A charge coupled memory device is disclosed which comprises a plurality of CCD shift registers, input write circuitry, output read circuitry, and a plurality of charge comparison circuits, each of which are coupled between corresponding ones of the CCD shift registers. Each charge comparison circuit includes an active charge comparator device having a pair of field effect transistors that are cross-coupled to one another. Charge is applied from the output of the preceding shift register to an input of the charge comparison circuit, and the charge is compared with a reference charge developed from a reference signal. The charge comparison circuit provides complementary logic output signals that correspond to whether the input charge is greater or less than the reference charge. The charge comparison circuit is insensitive to voltage variations in the DC power supply and does not consume any DC power. The output logic signals are compatible with the logic levels of the external circuitry.