期刊
IEEE JOURNAL OF SOLID-STATE CIRCUITS
卷 50, 期 3, 页码 704-713出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSSC.2014.2387946
关键词
CMOS; current-steering; digital-to-analog converter (DAC); full Nyquist; high speed; quad-switching; time-interleaving (TI)
A 9 bit 11 GS/s DAC is presented that achieves an SFDR of more than 50 dB across Nyquist and IM3 below -50 dBc across Nyquist. The DAC uses a two-times interleaved architecture to suppress spurs that typically limit DAC performance. Despite requiring two current-steering DACs for the interleaved architecture, the relative low demands on performance of these sub-DACs imply that they can be implemented in an area and power efficient way. Together with a quad-switching architecture to decrease demands on the power supply and bias generation and employing the multiplexer switches in triode, the total core area is only 0.04 mm(2) while consuming 110 mW from a single 1.0 V supply.
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