Abstract
Current-steering DACs have intrinsic high-speed characteristics and are commonly used in wideband communication systems. However, element mismatch will cause harmonic distortion and thus limits their performance. This paper proposes a new algorithm, Random Multiple Data-Weighted Averaging (RMDWA), to reduce harmonic distortion due to element mismatch. RMDWA can be used to eliminate harmonics to increase spurious-free dynamic range (SFDR) and multi-tone power ratio (MTPR). DAC cost can be reduced since larger mismatch and smaller device size are allowed. In addition, low-complexity digital circuit used to implement RMDWA algorithm is presented in this paper.
| Original language | English |
|---|---|
| Publication status | Published - 2003 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
Cite this
Lin, Y. H., Lee, D. H., Yang, C. C., & Kuo, T-H. (2003). High-speed DACs with random multiple data-weighted averaging algorithm.