Impact of Gradient Error on Switching Sequence in High-Accuracy Thermometer-Decoded Current-Steering DACs

被引：0
|
作者：
Karimian, Masood [1 ]
Hashemi, Saeid [1 ]
Naderi, Ali [1 ]
Sawan, Mohamad [1 ]
机构：
[1] Ecole Polytech Fed Lausanne, Dept Elect Engn, Polystim Neurotechnol Lab, CH-1015 Lausanne, Switzerland
来源：
2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012) | 2012年
关键词：
CMOS Digital to analog converter; gradient error; switching sequence; non-linearity; COMPENSATION;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, we describe the impact of square and non-square implementations of Current Source Arrays (CSAs) on the integral non-linearity (INL) of the thermometer-decoded current steering Digital to Analog Converters (DACs). The characteristics of several well-known switching sequences have been modeled and simulated using MATLAB in presence of different gradient error profiles. The simulation results show a significant correlation between the efficiency and performance of the employed switching strategy and the physical dimensions of the CSA. Based on the analysis of the obtained results, a strategy is introduced which includes a recursive approach towards the achievement of an optimum switching sequence for distributed current source-based DAC topologies.
引用
收藏
页码：1279 / 1282
页数：4
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