The first digital pulse width modulator based on pulse shrinking mechanism is proposed in this paper. With extremely simple structure, the operation frequency can reach 17 MHz and the chip size is 0.39 mm 2 only in a TSMC 0.35 µm CMOS process. Under 8-bit realization, the integral nonlinearity is measured to be -0.6~+0.45% which is the smallest ever known.I.
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