| 摘要 |
PURPOSE: A DAC(Digital To Analog Converter) using a two-dimensional INL(Integral Non-Linearity) bounded switching method is provided to secure linearity at an INL property by minimizing glitch energy. CONSTITUTION: A DAC(Digital To Analog Converter) uses a two-dimensional INL(Integral Non-Linearity) bounded switching method based on a current cell matrix structure. The DAC changes an input digital signal to an analog output signal. The DAC switches current cells, which form each matrix, through a column and row decoding mode. Switching through the decoding method divides a cell matrix to be equal into two from side to side as well as an up and down. The switching through the decoding method preferentially switches the cells which are located in a first quadrant and a third quadrant of the cell matrix. The cells, which are located in a second quadrant and a fourth quadrant, are secondly switched.
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