Hi everyone. I implemented a DC blocking capacitor in my charge amplifier design to remove the blackground amplification and I have a question. I added a .2uf capacitor and 110k resistor to ground to the output of my amplifier. It did great at removing the amplification of the ambient light, however now the pulses are oscillating from +/- 200mV. How can I reconfigure this circuit so the pulses go up from ground, not oscillate about ground. I need to pulse shape through a LT1016 comparator and it does not seem to respond to these type of pulses. I attached my schematic. Thanks.
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