Focal plane array processing method and apparatus

An apparatus comprising:

• a two-dimensional array of photodetectors;
• and
• a two-dimensional array of analog-to-digital converters (ADCs), wherein at least one ADC in the two-dimensional array of ADCs comprises:
• a capacitor operably coupled to a photodetector in the two-dimensional array of photodetectors to integrate current from the photo detector;
• a comparator operably coupled to the capacitor to generate a latch signal when a voltage across the capacitor reaches a reference voltage;
• and
• a voltage source operably coupled to the capacitor to charge the capacitor to a reset voltage between ground and the reference voltage after the comparator generates the latch signal.