TO CO
2
Gas Sensing Evaluation Kit (Analog) USEQGCK5000000
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • KEMET Tower • One East Broward Boulevard
Fort
Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
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film device structure with a low noise transimpedance amplifier, which includes a 31 Hz first
order low pass filter.
To maximize the competitive advantage offered by this product it is recommended that
sampling and filtering regimes are modified in accordance with the following diagrams.
The figure below shows a typical waveform from KEMET TO sensors when illuminated with a
10 Hz emitter pulsed with a square wave.
There are two points to note about the signal shown above, as highlighted by the figure below
in more detail.
1. There is mid frequency noise present in the signal.
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2. Even at 10 Hz the waveform is not completely sinusoidal, demonstrating the higher
speed performance of KEMET sensors.
The diagram below illustrates how to sample the above waveform so as to minimize noise
present in the signal.
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This noise can easily be removed by oversampling
