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.
|Input Connector||Miniature connector (10-32UNF)|
|Gain||1.0 mV/pC ±2.5 %|
|Output Impedance||<100 Ω|
|Frequency Response (±3 dB)||1.6 Hz – 50 kHz|
|Maximum Output Voltage||5 Vpp|
|Maximum Input Charge||>5000 pCpp|
|Noise Level||100 μVrms (50 Hz – 100 kHz)|
|Operating Temperature Range||–20 °C to 80 °C (non-condensing)|
|External Power Supply||DC 12–25 V, 0.5–5 mA|
|External Dimensions||⌀ 12 mm × 38 mm (L)|
- 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)