Name
Abstract | ||
|---|---|---|
The linearity of high-resolution current-steering digital-to-analog converters (DACs) is often limited by inter-symbol interference (ISI). While dynamic element matching (DEM) can be applied to convert a portion of the ISI to uncorrelated noise instead of nonlinear distortion, DEM alone fails to prevent ISI from at least introducing strong second-order nonlinear distortion. This paper addresses this problem by proposing, analyzing, and experimentally demonstrating a low-cost add-on technique, called ISI scrambling, that, in conjunction with DEM, causes a DAC’s ISI to be free of nonlinear distortion. The ISI scrambling technique is demonstrated in a 1-GS/s, 14-bit DEM DAC implemented in 90 nm CMOS technology. The DAC’s measured linearity is in line with the state-of-the-art and its measured output power spectra closely match those predicted by this paper’s theoretical results. |
Year | DOI | Venue |
|---|---|---|
2022 | 10.1109/JSSC.2021.3085587 | IEEE Journal of Solid-State Circuits |
Keywords | DocType | Volume |
Digital-to-analog converter (DAC),inter-symbol interference (ISI),dynamic element matching (DEM),current-steering,non-return-to-zero (NRZ) | Journal | 57 |
Issue | ISSN | Citations |
2 | 0018-9200 | 1 |
PageRank | References | Authors |
0.37 | 0 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jason Remple | 1 | 1 | 0.37 |
| Andrea Panigada | 2 | 1 | 0.37 |
| Ian Galton | 3 | 1 | 0.37 |