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Charge converter CC-20

Charge converters convert the high-impedance electric charge output signal of piezoelectric accelerometers into low-impedance voltage signals.
These are line drive pre-amplifiers that enable the sensor output signal to connect to the measuring devices. The price is much lower, compared with ordinary charge amplifiers.

Charge converter  CC-20


Input connector Miniature connector(10-32UNF)
Output connector BNC
Gain 1.0(mV/pC)±2.5%
Output impedance <100Ω
Frequency response (Hz)±3dB 1.6Hz - 50kHz(±3dB)
Maximum output voltage 5Vp-p
Maximum input charge >5000pCp-p
Noise level 100μVrms(50Hz - 100kHz)
phase 180° reversal
Operating Temperature range /-20 - 80℃(Non condensation)
External power supply DC12 - 25V, 0.5 - 5mA
Case material SUS303
External dimensions (mm) 12Φ×38L
Weight 20g
  • Because of the characteristics of the circuit of this product, the phase of the input signal is inverted and output.
  • To obtain the maximum output voltage, the following formula must be satisfied.
    I > Vmax × πf × (Cc × 1000 × 10-12) + 0.12 × 10-3
    I : Constant current value
    Vmax : Maximum output voltage (Vp-p)
    f : frequency (Hz)
    Cc : Output cable capacity (F)


Catalog PDF