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General purpose charge amplifier YE5850


Quick Overview

The YE5850 is a general purpose charge amplifier

Product specifications include: ±1000000pC | Gain: 0.01 to 1000 (switchable) | Low pass filter: 0.3k,1k,3k,10k,30k,100kHz, high pass filter: 3Hz,0.3Hz,0.03Hz,0.003Hz (switchable) | 0°C to +40°C | Voltage: 10VP (Max); Charge: ±106 pC (Max) | Quasi static measurement | Wide frequency bandwidth | High input impedance


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  • Ultra-low frequency measurement (down to 2μHz)

  • High current output (up to 100mA)

  • Wide frequency bandwidth and high input impedance

  • Three digit dial-in transducer sensitivity

  • Multiple Integrated low pass and high pass filters

  • Both charge and voltage inputs

  • Internal polarisation switch

  • Overload indicator


    Input cable2 meter STYV-1 low noise cable fitted with L5 connectors, 2 meter STEF0.9 low noise cable
    Output cable2 meter BNC cable Power supply cable both AC and DC cables


    Input voltage range-10V to +10V peak
    Input charge range106pC
    Equivalent DC resistance1014Ω
    Output voltage±10V peak
    Output current±100mA
    DC offset±10mV
    Loading impedance≥100Ω
    Noise≤30μV referred to input at maximum sensitivity
    Gain settings0.01; 0.1; 1; 10; 100; 1000mV/pC with transducer capacitance 1nF
    Accuracy≤±1% at 20°C±2°, 45-75% RH, >10kΩ loading, AC 220V±2%, DC± 18-21V
    ≤±2% at 0°C-40°, 20-90% RH, >100Ω loading, AC 220V±10%, DC± 18-27V
    Low-pass filters0.3kHz, 1kHz, 3kHz, 10kHz, 30kHz, 100kHz with cutoff frequency of -3db±1db and attenuation -12dB/oct
    High-pass filters3Hz, 0.3Hz, 0.03Hz,and 0.003Hz. (M, L options referring to user manual)


    Dimensions80mm(W) × 122mm(H) × 200mm(D)
    Electrical connectionL5 socket for input, BNC jack for output


    Operating temperature0°C to 40°C
    Storage temperature-55°C to 85°C
    Maximum humidity95% RH

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