EQUIVALENT-CIRCUIT FOR A GAAS CCD

An equivalent circuit model was proposed for the charge transfer mecha nisms in a GaAs charge coupled device (CCD). Realistic simulations wer e carried out to assess the model at different transfer times and for different sizes of the charge packet. A comparison was also made with an analytical model and the results were quite close. Simulations of t he input and the output stages of the device were also examined. The k ey advantages of the equivalent circuit model appeared to be substanti al reduction in the computing time in addition to its primary use in a circuit simulator.