charge amplifier / for sensors
The Endevco® models 2680M1-XXX through 2680M7-XXX charge amplifiers, which are manufactured by Meggitt, are designed for use with piezoelectric transducers and are suitable for airborne applications. These amplifiers have an output voltage proportional to the input charge. As a result, the amplifier sensitivity is not affected by the capacitance of the input cable.
The -XXX is used for describing the upper cutoff frequency. The unit has two outputs: a biased output and an unbiased output. Both are adjustable with a common gain control.
The unit operates to a temperature that ranges from -55°C up to 100°C. It also has a storage temperature which ranges from -73°C up to 125°C. The unit is constructed using an aluminum and has an electroless nickel plate finish.