x100 gain >90 dB (100 Hz to 1 kHz), degrading by 6 dB/octave above 1 kHz
    Max common-mode input voltage, x1000 gain 5 V pk-pk
    Max input without damage ±15 V DC or 10 V rms. AC @ 50 Hz
    Noise see Figure1. Typically 4 nV/√Hz @ 1 kHz and x1000 gain; 10 nV/√Hz @ 1 kHz and x10 or x1000 gain
    Gainx10, x100 or x1000 switch selectable
    Gain Accuracy ±1%
    Gain Stability ±150 ppm/ºC
    Impedance 450 Ω
    Max voltage swing >10 V pk-pk
    Slow rate >22 V/µs
    Polarity non-inverting
    Distortion < 0.01% T.H.D.

    Four 9 V alkaline batteries provide approximately 12 hours of use

    ±15 V or ±18 V DC @ 27 mA
    b) 110 V AC or 240 V AC via optional external model PS0108 power supply
    (excluding connectors)
    8.25" wide x 11" deep x 305" high (210 mm wide x 279 mm deep x 89 mm high)
    Weight 5.3 lbs. (2.4) kg) excluding power supply
  • Options +

    Item Model Number
    Rack Mount K0304
    Remote Power Supply PS0108
    Pack of 20 Alkaline Batteries PS0109
    Power Cable-
    Utilizes power from Lock-in Amplifier
  • Software +

    Item Model Number
    Acquire Software
    The software includes a powerful plotting engine that lets you show data just as you want it using a variety of line styles, allows data export to both text and CSV files, offers comprehensive clipboard support, and includes a context-sensitive help system
    Active X Control SRINSTCOMMS