A current-mode DAC unit circuit with smooth transition*Project supported by the National Natural Science Foundation of China (No. 61401243) and the Scientific Research Foundation of Ningbo University, China (No. xkl1331). (July 2015)

• Record Type: Journal Article
• Authors: Ye, Yidie; Xia, Yinshui
• Is Part Of: Journal of semiconductors. Volume 36:Number 7(2015:Jul.)
• Page Start: 3285
• Publication Date: 2015-07
• Subjects: Semiconductors -- Periodicals; 621.38152
• DOI: 10.1088/1674-4926/36/7/075006
• Languages: English
• ISSNs: 1674-4926

Abstract

<abstract> <title>Abstract</title> <p>The digital-to-analogue converter (DAC) plays a significant role in modern electronic systems, and current-mode DACs are widely used due to their excellent properties. However, the non-ideal transition at switching instants of the unit circuit will directly affect the performance of the current-mode DAC. The parasitic effects resulting in non-ideal transition are analyzed in this paper. A simple structure unit circuit is proposed to diminish the non-ideal transition. The simulation results show that the parasitic effects are suppressed effectively, and a smoother output transition is achieved. The feasibility of the proposed current-mode DAC unit circuit is verified by the application in a frequency jitter circuit.</p> </abstract>