| 摘要 |
In one embodiment of the present invention, a switched capacitor digital/analog converter is provided, for example providing gamma correction in liquid crystal displays. The converter includes a plurality of conversion capacitors including first plates connected to an output line and second plates connectable via electronic switches to first or second reference voltages in accordance with the values of corresponding bits of an input word. The converter also includes a plurality of terminating capacitors, at least one of which is switchable in or out of circuit depending on the value of at least one of the bits of the input word. By suitable choice of capacitance values and reference voltages, a wide range of non-linear transfer functions can be provided by the converter.
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