Charge Amplifier Circuit. Normally this then goes to discrimination circuits or a multi channel analyzer. A charge amplifier consists of a high gain amplifier and a negative feedback capacitor cg.
However there were many drawbacks to this technology scheme. A charge amplifier consists of a high gain amplifier and a negative feedback capacitor cg. This increase appears at the output substantially amplified and inverted.
However there were many drawbacks to this technology scheme.
Up until the mid 1960s piezoelectric accelerometers were calibrated in voltage units mv g and voltage amplifiers were used to signal condition these accelerometers. A charge amplifier uses the basic integrator topology i e a capacitor in the feedback path produces an output voltage that is proportional to the integral of the input current and a resistor in the feedback path prevents the amplifier from saturating. This increase appears at the output substantially amplified and inverted. The circuit consists of an input signal conditioning stage and an adc stage.
